How to PROPERLY Undercoat A Rusted Car or Truck. (Fluid Film Surface Shield, Woolwax)

[@RepairGeek]

Here are the tools that I used in this video: Wire Brushes (small): amzn.to/3sTpNz7 Wire Brushes (large): amzn.to/3HuV8vO Needle Scaler: amzn.to/3Hs1LPI Surface Finisher: amzn.to/3znL3xW Surface Finisher Wire brush: amzn.to/3FUtLuJ Bulk Products: (Compressed air required) Professional Spray Gun: amzn.to/3JITJUo Graphite Powder (Turns clear products black): amzn.to/3mYBzEm Surface Shield: amzn.to/3FYKptw Fluid Film: amzn.to/3qGGXNC Woolwax: amzn.to/3pSJTre Aerosol Products: Spray Can Handles: amzn.to/3F1d93y Inner cavity tool: amzn.to/3NNtZbP Inner cavity Adapter (Surface Shield only): amzn.to/3mYbOEq Surface Shield: amzn.to/3JGW4PO Fluid Film: amzn.to/32OQtX4 Woolwax: amzn.to/3sWTJKt My Amazon Store: www.amazon.com/shop/repairgeek Help support the channel, buy using my Amazon links As an Amazon Associate I earn from qualifying purchases and your cost is exactly the same.

[@jeremy8715]

I bought the adapters to get the surface shield to work with the 360° wand. 🤟

[@gregorymarsh9504]

Surprised you didn't include the options of a sandblaster, air chisel/hammer, and needle scaler. Those work wonders!

[@MTD12HPTURBO]

So I’ve had decent luck stopping the oxidization of rusty metal with a rust converter product.. currently I’ve got an old truck frame I want to protect from rust worsening. By the sounds of it you’d recommend fluid film it once I get it cleaned up and don’t body with the rust converter first? Have you any experience with a product like that?

[@RepairGeek]

@@MTD12HPTURBO kzbin.info/www/bejne/qqaUn2SGhLKab5o

[@ogfromutube9649]

So i bought a 93 nissan d21 someone had cleaned and painted the frame with what looks like tractor paint. Its extremely thick and rubbery. They seemed to do an ok job of removing the loose stuff but not perfect but more so got paint on lot of stupid areas. All in all its a 93 pickup with 75k miles that i got cheap and use for winter or dump runs. Should i try and strip and clean it better or think wont matter much?

[@bradboustead1682]

Tip for the DIY guys doing this laying on your back in the driveway: Park your car on a big sheet of plastic. Raise your car up on 4 good jack stands. Tape a plastic skirt around the sides. Weight down the bottom edge of the plastic skirt. Put a fan at one end to draw air through the tunnel you created. Wear a hoodie, old clothes, and some sort of face cover.

[@chrishouse5753]

Lol. Sounds like a good idea. Says the guy with a very rust coloured driveway. And all I did was wire brush four winter tires(rims).

[@RodgerMudd]

Safety goggles and respirator mask help out very much so. You don't want to breath the rust dust.

[@lobdsk]

Thanks for this not everyone has the luxury of a lift

[@KareemOwens.]

@@lobdsk rent

[@lobdsk]

@@KareemOwens. I’m sure they would enjoy fluid film all over their lift

[@Random-rt5ec]

Boston, MA area - Thanks to Fluidfilm & Woolswax my 2010 Crown Vic is rust free. I spray the undercarriage in the heat of August giving it time to ooze into all the crevices.

[@MarkAnderson-ym6xx]

💪🧠

[@masonmartin1464]

Where did you get yours done?

[@LitheInLitotes]

Crown BICCs are junk

[@SimpleLife_Adventures]

New England is a Beast. The amount of stuff on our roads in western mass can destroy a car in a year is not taken care of.

[@Random-rt5ec]

@@masonmartin1464 I bought the spray kit from the Woolswax Company and a compressor from Lowe’s and spray it myself. Winters have been mild so I only spray every couple of years. All together everything cost around $350 and I will admit it is a messy job but considering what cars cost now for me it’s worth the effort.

[@dkeith45]

Of the MANY rust proofing videos I've watched, yours is the best IMO OP.

[@ctchuteflyer]

If you are using ramps, I've found it easier to ramp up the sides of the vehicles rather than front and back. It helps with better access and more space one side at a time vs front and back.

[@ThePerpetualStudent]

Got to try that.

[@charliewatson9581]

i cant believe i didnt think of this. so simple. yet so smart. thanks!

[@mitchellholmes3285]

So? I have owed many trucks and I definitely live in a Salt belt. All of my trucks have been GM and my experience is that after the 3rd winter you will see the start of all the future problems with the factory pealing at the frame areas. What I also see because I always wash and scrap first is at the very least 2 gallon pales of dirt most of which is in the cavity of the frame and suspension areas. That said what good does it do to spray over the top of salt invested sandy dirt?

[@yoho1021]

Gonna try that ! Hate doing this do it every year - Ramps on one side may help

[@pkdude5334]

genius. Going to do this tonight.

[@schassis_eddi]

What about touching up the exposed metal with rust converter and primer and then put the lanolin on????

[@onceamoth]

Yep. I use Fertan tannic acid. Best rust killer I've ever known.

[@xIrHaxor]

Michigan native here and they salt the roads like mad. I noticed after undercoating (done before winter started) my XJ that salt does not stick at all to the bottom of it, its amazing lmao. will be doing this every year from now on. and if anyone is curious it took me about 3 full cans of the Surface shield aerosol to coat everything on the bottom. thanks for another great video!

[@omarkhan9966]

I am in Ontario and I agree with this comment. Once coated road salt does not stick.

[@Dwigt_Rortugal]

H4x0r, stay ahead of the rust on the XJ. They rot out so easily. Try to get inside the unibody "frame rails" near the rear wheels, as mine rusted from the inside. It's not an XJ if it doesn't have rusted out rockers. 😂 I miss my XJ and its dinosaur engine. I can still immediately recognize the sound of one coming.

[@Toby_Flenderson_1982]

So I've been noticing surface rust on my 1-year old tacoma in Dallas. I have seen other tacomas and toyota vehicles a few years older here with NO rust at all. So I'm pretty annoyed by that and have been attending youtube university recently and your info is definitely the most helpful. The single best bit of info that I just learned here, which really surprises me, is that you can apply these something like fluid film over surface rust and that will totally stop the rust. I thought rust was basically a terminal cancer that you had to root out one way or another. So, based on the fact that my rust is very, very thin surface rust, I plan to just apply fluid film over it and call it a day. Huge win. THANK YOU

[@ritchiewalker6194]

Yeah I'm looking at doing the same twice a year and hope it doesn't get worse

[@OutsideTheTargetDemographic]

I had several questions about coating the underbody when I started this video. I no longer have questions. 😁👍If an ignorant guy like me can get familiar with the process after a video, then you did a good job explaining.

[@RepairGeek]

Thanks!

[@jmm1000]

@@RepairGeek An important step seems to be skipped over at aprx 19 min 26 sec: ie: After wirebrushing the loose rust scale off, it seems to me that before applying a Fluidfilm treatment, that an important product category that you have previously reviewed (a phosphoric acid based rust- arresting treatment spray & neutralizing rinse & dry) would be a very prudent thing to do before applying a film protectant. Can you comment on your thoughts re: this step? - I for one, really believe in the power of an acid treatment to better help stop any surface action before filming....

[@johnnyray7790]

I learned to do this as an apprentice over in Germany at an Opel dealer. We used to power wash the under side of a car let it dry then put it the paint booth for a few hours @ 130 if I remember correctly. Your video was a great refresher. Good job and great content, thanks!

[@justincase9638]

This is brilliant... I've spend years thinking about this topic and while most of what you instructed is known to me but so much of it is not in my mind. You have pulled it all together and provided examples of success and failure that I've never seen anyone else do. This is THE Best resource on the web.

[@reedstemen]

Thanks for the information, these lanolin and cosmoline products have made a huge difference in the long term quality of my vehicles vs trying to sand and paint everything, and there is a massive time savings. Thanks for spreading the word to help other mechanics.

[@Teeveepicksures]

Like sheep's wool?

[@StrongFreeLovin]

@@Teeveepicksures sheep's wool wax

[@Teeveepicksures]

@@StrongFreeLovin I know, sorry. It was a dumb line from a movie.

[@WhitieMcWhite]

Great video. I do my vehicles every fall when I swap to snow tires. One thing I like to do is I put plastic garbage bags around the rotors/calipers before I spray so whatever product I'm using doesn't contaminate the brake pads.

[@jorangel87]

It’ll burn off

[@scottraymond3218]

Burns right off I’ve never had any issues.

[@patrickhollis5332]

Yea if the salt don’t contaminate them that sure want

[@troy3456789]

good thinking, prevents immediate slippery brakes

[@JamesThomas-dn6hz]

I put it on my calipers, bleed nuts, everything except the pads and rotors. I then take it easy in traffic with the brakes leaving twice as much room and not towing stuff for the next 50 miles. I then do a little burn off braking a couple times to get them nice and hot. I haven't had any issues with slick brakes.

[@stonepa]

Been using lanolin based products on my cars here in lovely Cuyahoga County, OH for many years. What a godsend. Toyota truck looks like new after 8 winters while my many neighbors and their untreated trucks rot away. And they think I am nuts. 😂

[@samsaunders5097]

Gonna be working on my rusty old van, thank you so much for making this video easy to understand for those of us who are new to working on cars. So much of the information out there is geared towards people who already know what theyre doing, what the tools are and all of that.

[@TeenDream888]

my friend fell into severe medical debt and is looking at selling her newer car for a reliable 2000 Mazda Protege ES. since rust is a _huge_ issue with that model, we've been looking at videos for coating the undercarriage and yours by far was the *best* . thank you for the detailed instructions and hopefully if everything goes well for her, she'll still have a reliable car that will last her a few years until she gets back on her feet!

[@jklacker1]

How did it go?

[@vadrifter3200]

As I have stated before. I truly appreciate your continued commitment to stopping rust on our vehicles. I had new rockers and cab corners put on my '03 Silverado last year. They put in a few holes so I can get inside with a wand. I ran the truck up on jack stands and used a hand held wire brush. Eight cans of Wool Wax later and the whole underside was done. Also was able to get the spare tire down for the third time in the life of the truck. Side benefit, Wool Wax lubricated the lowering/lifting mechanism for the spare tire. Believe me it did not want to come down. THANKS AGAIN!!!

[@Junior-fd8ux]

I recently had the rockers and cab corners on my 06 GMC Sierra too.. these trucks are great and just go..esp comparing them to the note on a new pickup lol.

[@mtxrawkus]

Lanolin is a miracle product!

[@xs650abear6]

I live in the rust belt, bought a 2007 D-max 2500 Silverado brand new in 07 and immediately undercoat it with Fluid Film. I've been undercoating it every year since using Fluid Film and there is no rust what so ever on my truck. Recently I was offered more than I paid for my truck in 07.

[@shelbywilson114]

I had to cut my spare tire support off. Spare living in my truck bed now

[@kittydaddy2023]

@@shelbywilson114 my spare tire support is rusted to the release mechanism. Debating whether to even try and get it down. I have roadside assistance, so as long as I stay in civilization I'll be fine.

[@alphaomega3766]

I've been working underneath my 05 f150. A lot of places are full of mud and sand. The front fenders are the worst for collecting crap behind the wheels. I highly recommend hitting the underside of trucks with a pressure washer.

[@strawhousefred2192]

I found that using a blunt air chisel with the air pressure really low works well to vibrate the rust scale off. Just need to be careful. Been spraying my cars for three years now. Seems to be keeping the rust at bay. The good thing is it forces you to look over your cars from every angle to know exactly where you are at before going into winter. Great video. Keep up the good work.

[@ultrazep]

Air needle scaler is the best tool for getting bad flaky rust off

[@mikerayle6103]

The more time you spend hands on the more you know about your vehicle. Sometimes more then the mechanic you might need to bring it to. If that's your option.

[@galehess6676]

yup, knocked a scoop shovel of rust off my rails with air hammer... loud... but effective

[@marcok6959]

I spent a lot of years working at Sherwin-Williams, one of the biggest things that we tell all of our customers during paint preparation is make sure everything is clean dull and dry. As far as Coatings go this gentleman has a good perspective on how to prep and keep your vehicles lasting longer. If you are going to use a cheaper route like say Grill paint or barbecue paint I would find a place where you can get the humidity down to absolute zero and even then I'd be willing to use a heat source to make sure that you have no moisture at all trapped inside as he said earlier if you put a coating on top of something that is containing moisture it will eventually pop the paint as the sun is the greatest natural puller. That's why you see so many houses on the west side that have their paint popping is because they did not get it completely dry they put a coating on top of it and then the sun hit it and it pulled out all the moisture. Would I can take away from this video is he was true and honest and no matter what you use make sure that your surface preparation an adequate dry time are impeccable to have any chance to survive❤

[@bobbarron6969]

Good information presented in a no BS manner - thanks. The electro-chemical basis of rust is actually quite interesting, though I can understand why you didn't go into electron exchanges. Years ago I read a book on rust published in England. The author included photos of zinc sheets that were used to line the inner spaces of automobile fenders that acted as sacrificial anodes. They were meant to be periodically replaced, much like the zinc anodes attached to the hulls of ships.

[@pnkpnthr80]

I find this video searching for fluid film on YT. I now follow this channel due to the expertise and thorough knowledge shown in this video. Thanks for your help.

[@96SupraTT]

Great video! Lanolin is 100% the way to go. In contrast to this video, I do not spray external surfaces, but instead brush it on. Takes longer yes, but I use FAR less product and it's only where I want it and it's brushed throroughly into the surface which gives a better smoother result that looks much nicer, like a painted surface would. I cringed at all the spray on the brake rotors. Spraying makes an absolute mess, not only underneath of the vehicle, but everywhere else in your garage. If you're spraying with jack stands, you'll be 100% waterproof afterwards. I bought a 1 gallon can and 2 trucks and 2 cars later, the can still looks full. I spray internal areas with a spray can because I don't want to invest in the gun even though I have a complete compressor and gun setup for paint. Although a cheap gun might pay for itself because there's hardly any product in the spray cans for the price. Also, I always do my exhausts, manifolds, and even turbo exhaust housings. It's my favorite application areas. Yes, it will smoke some the first heat up, but by brushing the layer is very thin and spread even unlike spraying so burnoff is minimal and the result is clean and smooth. It doesn't burn completely off, but transforms the previously rusted metal into a smooth dark brown color which looks great and a transformation from before. It also tends to last much longer than non exhaust areas. I'm 4 years on initial application on my 4Runner's rusted exhaust and it looks the same despite regular pressure washing the underside thoroughly because I like my cars clean.

[@ProfessorDickify]

Any nuances to brushing it or is it pretty straight forward?

[@96SupraTT]

@@ProfessorDickify Pretty straightforward. Unlike painting where you need to evenly apply the paint, this is more like you're rubbing lotion into dry rough skin using a brush. You brush it in until it's even. I'd use the same stiff brush with lanolin product on it to even clean off flaking rust. Week later that rust would fall off and I'd reapply the lanolin to a now smoother surface. I never had to wire brush beforehand, just pressure wash. I use Ospho acid with a wire toothbrush on my brake rotors. Unlike lanolin, it's harmful to work with needing a respirator.

[@Mr.International82]

I heard cosmoline is better

[@7r5y9s1]

Do u try to paint for extremely high temperature for exhaust ?

[@codyharney2997]

Sounds like your exhaust, manifold, etc is like how you season a cast iron pan

[@halflife82]

Great video as usual man. I know you posted this awhile ago, but just wanted to say thanks. I bought out ALL the Surface Shield in Calgary, AB today from all the stores I found online that had stock. Took me a few hours but pressure washed under my F150, then neutralized all surface rust frame spots and welds with Krud Kutter (best rust converter I’ve ever found, as has project farm!) re-pressure washed entire undercarriage and just finished coating it all in Surface Shield. Took me all day but she’s gonna be awesome during our salt enduring winter up here! 💪

[@galehess6676]

brilliant review. btw can get fluid film in gallons, enough to do a f150, for about $40

[@DirtSweatGears]

this might be the best video I've seen describing this stuff. Thanks for putting it out there. I have a very crappy British car that's falling apart from rust and now I have a plan to save it.

[@TheFabinhohc]

Well done dude! I have been in doubt, questioning myself about all the reasons why should I use a Lano product and how...I have researched quite a lot on youtube but your explanatory video was the best I could get hold of. Clear and straight forward! Thanks a lot and well done!

[@darrellwilson5808]

Seems like the manufacturer of the vehicle would have everything coated nice to prevent rust like this!

[@antoniodifilippo4190]

Very thorough. I have been personally undercoating my vehicles for years, and always trying something different. The old school of used motor oil and driving down a dusty road afterwards still works very well. Since dusty roads are hard to find today, I’ve experimented with spraying the oil coated metal with fine saw dust with a hand held sandblaster. Sounds funny but so far I’m liking it. This keeps it from dripping and makes it stay on longer. Internal surfaces need to be sprayed with something that creeps. But prior to that you need to blow out all the rust chucks that may be in there as they could shield the metal from the oil. I’ve also tried FF and recently surface shield. The bottom line is no matter what you use you must look at it once or twice a year. What you might have missed the first time you’ll catch the second time around. It’s a commitment. But also gives you a opportunity to take a look at everything. I agree though do not use anything that gets hard or does not creep in cavities or areas where two pieces of metal come together. Thanks for all the work you put into these videos, greatly appreciate it.

[@mrarmy300]

Right on! I've only been at this a few years, but just did 2 with bulk spray on fluid film, key is to get INSIDE those frame rails and other cavities just like you said.

[@swamp-yankee]

used hydraulic oil doesnt corrode your rubber/plastic parts

[@blazeboyblazeboy4470]

Under the sludge the dust forms it continues rusting. I've destroyed cars!with this method of used motor oil then dust. It looks fine outside but under it it dissolves.

[@ImplantedMemories]

Guys can you please don't spray old used motor oil on the underside of your trucks ? That's really messed up for the groundwater. Just use wax and or fluid film which is way better for the groundwater.

[@mrarmy300]

@@ImplantedMemories I agree, we need more fracking done to get that nasty oil out of the ground before it gets into the water

[@rasmadrak]

One of the (if not THE) best videos on the subject. Very thorough and excellently presented. Awesome stuff :)

[@matlock8314]

I don't see him clean the metal properly. Isn't a brown color indicate that rust is still on the surface? Unless its a multiple phase task and subsequent attempts will clean the metal properly. Also must the material get on the tires?

[@thevanvirgin]

@@matlock8314 You just need to get the loose rust off, the flakey bits.

[@juberschar3842]

For those of us with older cars without stainless steel exhaust parts , clean them with wire wheel on drill or grinder wipe clean with thinner or similar solvent then run vehicle for fifteen minutes to dry parts off. Once dry , spray on a good coating of galvanizing primer which should contain 90% or more zinc. Apply again in the spring or just touch up, this will allow you to keep your exhaust pipes from rusting out in three years. While you are replacing pipes spray the inside and outside before mounting on vehicle. Note clean the oil coating off the new pipes before coating with zinc primer.

[@3vanguardofthephoenix335]

Be careful zinc is super toxic, that's why welders get sick from welding galvanized. I would not recommend a zinc coating on any exhaust components, as they get super hot and melt the zinc

[@fm00078]

Refreshing to see a (positive word use) kid that has patience. SO MANY simply don't last more than 20 - 30 seconds before they're done with 'X'. Shame you're so far from N. ILLinois I'd stop in with my car. THANKS FOR A GREAT VIDEO.

[@Xman_Hz]

Thanks for the video. You made this topic of undercoating crystal clear compared to many other videos and forums I’ve been reading on. I’m going to fluid film my 2009 4Runner and aside from some minor surface rust the frame is in fantastic shape so I want to keep it strong for many years to come. I wanted to make sure I was doing the right thing by using fluid film and not some other rubberized coating or product.

[@montecarloss305]

Just recently discovered your channel while searching rust prevention/mitigation strategies. Thank you for these type of videos. I've got a 24 yr old, 270k mile car for my daily that, despite my best efforts, is starting to show some underbody age/surface rust. Gonna be trying to head that garbage off at the pass with some Surface Shield. Thanks again!

[@PercyClips]

What kind of car?

[@RotoRCol]

same what car?

[@montecarloss305]

@@RotoRCol 1998 Camaro Z28. Been my daily driver since 2005. Only complaint about doing it is that it makes working on anything under the car now pretty nasty. I've never gotten so dirty changing a fuel filter. But I guess there's a trade off to just about everything!

[@WildSideComedy]

That's an awesome daily

[@alexbaek9838]

Didn't have to watch the entire video and I couldn't have been more happier. Been thinking about how to deal with the minimal rust under my truck and BOOM, this video. Please keep this up!

[@ChelsyChoy]

Think I’ve landed at the best video, thanks for being straightforward and providing so much information!!! You’re very helpful

[@frankgiancola7]

Great video ... I've been spraying motor oil my cars for 40 years and it works great ... none of my cars ever rust and the rust that's already there never gets worse with regular spraying ... the cavities in the outer body benefit greatly from the oiling and lasts along time because they r enclosed and water does not wash it off.. I spray everything underneath including the rubber stuff ... it rejuvenates old rubber parts including cv boots ball joints ...it also rejuvenates plastic bumpers and moldings...rejuvenates leather interiors and dashes.. I liked and subscribed and look forward to your next videi

[@retiredjedi6178]

What type of sprayer are you using?

[@ochrysler]

@@retiredjedi6178 try a fertiliser sprayer. The one with the top manual air pump.

[@PaddleDogC5]

.breaking the law

[@emmittmatthews8636]

@@PaddleDogC5 lol

[@slalomking]

Doesn’t the oil drip all over a garage floor?

[@AvalonEndures]

This was incredibly informative. I'm having a battle with rust on a 1992 Toyota Pickup and after watching your video, I have hope. Thank you for sharing.

[@gregd4391]

Check-out Project Farm. He did testing on multiple products to see which protects the best.

[@bazthehandyman]

oil underspray is the only answer to stop it.

[@gcz636]

1992? Maybe look into Toyota recall, buy back and see if that truck is on the list. They did buy back certain models back then due to frame rot. Could possibly give you big bucks for a rust bucket. $$$$$

[@shamwaymoonyos9578]

I love this video. Great explanations etc. I undercoat my 2015 WRX yearly in the fall living in New York State. In the first year of ownership I had it professionally undercoated. Afterwards I was using a homemade undercoat solution. I have a little bit of rusting in some spots hard to get at but nothing major. This year I will step it up again using Fluid Film with compressor and sprayer. I just have a bit of prep work to do but since I've kept up with undercoating and checking on it yearly as a maintenance item it is pretty damn solid. Family members and friends think I waste time doing this but I say if you plan to keep your vehicle more than 10 years without it rusting apart then take care of your undercarriage and prevent rusting as much as possible.

[@tomjones2348]

I'm new to your channel. At first glance I was put off by the length of the video, as most long videos could easily be edited down to half the time. But, after watching I realized you are very articulate, methodical, know your subject, and want to make everything perfectly clear. That's worth my time. Thank you for sharing your knowledge. I wish you were in central florida. I'd just take my vehicle to you to get it done right.

[@veritasaequitas9838]

I am so happy to have seen this video before tackling my 2000 Tundra (The RUST King!!). I've been holding on to Por15 while I gathered remaining parts and supplies. I IMMEDIATELY went to Master Coat site and they are sold out die to the high demand from YOUR VIDEO!! That's awesome and a bummer at the same time. Keep up the good work and thank you!!

[@runner3033]

Did my car a year or so back when I first bought it - took off all plastic splash shields in the wheel wells and under the engine bay, also and removed brake pads and rotors. This gave me superior access to hub faces/knuckles and all sides of the front and rear crossmembers. Added some extra work, but was well worth it to get unfettered access to everything!

[@johnbradley5236]

So what did you coat it with? 1st time viewer here

[@runner3033]

@ The product I used is called “corrosion free”. Didn’t specifically mention it as I didn’t think it’s really important; anything is better than nothing - corrosion free, fluid film, Rust Check, etc etc

[@Oliviiiful]

I used to work at a undercoating garage some 30 years ago. First we would use the pressure washer to remove the rust, salt and sand from dirt road. Then we would coat the rust whit rust converter then again with the pressure washer to neutralize the converter. Next was thin film lanoline for 1 year warranty or heavy rubberized rubber for 10 year warranty whit top coating of lanoline every 2 years. The worst part of the job was spending the day in full protective gear whit respirator.

[@andrewb3497]

Yep, after thoroughly degreasing the are you want to treat, you need to apply a phosphoric acid rust converter to the rusted areas (keeping the areas "wet" with rust converter for at least 30mins (in warm weather - longer when cool/cold). After that wash with water and allow to dry then spray with an epoxy primer paint that preferably has a zinc phosphate additive. Then spray on a coating of stone chip preventative.

[@NRP1991]

I’m in Ohio and gosh I wish I could have everyone I know just follow this video. Even if it’s just one application. Boss bought new trucks last year for our delivery service. Absolutely against any sort of undercoating. So I’ll just sit back and watch it happen to the new trucks. 🙄. This is one of the best videos out there !!!!

[@flowergarden1426]

Why are you against it?

[@sashasmail-h6c]

@@flowergarden1426 HE is not, his boss is

[@winstonchaychel]

This is badass, thank you!!! Gonna do this on my Pontiac while she's still good before she gets any problems. Her rockers are a different story, though. She lived near the salt lakes before I got her but everything else is great on her.

[@JamesDoylesGarage]

Best analysis of how coating work on metal to fight rust. I really enjoyed this . Thank you

[@mikemorrison6023]

Great video! The only thing we do differently is , I heat my fluid film until it's very thin . It really wicks into everything. Fantastic stuff for a central PA winter .

[@Gadget0343]

How do you heat the product?

[@NigelNaughton]

I do the same thing..you can just put it in front of a heater for a bit. Works great when you pour the Fluid Film in the spray can you are going to use and heat it up just a bit. It sprays way easier.

[@GTkyle]

I'd also like to know how mike heats the fluid film

[@RepairGeek]

@@Gadget0343 I just take the bottles for the spray gun and drop them in a bucket of hot water. Give them 15 minutes and they are nice and thinned out.

[@dwightrhodes2051]

@@GTkyle I sit my 5 gallon buckets in front of my waste oil furnace for a bit before I spray and I do mix it also.

[@Mooseracks]

I have an undercoat formula which saved my toyota tacoma's frame from being replaced.... Received a recall from toyota to replace my frame... WHEN INSPECTED, the report was my frame was in perfect shape and did not need replaced

[@jerryray808]

have a 03 t4r . bought in Georgia . 8 years in Wisconsin now. liquid salt is the new thing here and it is much worse. i wondered why there is often a frame sitting at the Toyota dealer. I may rent a bay @ $35/ hr to redo mine this fall.

[@jima1635]

Could use a compact air needle scaler to get into those rusted areas. Works well at getting the rust off and prepping areas hard to get to.

[@ozoneswiftak]

I changed my mind. I went to home depot. Yep, bought three cans. It worked pb blaster. Great job using this channel

[@lukemorgan8447]

I feel your videos are the most helpful and informative compared to other under coating videos. A much more thorough and honest video about understanding the properties of lanolin based products and I ordered some fluid film on Amazon and did my brand new Subaru Crosstrek still have a few Ares to hit because I didn't do it in the fall and waited til it got col lol. Ill know for this year to hit it in the fall right before winter. Like you said driving in the rain will help wash salt off in the summer. I want to keep this car looking good til I trade it in on a new one and help hold its value.

[@lindablack8843]

This guy knows his stuff! You should listen to him! 👍 Great video.

[@PatrickBlanchard-c6j]

Ok first of all, I also do bodywork professionally. I've listen to what you have said and I have the following to had up but nothing major and I can say that you are right. Second.. I speak french so excuse my mistakes... I live way up north in Québec with salty roads... So rust is about 90% of my work... For undercoating... I thrust POR-15, I have looked at your peeling... This is due to a bad application, it does not fail.. that paint is strong has hell! Reason for peeling (please everybody, read the technical data sheet of every paint you will apply and that even though you think you know how to paint! Every time I try something new, I read it first and I even refresh my self with what I use regularly) Bad preparation, not appropriate sanding grit, bad clean up prior painting, metal not dry enough prior painting. ATTENTION For POR-15 IT IS CRUCIAL TO READ THE INSTRUCTIONS BECAUSE IT WILL FAIL AND THEY DO WARN YOU. YOU APPLY 2 THIN COATS, THE SECOND COAT MUST BE APPLIED TO THE FIRST COAT WHEN THAT FIRST COAT IS TACKY BUT DOES NOT STAIN YOUR GLOVE WHEN YOU TOUCH. TOO EARLY, THE WHOLE PAINT WILL FAIL, TOO LATE, THE 2ND COAT WONT STICK TO THE FIRST ONE. Remember everybody, NO PAINT WILL EVER STICK TO A SURFACE THAT WAS GLOSSY! IT HAS TO BE PREP WICH IS CLEAN-DEGREASED/SANDED/CLEAN-DEGREASED AGAIN! POR-15 is very very sensitive to oil... it will fail if any You should never paint straight out of the por-15 can... alway poor some in another pot and never EVER put the remaining back in the can... you will destroy your good paint! Its not worth it! What goes out never go back into the can! Some may say "why should I clean first if I am gonna sand?" Easy, because by sanding over a greased panel, you will introduce oil/grease deep into it and your job is than worth shizer! Now I clean with a laser... 100% effective and cheaper on the long run! Now, over the por-15 once dry and inside the frame... I shoot them with annual anti-rust oil! Every years... The secret to avoid loosing your car? To avoid redoing your under carriage... Do this the sooner and then on... every single year! When a car is brand new the better... you want your panel and frame members to be cleaned and no rust.. dont give it a chance to start.. once rust appears.. the cancer has started! And remember, it never sleeps... PPG recommend the etch primer to be painted within 15mins after final sanding! There is always humidity in the air! Anti-rust proofing oil should be applied when temperature warm so it will introduce itself every where.. too cold it won't. I recommend doing it now in september... not too early prior winter because you want it at its best... it will dry out overtime... but stay there... then you had up... the oil disperse the water! seals the metal... but it works over time... Thrust me... I rebuild 10 years old cars.... When I do my shopping at the graveyards.. first thing I look is for those stickers on the door... I see the difference! I open those cars for body parts... thrust me it works! When anti-rust oil and/or paint are applied over rusted surface... the rust will always keep moisture... This is why you take it off.. before painting... You want to know how much steel there is left? Easy, look at the bubble.. the bulge of the paint... mesure it.. imagine it goes under as much as over.. and divide that by 2... that what you have lost! Rust is twice as big as steel! it doubles in size! As years goes on.. car steel is getting thinner and thinner! ( 22 gauge +/-) That don't leave room... Another important thing before painting... I know its another step.. a bit more money... but it helps.. Metal are being treated with phosphates and order crap... Every time you take paint off a piece of metal, wether chemically or mechanically you should treat the metal with a metal prep solution... Poor-15 has one! It gives the metal the strenght and energy to fight rust... once its gone the rust kicks in! When rust appears.. its because it does not has anymore vitamines... it also help into the etching of the paint! Now I was thinking about trying something... bring it from the naval engineering... welding zinc anode to the body of my car! This is how you fight rust on the hull!

[@RepairGeek]

kzbin.info/www/bejne/inKliIN-qtmeY6Msi=R3SwPtdAbujuM635

[@AndrewKellman]

Totally agree with you on the GM Wax. Coated my 2015 Silverado with woolwax this past year. I'm in NE Ohio also, the factory wax was pretty much non-existent on the back half of the truck frame.

[@timhenderson6473]

Gm is still dipping their higher end trucks in that wax.u can scrape it off with your fingernail.they say it penetrates inside of frame.who cares if it doesn't last

[@GoldCashOnly]

Before last winter I used Fluid Film on my 22 year old snowblower for the first time as I had never lubed or protected anything other than the zerks. It also offered some lubrication to the rotation points (i.e. chute and unversal linkage that controls it). I just pulled the snowblower from the shed 2 weeks ago with the intent of another spray but was surprised to see all the areas were still very wet. This year I sent my vehicles into Krown for the paraffin/oil underspray for the first time ever. This video is spot on!

[@DG-hq6rc]

FYI krown is not great. Its by far the most popular thing I'm my area here but to my surprise watching this giys other video comparing all the different products, krown performed very poorly

[@GoldCashOnly]

@@DG-hq6rc Thanks for the tip, any advice who I should take the vehicle to next time?

[@DG-hq6rc]

@@GoldCashOnly i personally bought a gal of blaster surface shield. Trying to find a shop to spray it for me here but it's difficult. All the shops want to spray their own product out of barrels. So I bought my own guy and attachments. I found a few smaller places thst said they would do it for me but hoping a bigger shop will do it in the next few weeks since its less busy now... that being said, I still do believe krown to be far better than nothing at all of course. Just not one of the best from what I've seen.

[@sven-erikviira1872]

What I loved about this video is logical consistency - this -> therefore that. Real tried and tested methods.

[@Grendelbc]

For years I've handled rust in the following way: Scrape off the loose stuff. Wash and let dry. Apply a rust convertor. Then I apply por 15 followed by rustoleum paint. Every couple years I go back and reapply por 15 and rustoleum. I usually only add the rustoleum on surfaces exposed to sunlight. It's worked fairly well on my older vehicles. I've never seen por 15 come off in big chips like you suggested. Mostly I see the rustoleum flake off. I'm not stopping the rusting process completely but I've slowed it way down. You're dead right about the frame interiors. Sadly, many who restore old vehicles don't seem to take that into consideration. I bought some spray cans of Fluid Film recently and will try it out when the weather warms up. NOT going to try to remove years and layers on the other stuff I used. Will just spray on top of it and hope for the best.

[@williamallen7836]

Por-15 eventually "pops" and let's moisture & air under it. Just spraying Fluid Film over it will just allow the rust process to be hidden from sight. I had a shop do a rust repair, and they covered it with por-15 after welding in a patch piece. It was the only area that rusted after 1 winter. I had sprayed the car with a lanolin oil like I normally do. All the other areas have remained rust free. So I'm no all that impressed with por-15. It suffers all the same issues the rubberized undercoating have when driven on salted roads.

[@happydayz5321]

@@williamallen7836 Yep, Por -15 will not stay on no matter how much prep you do before applying. No 'hard coating' will remain impervious with all the vibration that it has to endure.

[@mmaaddict78]

I use the black fluid film on my Fusion. It’s such a pain in the ass removing all of the plastic covers under the car. The good part of having the plastic covers is that the car wash undercarriage spray doesn’t blast off all of the fluid film.

[@Oliverlikesbikes]

I'm in the UK this is a very professional and well thought out video. Great if you have a car made before around 2005 but if you have newer I wouldn't bother as my experience says an electronic or other issue that is too expensive to repair will kill the car long before the rust does. But for those of us who now use older vehicles thanks very much this is great information.

[@jdesmo1]

Unless it's Toyota/Lexus 4Runner, GX, LX, Land Cruiser, Tacoma, Tundra, etc. These can last forever, but the frames rust.

[@Oliverlikesbikes]

@@jdesmo1 yes agree I only have toyota or old school subaru these days

[@camposvazquez]

​@@jdesmo1 not accurate... All cars with their overly designed electronics...drive by wire and sensors to fail... Early 2000s is the peak of Japanese automotive design... Variable valve timing is the second reason for failures

[@ericpetz5831]

​@@jdesmo1 yep up here in the rust belt, their tube frames rot out long before they die mechanically. Because those tube frame have no drain holes. They rot from the inside out, due to the moisture ( condensation ) that builds up inside them over time, especially in the cold climates.

[@HonorNecris]

I've got a 2006 Accord that's spent every winter in either WI or MN, and both states love their salt - I'm planning on undercoating this spring. Thank you for making this video, the information is invaluable.

[@mattstrom5348]

I spray once in spring and fall. I use garbage bags to cover my breaks and drive belts and pulleys, so overspray doesn't mess them up. You have to remember to take them all out or they can sucked into the engine! I prefer to use a suppled air system to breath, as it's more comfortable yet more awkward than a cartridge respirator. I have had rust check red the inhibitor, melt, swell, crack and destroy rubber over time. On rubber and aluminum, I use a silicone spay that is advertised to be safe on rubber. I use the rust check green, a fluid film like spray on large parts like the drive shaft and some other parts and I use rust check red on the rest of it. The best time to spray is when changing your tires in the spring and fall, so you can access the wheel wells with spay at the same time! Here where I live, I get a lot of road sand that likes to build up on parts around the wheels and when it gets to thick for the inhibitor to penetrate, it all has to come off and start from scratch because I found that underneath the oil soaked sand, that things can be still rusting away in some areas. Oh yeah, I like your hoist!

[@whomadethatsaltysoup]

Absolutely brilliant content. I've just purchased a 2009 x type Jaguar. It passed its MOT (I'm over the pond in Scotland) but had an advisory on the sills. Apparently, excessive rust on the sills is a common problem with this vehicle. Anyway, I was wondering - once I've had the body shop carry out the necessary repair and welding to the pinch weld and any serious corrosion - how I would protect the underside, and that's when I landed on your excellent tutorial. Whilst I'm not comfortable carrying out any mechanical repairs, I'm more than happy to tackle the time-consuming wire brush and application of protection tasks. Just didn't know where to begin, and now I have a much better understanding of the procedure. Thank you for sharing!

[@troy3456789]

i wonder, being English or Scottish, how the American English must sound to you. As an American, it seems like it must be a little bit of a strain to speak and keep an English or Scottish accent; but of course this is false if all you have heard during developmental years is the Queen's and King's English or Scottish accent. I just wish I could hear it from your perspective. We do not get to choose the languages or accents we speak or have, anymore than we can choose our skin, eyes or hair color. English from the UK is pleasing to the American ear in my opinion (with several different accents in the UK) Faked English accents by American actors seem to be obvious to UK dwellers. On the other hand, faked American accent by English actors is generally quite convincing, with few noticeable slip ups. Daniel Craig's southern USA slow drawl English in Knives Out is quite convincing.

[@davidyendoll5903]

I am a Brit , Welsh by birth , but most of my life I have not lived in Wales . My welsh accent , slight accent though it is.returns once I arrive in Wales , even without speaking to anyone .... strange but true ! There many , many , Brit accents and some times I do not understand every word I hear ! When I am in the company of Americans I find myself grinning a lot as there as so many words that have very different meanings ; I just find it amusing I am not looking down on anyone's use of language . I took my family to Disney years ago and after a couple of hours it started to rain . Near by there was a lovely older lady , who was working , looking after kids doing drawing 'lessons' . I wanted a cigarette , so I left the kids with her and explained that I would be in sight and that I was off for a fag . Well that shocked the lady , horror in her face shock ! So that started a conversation that was highly enjoyable for all of us and we all learnt some lessons ! Lol . Diversity in our language is a blessing in my opinion . ATB and HYN @@troy3456789

[@ItchyKneeSon]

Awesome! Loving this series! I'm about an hour north of you right in the heart of the snow belt. A customer of mine just asked if I could coat the underbody of his Chevy truck. So, this was timed perfectly! Now, get yourself some nice lights and a decent wireless mic to improve the audio/visual appeal of your videos, bruddah! Take care.

[@quentinc1275]

I agree with what your saying about cosmoline but I think it's superior to lanolin products on the fronts of control arms and the outsides of frames where it doesn't wash off but also where there arent cavities for it to become trapped. I think a combination of cosmoline on high wear areas and fluid film/ surface shield inside cavities and harder to reach areas is the "best" in my opinion but it depends on vehicle type, condition, and your personal situation.

[@RepairGeek]

I agree. On exposed high water contact areas it's hard to beat. I try to use 1 one size fits all approach because it's easier to justify buying 1 product over 2 and it makes the spray process easier because you're not switching products depending on where you're spraying.

[@robertthomas2942]

A great vid! I have used Fluid Film but currently prefer NHOilUndercoating. The only issues I've had is it attacked the valve stems on a set of snow tires, after about 4yrs, they softened up and needed replacement. No biggie. I don't bother with the wire brushing, etc. I just blow the loose crud off with an air gun. My theory is the rust actually hold more of the product in place over time. Think about the inside and top of frames in trucks. You can't really knock the rust off those areas, or the backside of gas tank straps, etc. I use more product than you do, relying on the product to "creep" into/onto areas it wasn't directly sprayed. Lastly I had the type of gun you are using but traded up to a Lemmer gun. Once you use one you'll never go back. Pressure pot type so it moves a lot more product with minimal over spray, regulator on the gun, quick disconnect for the tips and needle adjustment for fine tuning. It's excellent.

[@nman7044]

2016 Silverado 2500, 185k miles, have been spraying since new and still looks new through the New England winters… best preventive maintenance ever!

[@scotgustafson3270]

I used to undercoat cars for a living. This video is spot on. Very useful information.

[@jacobwickman8504]

Couldn't agree more about the GM wax coating. I put Fluid Film on my '15 for the first time this year, and I found that the coating refreshed it and made it even better than new. Over time it may become more and more diluted and eventually sling off, but for now it's great.

[@upon1772]

I'm debating about putting Fluid Film on my dad's '18, but I am hesitant to (at least on the frame). Mechanic we take our vehicles to get inspected to put Fluid Film on his brand new '21 Silverado, and the wax coating is literally peeling away. Not sure if the wax they put on the '19+ is different from the '14-'18's, but the wax was literally peeling away before the truck even encountered any salt here in western PA.

[@ctchuteflyer]

Good. Let that trash peel away, then coat it with fluid film or surface sheild so it is actually protected.

[@andreiierdna9356]

Amazing video - this is truly the best video on car rustproofing I have seen after almost 10 years of doing research on this topic and having my car rustproofed with oil. Just the truth and no marketing for BS products. I will start rustproofing my cars myself now. Thanks!

[@thedude8976]

AGREE 👍

[@radoslavzlatinov3255]

So what about rustproofing with oil - did it worked for you?

[@andreiierdna9356]

​@@radoslavzlatinov3255Yes, it works better than all other options, but it still has to be re-applied once a year, or every 2 years. Nothing lasts forever.

[@AJSax0n]

Great job and thank you for all the work you put into this video. My only suggestion is that things that can easily be removed should be as the rust will still be on the other side, for example the metal frame you first started to wire brush.

[@brenyz5013]

Thank you for spending all of your time doing this. It really helps people it sucks spending lots of money and lots of time with poor results !!!

[@friendlyinetuser5023]

This is such a great comprehensive video. I like the engineering explained style intro explaining the high level overview of your approach tackling rust. Great work!

[@joselalfaro]

Nice Man! Your undercoating videos are the best and more honest I’ve seen on KZbin! Thanks for sharing your knowledge and experience!

[@glock21guy]

We seem to be of the same school of thought on this. I bought a 2013 pickup a couple years ago. Took the box off this fall and used the needle scaler on the whole back of the frame, etc. It was bad scaly rust. Basically got it down to bare metal, but looked at it and thought that there's no way anything is going to reliably bond to that, and there are so many places I couldn't possible prep, so I decided that the best bet was to apply woolwax to bare metal. So far, it's holding up phenomenally; Even in the wheel wells, after at least several hundred miles @ 80-85MPH on Michigan Highways. Exactly my thoughts about applying anything else on the metal. It would end up peeling and leaving bare metal exposed, taking the woolwax with it, as well as it holding water underneath. Woolwax [ or any lanolin based solution ] solves both those problems.

[@ericcsmith1556]

I’m in Michigan and it sounds like I need to do something similar . Can this be done without having to put the car in the air ?

[@stevec-b6214]

clear and concise exhaustive coverage of what i was looking for! Thanks and subscribed.

[@jestork1]

Thanks for the good video. Nothing like a good thick oil that stays flexible and gets into the seams. I made a spray for my undercoating gun from differential oil, a wax toilet seal and a bit of solvent. I heated it in a water bath so it could blend, mixed it thoroughly and sprayed it in my rockers, door bottoms, and anywhere else it might protect. I placed cardboard anywhere it might drool out (just a little bit). One year and winter later in Canada (salted roads) and the residue is still there and has not washed off (even where hit with the pressure washer). It definitely has slowed the rust on my 2004 Toyota Echo.

[@workingtools2999]

I'm Lazy, I just spray about 3 cans of fluid film underneath each year before winter. I don't brush, wash whatsoever. Just out on ramp and spray. So far I have no rust issues for the past 20 years. 😂

[@kuil]

What is your climate? How bad are your winters/springs?

[@workingtools2999]

@kuil Roads are usually flodded with salt. This is why you see a lot of rust buckets for sale here.

[@charvakkarpe]

Wow, one of the best videos I've seen. Thorough, yet to the point and not rambling. I've gone from POR-15 clear (rust started coming back in a year) to routine underbody pressure washes. Now, maybe I'll switch to lanolin. I guess it's the same concept as products like Boeshield T-9 or CRC Marine Corrosion Inhibitor, but lanolin is more economical than a spray can with a fancy blend of solvents, oils, and waxes.

[@sting1111]

An interesting thing happens in my farm shop when I spray these products. There is a lanolin vapor that also coats my machinery and tractors. Sort of a second hand smoke benefit if I can say.

[@RepairGeek]

That is exactly why I don't spray black products. I have the same phenomenon.

[@gregorymarsh9504]

@@RepairGeek Might it be a worthwhile solution to run a large, high-quality air purifier when spraying? It would suck in and trap lots of that atomized stuff, don't you think?

[@RepairGeek]

@@gregorymarsh9504 open a door. I've tried using the fan on my shop heater to push this vapor outside. It just ended up coating the inside of the heater and the heat exchanger. The first time I started up the heater for the season it filled my shop with smoke.

[@gregorymarsh9504]

@@RepairGeek I can see how that would happen, but to reiterate, I said a filtered air purifier.

[@RepairGeek]

@@gregorymarsh9504 you can try anything. If this purifier is moving a large amount of air you'd have to clean it after every vehicle. Opening a door is free and requires no maintenance or electricity.

[@andyseaward8816]

An old school Italian mechanic I once knew (in London UK) used his own spray-on rustproofing material: a mix of diesel and (old?) engine oil. He had used it on his 30 year old British car, in perfect condition.

[@mustang06gt30]

Excellent video!! Very well explained. You’ve given me the direction to go form my truck. Very much appreciated!!!!!

[@ragdolltrucking]

I spent most of my life in Ontario Canada, the best way to keep a vehicle from rusting is to have it clean and dry (paint is superior to undercoat), the only advantage to oil is that it seeps and you can just spray it everywhere, I had a ford ranger with a fender that had a huge patch of missing paint, in 8 years it hardly had surface rust while the box rockers and frame rusted away even with undercoating, it's very important to wash the mud sand and salt from the underside of a vehicle, which is something nobody ever does, especially people who get their vehicles undercoated since they don't want to wash it away

[@bluethunder1951]

I did this last year with Fluid Film costed me over $100, after one winter of driving wet salted roads the fluid film is gone and the rust reappeared, I’m going to just use old used engine oil from now on, it’s a lot cheaper and will do the same thing.

[@voidisyinyangvoidisyinyang885]

Exactly!! I've read through all the comments on these FF vids - and yours captures the issue - for people driving in serious winter salt - the FF is just not going to last. That's why I prefer Cosmoline and Epoxy paint and phosphoric acid.

[@blauer2551]

Project Farm does a video comparing different protectants and motor oil did not do well. He compared about 6 products under controlled tests.

[@bluethunder1951]

@@blauer2551 after doing the used oil all over the frame and body twice, I live in the countryside so I do a lot of gravel roads and it added a layer dust its working great, there’s a something in the dust that just makes it water proof and so far it’s working I don’t wash it off, only in the wheel wells.

[@dannyboyd1299]

​@@blauer2551and

[@edwinerickson6035]

If you care about the environment, then I would not use motor oil that comes off so easily and is horrible for the environment. Think about it.

[@bobWsterguy]

Thank you very very much for this much-needed video addressing how to undercoat an older slightly rusted car. It is a really good video and answers my past questions.. Thank you very much. Bob C

[@gerrydepp8164]

I like this system particularly because you only have to spray off the crap regularly let it dry and put more lanolin on - it will bond with the old as it does not dry. Great vid Cheers from NZ.

[@EverydayAdventures-l2s]

i recently cane across this channel. This channel is a gem and you’re a great person to learn from.

[@jdboy9]

Great content as always. Thanks for the time you put into your videos. Something I've been doing is adding wheel well liners and mudflaps to help cut down on spray that ultimately washes off the coatings. Seems to help.

[@johnnyray7790]

That's actually an idea. Would it be a good idea to take off the oem splash guards in the wheel wells to be more thorough?

[@jdboy9]

@@johnnyray7790 yeah it does make it easier to get to places on certain vehicles. Some aren't worth the extra time. All depends on application.

[@disgracebook5708]

Superb! I’ve used Fluid Film for years, since 2008, and clean motor oil before that. FF / Surface Prep is very effective, & easy to apply. Once the initial application (getting all the nooks & crannies), yearly re-aplication is quick & easy. I only hit the high splash areas after the initial.

[@eddymcmann7258]

great video and info...

[@SHODUUP]

I coated my brand new 22 4Runner with cosmoline. It is now the end of January in an extremely harsh Canadian winter. The 4 runner has bare, non coated front shock bolts. I usually see these rusted out on vehicles on the lot. Not a spec of rust is to be found on them.

[@CivicTrip]

Thank you so much. I’m now a follower. I have a rust free 2015 Accord with 17k miles that was a garage kept Florida car that’s now in my garage in SWPA. Also picked up a 2015 forester that was from New York and it’s got some surface rust that’s concerning. Now I know how to treat it. You have helped me so much. Thank you.

[@pakkelly]

Good clear explanation for vehicle rust protection. Thanks for teaching us.

[@brandybengtson3]

I spray all my vehicles with surface shield as well but here’s what I do to eliminate the mess: I put the vehicle up on the lift, put down a sheet of plastic on the floor and then tent the entire vehicle with plastic. Kind of a pain to cut and tape around the lift arms but it prevents any and all drifting of the product being sprayed. Although its lanolin based, I wear a quality respirator because I’m inside a confined space. Takes about an hour to tape plastic to the outside of the body and then loosely tape any joints in the plastic. I spray the underside, double check my work and then remove plastic. All done, zero mess anywhere. I even reuse the plastic sheeting for the next vehicle.

[@copperjacket00]

perfect video long , hopefully I pass out from my drinking before the end , not to worry I always check history the next day and watch again.

[@Nas2AQ]

How was the hangover? :P

[@Arouth249]

He forgot to check his history…

[@bkhustler]

that's what they do in Israel pass out from the drinking and never check their history the next day or the day after that.

[@ReynierMartinez]

Wow man thanks, this is probably the most thorough video explanation I've ever come across of how the rust works on the vehicle surfaces. I'm an engineer and some of the things you put into words are things that I inherently knew by my experience working with rust which is why I wasn't a fan of trapping the rust with another product like POR15 or undercoating. I have somewhat older vehicles so even in the visible areas that start rusting, since I don't care to have the pretty surface i'd rather have bare metal treated with some rust converter like Skunk Rust or Rust Kutter that I can keep spraying and see what is happening. I hate the idea of seeing a pretty surface only to know that it's a time bomb because it's rotting out underneath. -- So based on your explanation, your frequency recommendation is essentially once a year treatment, is that accurate? -- Thanks again!

[@RepairGeek]

Generally speaking once a year will work. It depends on the environment that the vehicle lives in. If you're using the vehicle to plow snow and spread salt sooner applications may be required.

[@whatitisnt.]

@@RepairGeekis this undercoating much better than fluid film?

[@RaduMichael]

In light of this video and of all the comments bellow, I am sure that sprayable cavity waxes are the way to go. I also used in the past a thick layer of lithium based vassline and the chassis lasted as new for over 20 years.

[@dirkbergstrom9751]

Wow. EXACTLY and COMPLETELY the info I have hunted for for many years in my quest to beat rust. Coupled with my discovery of EvapoRust, my life feels complete! Subscribed and hit the bell. BTW, got here from Sweet Project Cars vid that lead me to Fluid-Film which then led me to you. Thanks again.

[@smokingstone1141]

Kudos! Fascinating and useful video. I sure wish I had a lift (rather than a gravel driveway). 😀

[@stevanrose7439]

Lol that’s what I have is gravel and it tuff to run a creeper on it. But what I use is the boxes from washer’s and dryer’s. To makes it a lot easier to slide around under your car.

[@joelee2371]

I once found a tough blue plastic sidewall from an above ground pool at a garage sale, 50 years ago. I cut it into 6 foot strips, gave some to friends, and gave away my creeper(I usually never get rid of ANYTHING). Great on floors, dirt or gravel for getting around under cars and parked pontoon boats. It was so cheap it was almost free. When I saw it at the sale I knew immediately what I wanted to do with it; that kind of sudden inspiration seldom comes to me til too late afterward. This one was a success.

[@skultunadesignofsweden3077]

Incredibly good and informative videos from Garage Geek. Even here in Sweden our cars are bathed in lakes of salt during the winter. Wish they had a really good video on a home produced blend that worked as well as Fluid film. Saw in another episode how well cooking oil and vaseline worked. The question is what happens to cooking oil when it starts to oxidize on its own. Will it increase the rust instead?

[@Wildwwill]

Never heard of using cooking oil. I did see someone melting vaseline then mixing in transmission fluid. The mix is poured inside of doors until it begins dripping from drain holes. It gels up filling any areas that may have held water... I drive a tuned 9-3 for a second vehicle in Michigan. Fun little car to drive.

[@TheSpikegreenwood]

Yo brother, I’m over here in Gothenburg 🇸🇪 and I’m trying to save my Impreza WRX. It failed besiktning today due to rust on the sway arms 😢 Did you find any products over here?

[@renefriis-christensen5513]

Hey Nordic dudes, check out the linseed based rustproofing cans from Biltema. Boiled linseed oil is probably the best creeping oil initially when sprayed and then polymerizes into a waxy consistency when 'hardened'. Sort of the best of both worlds: really good creeping ability and also pretty much immune to everything you can throw at it when polymerized - water spray and car washes wont rinse if off, it's even resistent to harsh solvents like gasoline to a degree...

[@AlexBrowningPX]

I live on dirt and gravel roads in Ohio. In my experience fluid film is the best hands down but you have to retreat every single year regardless of what product you use.

[@ampman5357]

I picked up that you’re a “lanolin” within the first 30 seconds. This is my first video that I have seen of yours. Great freaking job. You know your shit no freaking doubt. I’m drinking the cool-aid brother! Subscriber now!

[@ronalddean3630]

Hello, this is really good information and instruction. I recently had an evaluation on my Mercedes 107 vehicle. I got a great report. However, one small body-side moulding was hiding two small rust areas because someone got the bright idea that aftermarket fender trim would look good on it. NOT. The damage is near the front fender, on the passenger side. There is one hole near the back (moulding clip 1), a hole in the center with a cup of some type for the molding pin to go into. Finally by the front, another square hole. This is where the pin sheared off by corrosion. The area is a bit rough but it is hidden behind the moulding. The shop says it is very small (it can grow) and for now, just do something like this. Othewise the entire panel has to come off. I don't want that. So they suggested a light sanding, prime, and painting with the touch up paint. This does not solve the area behind the fender, however. The panels are glued on rather than bolted. I need to find your video where you compared several products because this would be sort of on the surface of the vehicle. My questions: How do you access the wheel well area behind the front tires so you can coat it? Would I just use the 360 tip and spray inside to coat the back side of the lower fender area? Wondering if I would start in the sides of the engine bay because the tube doesn't angle back towards the back side of the fender. I will also look up the body on my vehicle to determine how it was constructed. There is undercoating from the factory in the wheel wells. Finally, that inner lip you mentioned on the wheel wells, I started the cleaning, but there still seems to be crud inside the lip. I think a wire brush with a 90-degree angle or a hairpin angle would work. I didn't have access to a lift so the tires were in the way. I need to see what I can do about that. This isn't a driveway project. I appreciate your time. R

[@lubsey]

“If you guys can’t afford a screwdriver. You got bigger problems than spraying some undercoat” 😂😂😂

[@onceamoth]

Far better than a screwdriver is an old flat file sharpened to a chisel point (about 75°?). Very hard metal and gets under rust and flaky paint rather than skidding over it.

[@simonteelin4642]

Hahaha

[@retiredcatlady]

I am getting this done tomorrow. Geek know how is helpful to this retired RN. My mechanics are going to do this for me❤