The Ultimate Guide to Applying a REAL Undercoating: Surface Shield, Fluid Film, & Woolwax

[@RepairGeek]

Links to the products and the tools in this video: Amber: Surface Shield 5gal: amzn.to/3D3KE9Q Fluid Film 5gal: amzn.to/3D3L3ZU Woolwax 5gal: amzn.to/4g4O22N Black: Surface Shield: amzn.to/41LPMKn Fluid Film: amzn.to/3ONR53y Woolwax: amzn.to/3ZOcWOs Graphite Powder to make your own black: amzn.to/4gt0KZ1 Spray Gun: WW Pro Gun: amzn.to/3VwWVKr Lemmer ($$$): amzn.to/4iupZw4 Aerosol: SS: amzn.to/3BmnTgT Fluid Film: amzn.to/4guYTDj Woolwax: amzn.to/3ZriugK Cavity wand: amzn.to/3ZNi85v Needle Scaler: amzn.to/3Dbnrmo Salt's Gone: amzn.to/3D4FMRP Pump Sprayer: amzn.to/3VuoB2B 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.

[@PissedOff-m2z]

Central Ohio here . Frequent winter washings work as well

[@1984Cutlass2nv]

I bought Surface shield in a 4L pail based on your testing. It appears to be holding up well. However I bought an aerosol can to get a few areas I had missed when the 4L pail was empty and the can plugged up before I half used it. I was extremely careful to use it warm coming from inside the house and shook it up very well before beginning spraying. I got maybe 5 minutes of use before the can plugged up and is unusable now. I will have to get in contact with blaster customer service. Maybe you can help me with that?

[@RepairGeek]

@@1984Cutlass2nv Please contact Blaster customer service at 1-800-858-6605. I appreciate you reaching out to me about it but, me/this channel is not Blaster's customer service. Please contact them if you have issues using the 1-800 number. Thanks.

[@jeet0119]

​​@@RepairGeek, after two or three year, it will get dirty at some point. And then we need to wash it off to apply again. So I just want to ask do we need to clean the inner cavity of chassis. If yes, how to clean the inner cavity? Thank you

[@jonsaircond8520]

As a Texan I'm very glad I don't need this. My 99 Ford looks like new still without ever needing anything. Hats off to you rust belt guys

[@julianh7853]

I just wanted to say thank you so much for all the videos that you've created on this matter. I've been watching your content on and off for a couple of years now. You're a no-nonsense person and it's really apparent from your emphatic delivery and the effort that you put into these videos that you genuine care about helping people with their automotive corrosion woes and do so out of principle and integrity rather than to simply garner KZbin views and revenue. You will save a lot of people a lot of heartache when navigating the minefield of anti-corrosion coatings, paints and treatments. Thanks again and you really deserve all the success that you have attained as a KZbinr.

[@haxguy0]

Echoing the same sentiments

[@Runmaerun]

Undercoated my new 4R with Fluid Film all thanks to the videos you have posted over the years. I don’t have a lift but drove up on ramps and then used the wool wax sprayer with my compressor. I also made a plastic skirt around the bottom so that any overspray stayed contained. Thanks so much for these videos!

[@andrewsamanthamadison3320]

Sprayed my ‘24 F350 with SS. Can’t speak higher of how easy it was. Your videos guided me that way. Thank you!

[@DreamWreckerKyle]

Excellent overview. Having worked with Surface Shield vs. Fluid Film, I can tell you immediately that the smell left behind from Fluid Film for me was an INSTANT dealbreaker. My sense of smell is not even sensitive, but when I sprayed Fluid Film in the door seams and rockers, it was a pretty unbearable couple of months that it took for this smell to fully dissipate. Surface Shield I had zero issues with smell and performance. So if you're on the fence, on the basis of smell alone, Surface Shield is the one to go with.

[@lapin46]

it stinks, but the smell goes away pretty fast.

[@ericvaughn1126]

Appreciate the detailed long format, brother. Mustie1 and James Condon don't apologize for long format videos and neither should you. Quality, detailed content is worth it!

[@thomaswarner3060]

THANK YOU. saw your video years ago. My '15 Silverado has been sprayed with FF for over 7 years now, it's loaded up and filthy underneath but to me it's clean... NO rust. I just wish I'd discovered the power of this product back in the 1980's, That would have saved many vehicles from becoming rusty scrap metal.

[@kenj.8897]

Just did my new 2025 vehicle , I wrapped my vehicle like a Xmas present with visqueen so I didn't have my exterior topside covered with the mist . Surface Shield is the best product, it doesn't wash off

[@waynebinky]

The mist is fine and will wash-off. Extra labour with no real benefit.

[@ManuelsManualTransmission]

In the fall, I did the underside of my old truck with three cans of Fluid Film Black and a fourth can of standard for cavities. We've had a lot slush lately. When walking back to the truck from a Costco trip, I saw the rear differential, glistening and black and protected. Looked great, and I'm excited to hit other vehicles.

[@tsskidoovideos118]

Thank you for taking the time to make these videos. I can attest here in Ohio that a vehicle can go 8-10 years then the cancer is showing everywhere, but it takes only a few years and it starts where you cant see it. Thanks to you I am going to do this to all my vehicles.

[@Nimrodwithagun]

Thanks for this all-in-one video. I'm going to leave my experience with lanolin coatings in case it helps anyone who watches it in the future. I've only done it once as of now. I sprayed wool wax on a low mileage 2003 Tundra I bought in September (2024). It was quite clean for my state, Minnesota, but there was a good bit of rust on the rear end of the frame, rear bumper, and on the leaf springs. It took me 8 aerosol cans to thoroughly coat everything, and it took me 5 hours total over two days. I hit the undercarriage with a wire brush first and then sprayed after. I didn't put the truck on jacks or anything, I just slid around underneath. (You shouldn't do it this way, I will definitely raise it in the future) I used the black cans, and I should note that the spray left stains on the ground under the truck, so if you don't want a shadow on your driveway or garage floor, you should try to cover the ground, or use the clear stuff. Wool Wax definitely has a smell, but it goes away after a day or two. I wore a respirator while spraying. Thanks again for making this and you past videos, they've been very helpful.

[@alannguyen5050]

What an incredible and well written video. You covered EVERYTHING possible. Thank you for this amazing information.

[@Regilliwret]

Fantastic video. Actually answered a couple questions I’ve had about the spraying equipment since I know nothing about sprayers. Been watching these videos for the last few years and have watched all of your rust proofing videos, excellent stuff. I send your videos to friends and family interested in rust proofing because you cover everything in a single playlist (and now a single 77min video). If you’re looking for video ideas, a crash course on lifts would be great (the different types, shop space requirements, things to look for in a lift, walkthrough of how the installation goes and of general usage and maintenance, tips and tricks you’ve learned over the years). I’d like to get one but I don’t know where to start, nor do I know anything about them. Thank you for all the time and effort you have put and will put into these videos.

[@RepairGeek]

Thats a good idea. I'll put it on the list.

[@FreyGrimrod]

So unfortunate the youtube algorithm hates folks skipping around as these chaptered videos are so useful.

[@MNwolftrax]

“Won’t chip, crack, flake, or peel” is KEY! Been using all of these products in various combinations, with Fluid Film the longest, about 10+ years now. All are similar, though I prefer Fluid Film the best simply because I find it sprays well at lower temps and creeps the most. I usually spray/touch up in the Fall (with my original FF gun). Yes, I can heat up Woolwax/SS before I spray, but it still just splatters more, and doesn’t mist or fog areas as well. I have done “combo uses” too, spraying thicker products in high-wear areas like wheel wells, and thinner Fluid Film in more hidden areas. But since I touch up annually anyway, I just don’t feel like buying two products and switching back and forth between them while spraying. Nice video!

[@025451140]

I’ve undercoated a few vehicles with no issues thanks to all the info you provide on your videos Thank you so much!

[@SchulzChris]

Thanks so much for making this video. My current truck is 20 yrs old and is rotted out. Getting ready to buy my next truck and I will be doing this treatment for sure, especially when you look at the extreme costs of new trucks.

[@ConnorBe]

FYI - if you don’t have a compressor to spray undercoating yourself, use a cheap electric paint sprayer. I did my car that way this fall using fluid film. Messy but works great.

[@CZYK]

Outstanding and concise. This is the first winter of coated cars after discovering your channel last summer. I'm excited to get under my vehicles this spring and see how Surface Shield held up.

[@RR-fi4oh]

Thank you for so many years of content/updates.

[@retro_grade]

Great video! I started with Fluid Film years ago, when searching on forums about how to prevent rust on our FJ Cruiser. Then, went to Wool Wax in 2019 after buying a brand new Tacoma....first thing I did when I got it home. I recently used Surface Shield on a Ralliart that I had last season and wanted to drive in the snow (underside was still fairly clean). Your anaysis of the products is spot on. They're all great in their own way, just depends on what your intent is. Wool Wax is EXTREMELY difficult to put on with the sprayer - having a decent compressor and getting it warm is everything. You can find Fluid Film and Surface Shield in cans on clearance from time to time as well - I've snagged Fluid film on clearance at $4 per can at Academy Sports, $6 per can at Home Depot.....Surface Shield at like $7 per can at Autozone. Bought every one they had on the shelf when I find them at that price. The Wool Wax I used on the majority of the FJ Cruiser and Tacoma a couple of seasons ago is still on there. Probably need to refresh it this season, but didn't get around to it. We don't get as much salt here anyways, and I hopefully won't be driving north to the "salted" states much this year.....

[@sbond1963]

One of the best rust proofing videos on the Internet thank you. One comment. I have used various kinds of rust preventatives over the years on multiple vehicles. Your method works best for used vehicles 5+ years old in heavy salt use locations or if rust is showing in areas like the subframe. Don’t forget spraying inside the subframe. New or no rust, cosmoline wax is the way to go. It’s slightly tacky, self heals and creeps in the summer or when it’s hot. In the winter, it hardens and repels sand salt and dirt. So it stays cleaner. Requires less touchups. Two coats can last five years or more depending on conditions. Wax is also a good choice for GM frames dipped in wax from the factory. Unless they are rusted and the wax is gone, then the oil is the way to go.

[@Icutmetal]

Great video! I’m a north East Ohio guy too and have used Blaster products for years. I had great luck with Fluid Film on my 2018 GMC truck that I traded with 176k and it had very little rust. I bought a cheap undercoating gun off eBay for $35 and regulated it to 50-60psi to spray about 3/4 gallon roughly twice per year from new. It was a mess to work underneath that truck, but I NEVER had an issue with corrosion or getting a fastener off. It did seem to soften GM’s frame wax a bit but that was really a non-issue. You’re right about the smell, but it does dissipate. I may look closer at the Blaster products.

[@MrKjetil101]

Fantastic video! Yes, it was long, but so informative. So interesting, so I watched it all in one sitting. I’m absolutely spraying my family’s two cars as soon as possible. Thanks for sharing all this with us👍👍

[@scotw67]

Hands down one of my go to channels. Thx so much for all you do. Your ZR2 video was instrumental in my truck buying decision. 2021 ZR2 bought new in JUL2021; zero issues/40,000 miles.

[@JosephDredd31]

I just bought this month a 2022 GMC (Used of course) and bought the applicator you recommended from your past video's. Along with a gallon of both Surface Shield and Fluid Film. I'm waiting for the weather to where I can use the long wands but I'm afraid I missed the opportunity until spring. I was able to use as many can's (about 6 ) that I could see from underneath because that's all I could do for now. I'm in the salt belt of Western N.Y. I can't tell you enough how grateful I am that I found your channel . Regards Joseph.

[@IRONJUNK625]

I truly appreciate your efforts and information. You have provided me the ability to service my own truck ('20 Colorado 2.8l) and I can't thank you enough!!

[@donlarsenjr2332]

Another great and comprehensive video. Thanks for such great content. You rock.

[@ostekuste3646]

I’ve used Fluidfilm with good results. I can get it locally in spray cans. The smell of FF is basically the actual smell of lanolin, I have an old Irish wool sweater that has a hint of the same smell when it gets rained on. The washout is not necessarily a negative in case I need to clean something up. I’ve sprayed equipment with Fluidfilm that had to be stored outside and after years in the weather they are rust and corrosion free. A lot of local landscape companies spray the underside of their mower decks to keep them from rusting and wet grass doesn’t stick. I’m sure all these products recommended are great, I’ll stay with the one I’m using.

[@lapin46]

I have done the same using wool wax fluid film from cans with long extensions. From a cannister, I use an oil can to squirt it all over the place such as springs, under wheel arches etc. about every year fitting the winter tires. Keeps the corrosion to superficial discoloration on exposed edges.

[@gnawty4662]

Just want to say thank you for making these videos, putting yourself out there, and informing all of us. I am on year two using surface shield. DIY’d it the 2nd time, and looking forward to this one to see where I can improve.

[@richrules]

Super thorough! Tackling my truck now!

[@RepairGeek]

Less repeat questions that way. Just hose it down, you can't screw it up.

[@jaycarroll9058]

Thank you for all your previous and this comprehensive follow-up.

[@derekbonevelle]

Took your advice and went with Surface Shield on my new 2025 Civic Sport. Took me probably 6 hours but most of that was taking off the plastic shields under the car. It was well worth it, though. Appreciate you!

[@zacharyquinn3676]

Just got a ‘25 civic myself. Did you spray into any holes in the unibody, or just the undercarriage? Do the felted panels absorb the surface shield?

[@kenj.8897]

​@@zacharyquinn3676you have to remove the panels

[@TK-ff5kc]

My wife just bought a 3 year old Outback from central Indiana, we live in Michigan. The underside of the car looked brand new possibly from seeing little salt. We drove it home to Michigan on a nice dry day, so I coated both front and rear suspension as well as any exposed paint with Blaster Surface Shield. Harbor freight had the spray at 8.99 a can.

[@cryptoglenn]

This is the most in-depth video on the subject. I need to do my vehicle the shop I took it to did not get as detailed as I would have liked.

[@francoutah]

Thanks, Dude. Extremely valuable information. This is the only video any DIYer needs. Fluid Film saved my 1st gen Tacoma frame. *Warning to anyone who is considering using phosphoric acid: Wear rain gear or a hazmat suit. The concentrated acid can give you 3td degree burns. Also, it eats through concrete. "Safety 1st"

[@MedicCamba]

Great breakdown! Saw your videos about 2 years ago and like this one to save when I do my truck this year!

[@jerrytroup3796]

Nice video. Maybe I'll play this on repeat in our waiting room.

[@arnaudn.5675]

Thanks for the video ! I'm going to get an old lada Niva in a couple weeks, not rust free but in pretty good shape and seeing your proof video about the effectiveness of lanolin based products, I'm definitely hyped to try it to keep it from turning into a pile of soviet rust in a couple decades.

[@riceburner4747]

Excellent, EXCELLENT, video. I KNOW u hate doing undercoating videos & feel burnt out doing them, but I've watched all your videos over & over & will with this one TOO. Thank u for doing a CAR. I have mine done (hybrid) every Spring, but shoot spots myself during the rest of the year with cans. I STILL learned alot from this video. I reside in your neighborly state of PA, had a used 97 Camry that would STILL be on the road if it wasn't for rust. 👍🖖🇺🇸

[@BrettBeckham]

Great video! I agree to spray the GM wax frame. Some product should creep behind flakey pieces of the original wax coating. As the original wax coating does flake off, more lanolin product will just need to be applied as well.

[@davidm.8309]

Thank you! Best video I have seen on this, especially the details on getting into cavities like the rear wheel arches. With the price of cars now everyone needs to be aware of these products and using them. I used rattle cans of fluid film with the long flexible wand which was excellent in getting into tight areas and spraying a fine mist in multiple directions.

[@FRIVZ306]

Awesome video!!! I already coated my underbody for the year with a darn brush and aerosol can took me a damn long time. Looking forward to upgrading next year!! Thank you

[@Trad-Am]

2 years ago, I did my 2002 CCSB LB7 2500HD duramax. For removing rust, by far the fastest was a braided wire wheel. Now I did a bunch of washing, and degreasing, then used a dust converted. The reason, is I didn't want a slimy frame, and suspension, I may need to service, covered in lanolin. Now I did use lanolin inside all the body panels. But the frame, axles, and suspension, all got RP342 Black cosmoline. I haul my enclosed snomobile trailer over the cascade mountain passes, and it's held up really well, and haven't had to touch it up yet. Be warned though, cosmoline needs paint thinner, or diesel to remove overspray. If you're willing to put in the time, it's less maintenance.

[@TheCaperfish]

been doing this to my vehicles for years , any new vehicle ya want to do its first coat in the peak of the summer , the heat and driving at highway speeds will migrate the FF into all the seams the best , then hit it again in oct before they start laying salt . , ya need to get that first 2 coats on before salt gets into the seams , then I do it every October after that with touch ups on high splash areas every oil change , the hoist makes it a dream to do .

[@flapjackson6077]

Dude, been watching your vids for the last three years. Your undercoating vids are a true service! This video is a perfect compendium to all your previous videos. I live in western PA, and recently I used FF on my truck. 1-1/4 gallons was all I needed for my F250. Surface Shield is about 70-80 bucks a gallon versus Fluid Film at around 50. I think I’ll give SS a shot next fall. It seems to have the creeping ability of FF but with the ability to set like WW. I reckon it’s the formula ratio of solvent to lanolin, but I’m intrigued! Great job! 🙏🏻👍

[@RepairGeek]

No solvents. 😎

[@flapjackson6077]

@@RepairGeek 😂 Guilty as charged! I should’ve given more thought to that, as you’ve stated that in previous Vids. What I should’ve said is that I suspect there’s a proprietary formulation with SS that allows it to apply or initially run thin, but which thickens up. I’m thinking maybe it has to do with manipulating the thixotropic properties of the formulation. Or giving it a good stirring to thin it out might be the key. Introducing air when mixing? Lol 👍

[@RepairGeek]

​@flapjackson6077 it's the thixotropics and SS has some ingredients the others don't.

[@aedanhickey5264]

Just bought a 1993 f150 from MN. It has rust but I plan on needling it down then coating it in woolwax so it should stop it from rusting in the future!

[@revkev5098]

Thanks for the video. I've been following along for years. I am one of the guys who coats my vehicles on ramps or jack stands, and really started doing this because of your videos and SMA. I watched this video from start to end over the course of a few sessions, and learned a few tips. Thank you! Edit: I know you said you don't plan to do any more update videos on the Colorado, but I would watch it! But I hear where you're coming from - it's boring to shoot the same video, and if it's not getting the views, it's not worth the time.

[@RepairGeek]

It gets views for about 3 weeks then just flatlines.

[@dtmtransportationllc8742]

I just got done undercoating my Jeep with Fluid Film in a can took 9 cans. I purchased a gallon of Surface Shield, black graphite powder and phosphoric acid (Milk Stone Remover) I opened the gallon added half a cup of graphite powder and then I topped off the entire gallon container with phosphoric acid and mixed it up really good. My thought was that phosphoric acid is commonly used to treat rust and turn it into iron phosphate and then Surface Shield would protect it and they would work together at the same time. Unfortunately there was a chemical reaction and it completely destroyed the whole gallon. It caused it to expand pretty rapidly and changed the consistency and destroyed the Surface Shield. You might want to do a video showing this experiment so people don't copy my idea.

[@bubbatennessee7531]

Thanks, you made a believer out of me. FYI - regarding the air compressor , I just tried, one can get away with a 4-gal portable, but has to be a fast-recovery, oiled type, like the dual-tank Rigid, using a generic woolwax type sprayer. A 2-gal oil-free pancake won't do.

[@miguelmartellf]

Hi! Great video!! I decided to do this to my pick up truck around a month ago. My first concern when spraying was, “should I spray the potential leaking parts?”(diffs, transfer case, trans, and engine). I concluded that might not be a good idea specially because I’m using the black fluid film. Having gooey stuff over seals or gaskets might make it a little hard to spot thinner lubricity oil. Just something to consider. Other than that great video once again!

[@can-cruiser]

Thanks for posting this great video. I tried all of these products on my vehicles. I found the smell of Fluid Film UNBEARABLE. Specially after storing the vehicle back in my garage.

[@jasoncharles6980]

Perfect wrap up video to the series. All your time and effort on everything undercoating is much appreciated. There’s two products I’m anxiously awaiting Project Farm to do. Surface Shield and the new Valvoline Restore & Protect as I’ve gone exclusively to both. Thanks again.

[@RepairGeek]

I have restore/protect on my idea board. It's going to take a year probably to get enough miles to see any change.

[@jasoncharles6980]

@ I’m happy to hear that. You and Project Farm are the best on KZbin IMO. The effort put in is unmatched.

[@bw6078]

Thank you for all the information you shared. I really appreciated your information regarding the air pressure needed for application in regard to atomization of the product. All the best.

[@jamesmarlar696]

So I have used Surface shield for couple years and I have used on three or more vehicles each year. I do have to heat in a crock pot the surface shield to spray. I do love the coverage and protection achieved and as far as individual cans there is a huge difference as it won’t stay deep enough in frame and inside body panels as the sprayer with hose extension but whatever you decide just do it

[@landscapingspecialist]

Yeah the wands are great to use for hard to reach areas. I bought 2 of those kits. They have great products all around. I’d recommend them as well. Been using the wool wax products about 10 years.

[@toddbowser9415]

When I undercoat, I use a torpedo heater faced on my undercarriage to get it good & hot. This is a VERY IMPORTANT step!! If the metal is hot your solvent whatever you choose to use will stick MUCH BETTER. I also respectfully disagree with you on using undercoating on the bottom side. I have a 2005 Subaru Legacy & I use Rusfree rubberized undercoating on the underside with everything good & HOT, then I use a lanolin product in the jams, inside the rockers, doors,& quarter panels, & all the small holes on the underside. I did this Subee when I first got it,& it looks as good as when I first bought it! It will literally be the 1st vehicle I’ve EVER owned that the drivetrain will fail before the body will. Oh & I live in the rustbelt of western PA

[@DearSX]

Love this, thanks! Always like updates to this process :)

[@21jimmyo]

I've been using FF and now SS for about four years now. I spilt the cost of the 5 gal bucket with a friend of mine. I have a lift and compressor, and we spray all our cars. Now when I pull the plugs in the rockers, there's still product inside. The only areas that need a heavy application are the areas that get splashed the most.

[@peterc6738]

Fantastic video. Thank you very much for all the great information you've provided. Keep up the great work.👍

[@hammerfest316]

Another awesome undercoating video. Thank you

[@landscapingspecialist]

Perfect write up for undercoating nerds like myself. Nice job. 🙌🏻

[@rickyn1858]

Great how to video!!!!I agree with the 3 Lanolin products you are using are great!... I will say the blaster is cheaper in Aerosol cans vs fluid film

[@northerntoyota7584]

Great video, I’m in Nova Scotia where vehicles rust just sitting outside. I do everything like you illustrated, even have multiple spray guns to do just as you showed. It is 100% necessary if you want your vehicle to stay rust free. I laugh when people say use 2-3 spray cans to do your 1/2 ton truck. I use rust check coat and protect (not the red can you tested awhile back) also use kleen Flo honey goo in areas prone to wash off as is stays on like glue. You should review this product. I’ve had very good results, only thing is I can’t find it in bulk.

[@RepairGeek]

Being an American, I can't get my hands on it. Honey Goo only sells in Canada.

[@northerntoyota7584]

@ I didn’t know that, it tacks up like a glue almost. Put it on axels and leading side of control arms, running board brackets etc. hasn’t washed off in several years. fluid film is $20/can up here and washes off similar to rust check coat and protect in these areas I mentioned.

[@LinusCloudbuster]

Thanks for your diligence on this subject, just coated the underside of my Toyota Tundra last week. It was nearly two hours, a gallon and a half of product, and I still missed quite a few areas.

[@johncraig406]

Thank you, you steered me onto Fluid Film a long long time ago, and I talk it up to my friends and link to your videos every chance that I get.... but, just yesterday, I got a Copyright Violation notice from KZbin because I posted up a YT video on FB over 5 years ago.... if I get another Violation, they will take my personal YT channel down..... I am very "popular", 🤑 almost 20 short 30 second videos...

[@bigjobford1956]

Thanks to you and your videos. I bought surface shield and the gun you recommended now all I gotta do is getter done.

[@Cire3PC]

Just purchased my first kit. Great video ! Sick of my expeditions rotting the bottom out.

[@landscapingspecialist]

You can use an aquarium water heater to heat the product in the bucket too. I just put a small space heater on the bucket though. Just don’t put the bottles too close to the heater for too long. I had a guy forget one and melted one last year.

[@Foche_T._Schitt]

I tend to use the hoses regardless to keep Lactic acid from building up in my arms. It's easier to hold the hose above your head.

[@landscapingspecialist]

I use wool wax. Straw color. Spray the trucks, spreaders and plows yearly. Works well. Go through about 5 gallons a year on our 5 trucks and 4 plows. The wool wax smells like stink bugs to me. I could care less as I wear a respirator when applying it. Oh and yes, I have to heat the wool wax w small space heater if we apply it below about 40°F.

[@rarespetrusamartean5433]

also, thank you if I ever make a good living I will support each and every one of the channels like yours that helped me save probably thousands of $$$ by now.

[@kemsss4103]

Looking from France .. Very nice video and nice chanel thx for sharing your experience !

[@rosehebert7989]

Thanks for your videos they are informative and helpful and I know I get more info every time I watch Thank you

[@on-site4094]

All I can say is great info & education thanks for sharing 👍 u won’t be fired you’ll be promoted for marketing the product

[@brucekrolikowski2882]

Thank you, your videos are the best on this subject.

[@termn8er331]

Thank you so much! I can't stand rust trashing my cars. I just ordered some products.

[@Bloodbain88]

If you think woolwax smells okay, you should try NHoil. That stuff smells so good I would walk past my truck just so I could smell it. And thats crazy. I've always used Fluid Film with excellent results. I've coated many many cars and trucks. After the second coat, it's so thick on there nothing is getting through it. But I recently tried NHoil. The NHoil creeps like nothing else I've used, but it seems to wash off easier than FF. I think I might try some of that surface shield next go around.

[@RepairGeek]

I tested NH Oil 5 years ago. It didn't hold up as well as what I have featured here.

[@michaelotoole1807]

thank you for this instruction manual. Very well done.

[@rorikolson]

This is good enough content that I'd almost expect to have to pay for it! Seriously, thanks. I do have a couple questions though. First, I've been spraying chain and bar oil, used motor oil, gear oil, etc under my vehicles for years with Graco airless paint sprayers. What is the viscosity of these lanolin products compared to paint or oil? If they're too thick to spray as is, can I heat them up and get them thin enough to be sprayed with the airless sprayer? Next, dirt. What I've done is spray a mostly clean undercarriage, then go drive on gravel/dirt. Then spray more, then go drive out in the country again. The dirt and oil builds up a coating that won't really wash off. If I didn't do that, the oil would wash off pretty quickly. I'm guessing the biggest difference with the lanolin products is because they're thicker, they wash off a lot less on their own, and won't soak into a light coating of existing dirt like oil, or if they will soak in, it'll take more time and product to do it that way? But, you showed exactly what I expected, coating over dirt that had stuck to previously applied lanolin continues to build up the coating more and more, further increasing washoff resistance.

[@dragop5698]

Good video, see your using Stanadyne diesel fuel conditioner... good choice, I use it all the time too for 20 years now

[@RepairGeek]

Your opinion is going to change soon. Mine did. Lake Speed JR and I are working on something 😉

[@dragop5698]

@@RepairGeek Ok I'll wait for your report

[@dzack9169]

Hey i appreciate your channel and your down to earth honesty... I have a couple of questions about using fluid film.... i have a 2024 chevy 2500hd that has a protective wax coating on the frame from the factory, what do you recommend? ...leaving the frame till it starts to show signs of rust or just coat with ff right away? (i was told fluid film will melt the wax coating) And what do you recommend when you want to re-coat a truck that has been coated with ff and that coating is totally soaked up with dust and dirt.... should I get the pressure washer out and spend a lot of time trying to get as much of the dirt caked fluid film off before i re-coat with ff?? or should I just do a quick rinse, let it dry, then re-coat right over all that dirty old coating?? thanks!!

[@landscapingspecialist]

We have one of those pressure washer rigs that have multiple nozzles and slide on wheels for getting underneath truck washing salt and dirt off before we coat. Helps to have a hotsy. Never used salts gone product, gonna look into that.

[@landscapingspecialist]

I have also found that the straw color collects road grime and turns black fairly quickly anyway. I’ve never tried the black. Have gone through probably 10 buckets over the years. Always just gone w the straw color.

[@erichimes3062]

Every time the word “guys” is said, drink a shot! 🤪 No, but for real: I’ve watched your videos and used the techniques to apply fluid film on my two 90s Jeep XJs annually in salty northern Indiana for 7years straight. Just sprayed my new utility trailer with FF on metal frame and wood sides. Capped off the end grain on the 2x4s with melted toilet ring wax, then heated with a torch. 🤘

[@jerrytroup3796]

The gm waxed frames started circa 2001. Our 2008 shop truck looks like brand new underneath. Treated the wax coating with woolwax years ago

[@RepairGeek]

Noted. I was thinking about this TSB that I'm sure you've seen listing 2011: static.nhtsa.gov/odi/tsbs/2019/MC-10169340-9999.pdf

[@Jeff-xn1ew]

Thanks again for this video. I just rewatched it because I’m going to do my 06 Honda Ridgeline that has a good frame still. I’m just hoping they come out with a hose for the cans. I like the wool wax sprayer but I don’t think the hose will fit in the doors unless I take the panels off.

[@bobjackson7516]

Great video man, thank you very much!

[@robertolallave1541]

Thank you so much. I'm definitely going to do !!!

[@DK-vx1zc]

Great coverage

[@seanmclaughlin7415]

Amsoil MP HD metal shield is the best by far. Second is PB Blaster Surface Shield. Water is the bast salt removal system. The best thing to do I found out is to spray the underside of your vehicle after spring, before Summer. Why? Because all the particulate in the air adheres to the oil and acts as a tackifier. It will stay on for a very long time.

[@barrymccaulkiner7092]

I just bought a brand new car and live in the rust belt. Thank you for these videos. Is it ever too soon to undercoat?

[@RepairGeek]

No

[@thecoolestever1]

What are the differences between the spray cans and bulk? Wash off resistance, protection, thickness, etc...

[@jllupin33]

Wouldn’t the fluid film be bad hitting belts in engine bay causing belt slippage? That was my only concern on spraying in engine bay, otherwise I plan to do everything else on my truck 😊

[@lapin46]

Ace video. Cars should eventually fail mechanically and not from rust.

[@mercedesmaintenance.6339]

Great video! Thank you for all the info.

[@Ram14250]

Excellent Video! Thank you! 😊

[@TheGhostrose]

Have you ever had problems with rubber suspension components after spraying?

[@RepairGeek]

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