HOW TO REMOVE PAINT RASH FROM MODEL CARS

[@danielharry1075]

I'm a collector and we did an extensive study on this as little to no real data is available on this matter. For the study we used a lot of models of various makers and this is our final findings. Paint rash/micro bubling is the effect of paint oxcidation and the main reasons are: oxygen, UV light and heat. These three factors combined with time is the result. Worth noting that various paints of different makers react differently and even the colour play part. Red, black(dark colours) and even white rash more easily. Silver tend to be very resistant. Kyosho and Hotwheels & Elite models biggest culprits and resin models don't show rash. Cheaper models like Maisto and Bburago less likely to rash. AutoArt the least likely metal body models to show rash.

[@oscarcsar]

Great tutorial mate. I've been collecting die cast models since more than twenty years and I've seen many ways of how paint rash invades models and I have to say that sometimes paint rash is a matter of paint but some other times is a matter of metal and it's impossible to get rid of that defect because that rash is not from the paint it comes from metal and if you try to fix it with sand paper and polish compounds metal will come up and the only way to fix it is to strip paint and repaint the part. That's what happened in this case with those white silver dots that have came up after sanding.

[@ROBSMODELCARS]

True, I have repainted quite a few over the years as stripping it off and repainting gives the best results, but some collectors aren't confident enough to strip a model and repaint it. So this gives them a chance to get the model looking a lot better without going down the painting path.

[@pieromonteverde3169]

Great video Rob. A great followup would be a video about matching the existing paint to repaint the part when the sanding takes too much of the original paint.

[@rahulkalra9492]

Thank you Rob, even though, this may seem stupidly simple to some, and seeing the step-by-step is priceless. In most cases, if one screws up, then it ruins the model!

[@A_Eichler]

Paint rash repair 101! Fantastic instruction, Rob! 1:18 collectors everywhere get lessons like this for free?! I feel like my student debt just went up! Can't find this kind of specialised info anywhere else!

[@LTCTTM]

Rob you are the absolute best! Thanks so much mate!!!

[@fredswork]

Wow! What a great video. Rob does a great job of explaining things. I’ve got a bunch of cars with rash on them. This is a huge help.

[@vtech5635]

Much appreciate for your guidance mate! I spent 8hrs to restore my AUTOART CGT, there’s bit of tiny scratches but overall it looks stunning as it looks shiny!

[@toyrav64]

So glad I found your channel.....so very helpful. Thanks for posting.

[@sheeplegang7856]

Really good tutorial! I have some Ferraris that need this treatment

[@raghubirsingh155]

Thanks Rob I tried it on my carrera gt it worked

[@ossi779]

I have used wet 2000 grit then machine polished with Sonax Cutmax (cutting pad) and Sonax Perfect finish (finish pad) and looks brand new, no sign of paint rash or no scratches. Looks awesome

[@edition_sixscalediecastmod6084]

A fantastic guide. End result looks great!

[@matthewhicks6531]

Great video!👍 I have a 1/34 First Gear tow truck that has paint rash on the side of the tow bed. I’m going to get the items needed and try your method.

[@ROBSMODELCARS]

Great, but don't start with to aggressive sand paper, start with 3000 grit onwards, if that does not remove, then you can go back and use a rougher sand paper. Good luck

[@JorgeOliveira-ow5uu]

Thanks for sharing your expertise, great video! 5*

[@ROBSMODELCARS]

Glad it was helpful!

[@TheBrian973]

Great! Thanks 4 video. I was evaluating with a friend that every brand has a type painting on its own. pay attention when you happen to perform this intervention on the ferrari kyosho models, as the paint has a much finer thickness than the hot wheels and you would immediately get to the bottom, which will have to be repainted. This may be a major problem for those haven’t experience in disassembly and painting

[@GeneralFrancisXHummel]

My model cars are displayed inside airtight cabinets and even so, some experience this cancer and some do not (I have Maistos perfect and a Kyosho 250GTO with this problem) Thx for the video!

[@diecastchannelminiaturasde2357]

Great job! I’ll try this on some model cars I have with the same issue! Thanks for sharing, pal!

[@freddycremers3734]

Hi Rob, my model, a Ford Mustang Super Stallion, has paint cracks in the white part on the right front fender, this can be solved by sanding with wet sandpaper (3000) and polishing afterwards.

[@JxT1957]

Just got a 1979 black Trans Am still new in the box after 20 years and has some paint rash but can mainly just notice it in bright light. i was wondering if it will get worse quickly or stay the same for a long period of time.

[@brk8841]

Great job thanks. But i tried this on the front hood of my car. Used it for the half of it but when i finished it. I still see all the scratches because of the sanding and also didnt get that old shiny gloss look. Where i did it wrong?

[@jackaydostan]

I have read that the old budget models from Burago are cheap toys and can't compete with the higher end models made by companies such as Kyosho or Hot Wheels yet the Ferrari F40 models and Porsche 911 models i own by the original Burago don't suffer from paint rash or diecast corrosion and those original F40 models are close to being 30yrs old, when compared to Kyosho, almost every F40 model has paint rash, seems to me that the Italian made Burago's are of higher quality diecast metal and better made.

[@ROBSMODELCARS]

Paint rash is caused by a contamination on the metal surface before the model is painted, and then it blisters though over time. This can happen to any model that is poorly prepared prior to painting.

[@secretm.5896]

But since it comes from UNDER the paint, I think that it would eventually come back again with time, cuz the source is not gone. I think that the only real way of getting rid of it is removing the original paint completely until you see the bare metal, then prime it and paint it with an airbrush after you've mixed your color to perfection. After that you must add a nice coat of clearcoat and voilà!

[@MrNew122]

Your method is correct, but it's also very complicated, especially for people who are not painting experts. First, it's almost impossible to match the paint perfectly because some color fading occurs on the model over a period of time. Second, some model cars have pearl, or metal flake finishes which makes the matching process even more difficult. Taking the model apart and repainting it, is the ultimate solution, but taking apart a $200 Kyosho or a BBR that may have 1,500 pieces, is a serious risk for someone who does not have experience.

[@ROBSMODELCARS]

Exactly, this method is to make the model look better than it does covered in rash, and most people are able to make this method work. But fully repainting a model is the best way to deal with rash and to have a perfect paint finish, not everyone can do that though.

[@secretm.5896]

@@ROBSMODELCARS yes indeed, it's so frustrating to invest in a model and see it have a rash :/ even more frustrating with high end models..!

[@secretm.5896]

@@MrNew122 yes never said it was easy, just a permanent solution. Or get rid of the model and buy another one over the net.

[@waynel879]

Thanks for the reply and advice...

[@waynel879]

Fantastic tutorial. Just bought an older Danbury mint 1:16 scale, 1929 CORD. Nice large model, great detail. Has paint rash on hood. I will try your process. Hope it works as well. Thought it was unrepairable. Thanks a million. Please tell me were to get the compounds and polishes. Thanks

[@ROBSMODELCARS]

I bought the Tamiya polish's on ebay and got the sand paper from my local hardware store. Just try to remove the rash with a fine sandpaper first, only use the very coarse paper as a last resort but remember that some rash has lifted up from the metal, so it is possible to go through the paint which will reveal the base metal. In which case paint repair will be necessary

[@lien-chinwei4815]

Hello, Thank you for sharing this informative video. Is there any reason the Ferrari horse logo is not protected but sanded away assuming that only paint should be fixed and the Ferrari horse logo was fine before sanding? Thank you

[@ROBSMODELCARS]

It was easier to sand the entire hood and just replace the Ferrari logo

[@lien-chinwei4815]

@@ROBSMODELCARS Thank you for pointing out that. is there any vidoe showing how you replace the Ferrari logo? Thank you

[@awwsum9116]

Rob Love your videos!! Will you ever be customizing your Top Speed Pagani Zonda? I am interested in getting one and removing the wheels to try and paint them a more correct color. Just curious how difficult it would be to remove the wheels.

[@ROBSMODELCARS]

Yes, the Topspeed Zonda has been completely rebuilt into a Zonda GR race car. I have been posting updates on my Facebook page - RobsModelCars, and also a full build dairy on www.DiecastXchange.com Wheels are easy to remove, turn the model upside down and unscrew the floor. Remove the floor from the body and you will see that both wheels are attached by a metal rod. Mine just pulled out from the body. Brakes are just sitting behind the wheel, slide them both back on the metal rod to the center of the metal rod. Cover them when repainting the wheels, then uncover them and re assemble them in reverse of how you removed them.

[@awwsum9116]

@@ROBSMODELCARS Thanks! I will check it out.

[@raihanhassan1]

would you recommend stripping the parts of the model to make it easier to correct

[@CCWorld2010]

My model has the same rashes but would this method work on a metallic silver color? Thanks!

[@ROBSMODELCARS]

You have to be very careful doing this method on model cars. It is a 50/50 if it will work, if it doesn't, it will go through the paint and the model WILL need to be repainted. Most model car paint does NOT have a clear coat over the top, so once you start sanding through the layers, the metallic will be ruined. Do NOT do this on metallic paint!

[@AdamSmith-fe9jf]

Another great video, Rob. One thing I don’t quite get is when you sand the panel, why does the clear not need to be reapplied? How do you go straight to polishing the body unless there is still clear, but for Hot Wheels especially, I know they don’t use much clear from the factory in the way you use 3-4 coats for your own custom models. So, wouldn’t the clear have been sanded right through, or was there some left? Also, you mentioned you’re not being thorough for sake of keeping the video brief, yet still the finish came out like new. Had you been more thorough and spent additional time, could you have yielded a better result with more shine and depth, or is the shine capped after certain amount of polishing? Could you also achieve more luster by lightly using a Dremel with buffing wheel?

[@ROBSMODELCARS]

They paint these models in a one coat system, meaning the red color is a gloss finish, so when you sand them down, you bring the gloss level back by polishing. When I paint my custom models, I use a basecoat color followed by a clearcoat, if i sanded through the clear, and tried to polish the basecoat, it would not come back shiny. More time spent on the part would have got some of the rash I missed on the edge of the hood. But a little more polishing in each step would give a better shine.

[@AdamSmith-fe9jf]

ROBS MODEL CARS Now, I completely understand. Thank you for your kind reply.

[@SYF2000]

I’m gonna try this out on my models but I’m afraid it might take the paint off. Assuming that the same model faces bubbling again, will the paint eventually come off after repeated sanding?

[@ROBSMODELCARS]

The thickness of the paint and how badly it is bubbling will depend on the results of this method. Be aware that if you have to keep sanding to remove the bubbling, you may go straight through the paint and hit raw metal. Try this first on an area that is not as noticeable, like a lower side or rear, rather than a hood or a roof. Some models are just not savable and need to be repainted. Good luck

[@SYF2000]

ROBS MODEL CARS thanks!

[@ramziramli2783]

thanks for the tutorials rob..i have few models with these rash paint issue..hope it will turn out nicely when its done..is this compound suitable for resin model as well?

[@ROBSMODELCARS]

No problem mate, just remember that the paint thickness on all models is unknown, so try first on a lower panel or so and see how it goes. Should be similar between diecast and resin, but maybe a little thinner on resin but resin don't have rash so no need to sand them, but you can polish them with these Tamiya polishing compounds. Just test areas and use your judgement

[@biboysitoy5133]

Thank you for the video

[@AlbertW89]

Thanks Rob your technique really helped me alot! May i ask you how to remove little scratches or swirl on the surface?? Could i use meguiars or turtlewax?

[@ROBSMODELCARS]

No worries, yes, you could use either the Tamiya polishing compounds or automotive polishes. Just give them a go to see which gives the best results.

[@SCDC-Channel]

thank you!!

[@redlinefiction_1]

Hi Rob, what brand of touch-up paint do you use? Cheers mate!

[@adriansoonx33]

Hi sir does it work on Metallic paint cars ?

[@zewise1]

Where do you get replacement decals? Ferrari emblem on the hood? Thank you

[@fingerprints2983]

How to avoid paint rash? Keep your models in dry and warm room, without exposure of sunlight! Big No-No is very humid and cold rooms!

[@grandcalifornia8410]

This isn’t always the reason for paint rash but you are generally right.

[@szs114]

Do you know how to prevent paint rash happens, does desiccant works?

[@michab.3076]

You are The best!⭐️⭐️⭐️⭐️⭐️

[@jdcollection2694]

Thanks for sharing.

[@claudefiset262]

allo, i tried your instructions and the result is slightly less glossy than the original. should i just add a clear glossy finish or is it because i missed a step? tks!

[@ThePreisman]

It's been a few years, how is the paint holding up? Does the rash come back?

[@ROBSMODELCARS]

Good, rash has not come back

[@TheWretchedWorld]

i cant really get my head around paint rash, my hotwheels 360 non elite version has 0 paint rash and i have not been careful with it, its probably 20 years old

[@fingerprints2983]

Rob, have you tried using micro-mesh cloths to remove paint rash? It is less extreme that actual sanding paper.

[@ROBSMODELCARS]

No I haven't. I use what is available to me, but this 360 model had very bad rash on the hood which is why I used this technique

[@margaretloo6211]

Hi I followed your tutorial did the same thing but unfortunately it is not as shiny as yours and can see that surface it has been scratched before. What happened?

[@adycoke2]

after this procedure,from your experience,do you think the rash will return?thx

[@ROBSMODELCARS]

No, I don't think so

[@spiry1970]

Sorry but paint rash will return... are air bobbles or dust of the metal

[@ryanhardianto7433]

My autoart maybach has a lot of rashes all over, do you think the paint is too thin for me to do this?

[@pkasra]

But how to deal with paint scratches in models? I have few ones with minor but noticeable scratches on the body paint and I would like to remove them. My models are mixture of composites, diecast, and resin. PS: Very useful tutorial! I'm going to try this on my F430.

[@ossi779]

Try sonax perfect finish and a clean microfibre. Use circular motions until the scratch is gone

[@juandeancarloomamalin2600]

is it safe for decals?

[@djturk254]

where do you get the new ferrari emblems ?

[@ROBSMODELCARS]

BBR sells them occasionally on their website. www.BBRmodelstore.com

[@melwincliffchandra402]

is it good if i change with meguiars compound?

[@ROBSMODELCARS]

You could try that, but I have not used that. I only use Tamiya as it is designed for model cars

[@ProjectHomulust]

What's causing these paint rashes to appear on diecast models?

[@ROBSMODELCARS]

Most people think it is dirty metal or contamination on the metal before the model is painted. It slowly appears over time

[@ProjectHomulust]

@@ROBSMODELCARS Is it okay if I just skip ahead to the "Finish" Polishing Compound when polishing the car without the "Gloss" and "Coarse"?

[@luxuryelegance7319]

Wow its looks almost brand new

[@Madlabmodels]

Good video

[@MatthewGalmes]

Can you make a video on removing a glue stain on a model?

[@Van_Tuijl]

Hai Rob How is the brand named ( the 3 compounds ) To polish. Maybe i can found it in my country ?

[@ROBSMODELCARS]

Tamiya Polishing Compounds, Course (red cap) Fine (blue cap) Finish (white cap)

[@Van_Tuijl]

Thanks Rob 👍🏻👍🏻

[@71leabor]

Congratulations ! Great job !!! Please spanish sub.

[@SergiuMilu]

Do you think it will work using a dremel?

[@ROBSMODELCARS]

You can polish with a dremel, just keep the speed down. Not to fast and use a cloth polishing wheel and polishing compound

[@adycoke2]

did the paint rash evolve over time and spread all over the surface of a modell?

[@ROBSMODELCARS]

Yes, it evolves over time from under the paint. Some say it is contamination on the metal that is painted over, then over time, it comes through the paint and wrinkles or blisters the paint.

[@kylesoler4139]

Does it work with Metallic paint surfaces?

[@ROBSMODELCARS]

As long as there is a clear coat over the metallic.

[@08DJTUNING]

Can paint rash be caused by cleaning model with wet cloth?

[@ROBSMODELCARS]

Not at all, paint rash is caused by contaminated metal before it is painted, that is why it blisters up from underneath the paint

[@08DJTUNING]

Thanks for reply :)

[@SmartFusionBand]

Why old Bburagos don't get paint rush?

[@ROBSMODELCARS]

Unsure on why some models get it, and some don't.

[@kamikazekrew3873]

Alberto, I was just about to post that question as well. Great job Rob! Cheers!!!

[@AlkXperience]

The old ones were actually made in Italy, new ones are made in China as most of the others.

[@LiterallyADHD]

I’m gonna go out and buy a cheap model so I can practice this before I attempt messing with my Kyosho 365GTB/4

[@vtech5635]

It would be better if you use, 2000 grits, 3000 grits, and 6000 grits to sand the paint rash, otherwise it will easily left scratches easily.

[@ROBSMODELCARS]

I went rougher on this model as the paint rash was really bad, 2000 grit did not cut through the rash.

[@vtech5635]

@@ROBSMODELCARS Your method is quite good actually, but some beginners like me, may leave scratches.

[@임학용-v5l]

In case of decal model, is the decal erased?

[@ROBSMODELCARS]

Of coarse, if you sand over a decal, you will sand the decal away too. Sand around the decal.

[@임학용-v5l]

@@ROBSMODELCARS Thank you Do you think this is a paint trouble or zinc rash ?

[@luxuryelegance7319]

And first😂😛

[@olegooo6708]

Hello. But why rash appears?

[@ROBSMODELCARS]

Some say it is contamination on the bare metal prior to be painted, but I really don't have an accurate answer for you.

[@olegooo6708]

@@ROBSMODELCARS the fakt is that it appears not only on metal... its also on plastic details... so... its not a problem in metal... most likely depends on the paint itself ... If you find out some exact information, or how to prevent the appearance of rash - then write or remove the video necessarily ... Thank you for your answer.

[@창순이-f2x]

Would you please tell me how to remove scratch on clear parts?

[@ROBSMODELCARS]

I use the Tamiya polishing compound on clear parts as well, usually just the FINISH compound

[@창순이-f2x]

ROBS MODEL CARS Thanks for reply.

[@elkaisermsc1779]

Deja los links en la descripción

[@afhdiecast7714]

How I can avoid the paint rash on my models??

[@ROBSMODELCARS]

You can't. It is a reaction of contaminated metal under the surface of the paint, this happens when the factory paints the model and it develops over time. That is the theory anyway. It is a hidden problem that may affect some models and not others, but Kyosho diecast models are well known for it.

[@afhdiecast7714]

@@ROBSMODELCARS I heard from many collectors that the humidity and bad storage would be effect on the model Is this right ? And how I can storage my models in right way?

[@B501R]

Diecast is far more better to look at, to have, to buy, to keep, to display, to everything than plastic model kit!

[@MrNew122]

Hotwheels: 1/64 scale paint finish lasts 30 years without a scratch.....1/18 scale paint finish, you'll be lucky to get 5 years!

[@ROBSMODELCARS]

Not all models suffer from rash, I have a lot of Hotwheels Elite that are over 10 years old that have no rash, so it seems random or specific to just some of the releases

[@B501R]

I quit buying Tamiya's plastic model kit once I realize Diecast is far more better!

[@mybnz190]

Not wearing white gloves...not a true collector