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Is it possible to paint 570 tank and subframe?

M

maKe

Joined Jun 2011
351 Posts | 24+
Finland
Well luckily I haven't painted my yet. Or I would have, but a friend of mine stopped by today and was asking wtf I am doing.

He told me the tank material is something that no paint or adhesion promoters would stick, and it's so porous that gas fumes will breath through it. Well I knew that the material is something that getting paint to stick to it might be a problem, but I really didn't thought about evaporation issues.

I was going to use good quality stuff. 3M plastic adhesion promoter in spray can, Spies Hecker 2K primer, black basecoat and matte clear coat using spray gun. Can I atleast do the subframe or will I encounter problems with that also? I really hate the clear plastic look and was going for nice matte black finish.
 
Well, this is interesting. http://www.southbayriders.com/forums/showthread.php?t=84314

"Tank is double lined and no longer translucent in order to get a green sticker in California. According to CARB the single lined transparent tank will sweat and release gasoline into the atmosphere so now the fuel tank is double lined and black."

I have clear tank so is it double lined or what? And it sure as hell ain't black.
 
Well what a heck. I went today to a collision repair / automotive paint shop and asked is it even possible.
He said why not, if the tank is pretty newish and no gas is spilled on the outer side of tank so no contamination is on the painted surface.

Good prep, good plastic adhesion and proper automotive paints = go for it.

I even tested two weeks ago on the subframe on small area how the primer will adhere to it. Sanded the area with 240 water, CLEANED it properly using Spies&Hecker silicon and grease remover, gave a light coat of 3M plastic adhesion promoter on it and let it flash for 10mins, shooted Hecker 2K primer few light to medium coats and let it sit overnight in 50celsius Sauna. Next day I tried sanding and it sanded finely and even today I can't get the damn stuff fall off or come in chips if I scrape it hardly or try knock it lightly.

So it seems that primer will adhere to polyethylene with proper prep work and so basically paint should work nicely.
Gonna paint the tank and subframe in few days.
 
maKe said:
So it seems that primer will adhere to polyethylene with proper prep work and so basically paint should work nicely.
Gonna paint the tank and subframe in few days.
Click to expand...

Don't do it maKe. If the tank really is polyethylene - which I have not confirmed - it will breathe no matter what you do to it, and the paint won't hold up.

If it's polyamide (PA6) like some other KTM tanks then you will be ok.
 

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