POR15?

Good question, because I've always thought that por15 was a rust-converter or rust-eater type of paint, but everywhere I read about they tell me to prepare the surface with this and that chemical to leave it perfectly clean, thus no rust left. Then what's the deal with por15? is it rust eater? or rust preventive? (it is call Paint Over Rust, so it sounds like rust-eater to me, thought)

Ant

Anth> Hey all. Soon my 73 Beetle will get repainted at Maaco. Anyway, I'm

Thanks for clarifiying the issue, I'm about to start with the fenders and I had my concerns.

Ant

Seth Graham wrote:

AFAIK POR-15 likes surfaces that have a slightly rough surface such as light rust (rust that is not flaking off), or sandblasted surfaces. It USUALLY won't stick to new or oily surfaces! I personally believe the sandblasted surfaces are the best. Of course you can use Brake Clean to degrease the surface.

ALWAYS PROTECT YOUR SKIN, EYES AND LUNGS and any other areas that you care about. ;-)

If you wish to paint over the POR-15 primer, you could paint over it while it is tacky. I think that regular paint may not stick too well to this primer.

I have done the sandblast, POR-15, and spray can (could be regular automotive primer or even bondo) while tacky to one of my vehicles. Ask me next year how it holds up over the chicago winter. lol

if you have a sandblaster, here is a little "cheap" trick that I have used successfully.

No, you really don't. You just need to get all the *loose* rust off and all grease. In fact, if you go to bare metal, you really should sandblast the metal because the POR-15 really isn't all that adhesive - it needs some *tooth* to grip to and while it sticks to "good" rust (i.e. surface, non-flaky) well, it won't stick to smooth metal.

nate