Thread: Painting inner fender wells with por15?

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I wanted to paint the non visible areas with por15. These areas have a lot of surface rust so I am going to get rid of as much as I can with sanding, naval jelly,etc. Lastly I am going to prep with Jasco brand metal (rust conveter) prep/primer before the por15. Do you guys know if the por15 will stick with this metal prep? Or do I need to use some type of etch primer before the por15 for the areas that are clean(no rust) metal?

I don't see why it wouldn't, Por 15 will stick to anything.....especially to your hands, make sure you wear some gloves!!!!!

POR 15 doesn't like to stick to shiny slick clean metal - it works best at encapsulating rust and really rough spots. I did the reinforcing tubing in my roadster with gray POR 15 - and the dam' stuff partially peels off any place I can scrape it with my finger nail. Now - my hands - just try to get it off!!

I'll second what IC2 said about it not sticking to shiny. slick metal. I've used alot of it in the fender wells and under the car, and found the degreaser and metal etcher they offer work great, but at the minimum at least use the etcher. Just my .02, hope it helps.

I wish I could find some clean shiny metal on this thing I am going to look for the Jasco etch (or por etch, which ever comes first)to apply before painting with por15. I was going to spray it on but I think I would get better coverage in to all the little cracks if I brush it on?

Yes, brushing it on is fine, as you stated, you'll get it into the cracks well this way, and it levels itself out completely as it dries... it WILL NOT stick to anything though, contrary to what some believe... as noted above, it will flake off shiny surfaces, and will not stick to any plastic, etc. Its sorta like superglue, people stick their fingers together with it and assume it will stick to anything that well, and in reality its uses are quite limited. It sounds like it should work well for what you're doing though.

Originally Posted by BigTruckDriver

I wish I could find some clean shiny metal on this thing I am going to look for the Jasco etch (or por etch, which ever comes first)to apply before painting with por15. I was going to spray it on but I think I would get better coverage in to all the little cracks if I brush it on?

please do not spray it without the proper ventilating equipment, i believe it is epoxy based and will set up in your lungs, or just do alot of damage to you, there is a warning on the can about spraying it.......i brushed and rolled all mine, a foam roller works great, its like oil based paint, it will kind smooth out the brush strokes on its own

POR is best applied with a foam brush, Go buy you a few and just toss em when your finished...