I have some isolated rust areas that I want to tend to before I have a bigger problem. I plan on repainting the entire car in the future, but I don't want the leopard primer look in the meantime. Can I apply POR-15 to these areas and then apply touch-up paint over the POR-15? Will the POR-15 create problems later when I decide to get the car painted? What color POR-15 should I use...I noticed they have a clear formula now(my car is red). Any advice/experience is appreciated.

Dale,

Great question! I have the same situation. I'll add one more question...When you do get to paint the car, can you paint over POR-15 or will primer not adhere?

Kevin

POR15 is good for under carrag,frames,inner panels and floor pans. IMHO if the rust you are talking about is surface rust.(undamaged pannel) There is only one FIX. remove the paint in that area to clean the active corosion below the painted surface.
The guy who owned my El Camino B-4 me took that aproach of fixing the rust around the windshild area, by sealing it with clear
silicon caulk. It did not leak but the RUST
KEEP eating away at the dash and suronding
\area .
As for finnish color paint over POR15
Not a good practice for body parts.

If it's surface rust do a panel at a time and over coat with etching primer and high build URO primer. This will seal that area .

wish there was an easy fix ?


------------------
Wayne
ACES 1556
TCG 186
So many Mustangs
So Little Time

Any luck on your repairs? I looking at doing the same thing.

POR would require the "Tie Coat Primer" in order for you to be able to paint over it.. even then the Manufacturers do not recommend POR'ing body panels.. I would probably get enough touch up paint to cover the areas and about 4-6" outside the rusted area. I would bring down too bare metal, treat the rust with etch, prime and paint with touch up.. blend in as much as possible.. that will seal it up nicely, and hopefully prevent the rust from returning. if you wanted a quick fix before painting, I might try to POR the rust, and touch up.. but I'll bet it looks like crap and might not do the trick.. Good Luck either way.

I think the best way is to get rid of the rust by dipping, blasting, sanding or rust remover. It just depends on the size of the rust and the thickness of your wallet. Once you have clean bare metal, prime with a metal etch followed by epoxy primer then filler. Cover with sanding primer, sealer, finally paint.

I really don't like painting over Por-15. I'd get rid of the rust instead.

The best way to stop rust is to mechanically remove it on the outer panel surfaces, use self etching primer, then top coat with urethane primer. Once you have that looking smooth, spray some finish paint to blend in with what you have. You can then treat the back side of the panel with POR-15 to prevent the cancer coming back from the other side. Like Neil Young says;

RUST NEVER SLEEPS!