Thread: What would you guys do in this situation? Bare metal

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I treated the metal with a 2 part chemical treatment from DuPont. The first step calls for soaking everything with the part A then rinse with water. After that the whole thing turned a light bronze color. Was this rust or the zinc color coming out?

Man ,it looks like rust What should I do to paint the epoxy?? I am going to paint the seams and fender wells with the por15 but use the epoxy for the engine compartment. What should I do about the light rust?

Heres some pics after the treatment.....

Looks like a typical phosphoric acid based material reaction. It could be that in the areas that are rusting already the material was used too sparingly or without allowing sufficient reaction time. If it were me I'd go back over the rusted spots with the rust conversion material by hand (gloved of course) as a touch up. Then if you had any doubts about the success of the conversion process spray a coat of etch primer before topping with epoxy primer. If you're good with the conversion process then go straight to the epoxy primer/sealer.

Just to give you an idea of how effective phosphoric acid conversion is here are a couple pics of a chassis in bare metal I've got in process. The first is the frame shortly after delivery with areas of surface rust. The second is the chassis today, four months after doing the process as you described; acid wash followed by wash with water to neutralize, followed by drying. You can even see some finger prints that haven't gotten rusty yet.

I would call it good , I followed the directions. BUT, I have never used the metal prep from DP to compare. Damn, the more I look at your photos and compare to mine I think I did something wrong. I will take photos to the paint shop tomorrow and see what they say.