I have some remanufactured front calipers about a year old. They rusted rather quickly, ive sanded most of that off.

Do I need to primer them before painting? Im using high heat paint.

Thanks, Spy

 

well u dont have to but more than likely the brake dust in there will cover them over quickly so u may want to primer them sand down the primer till smooth and then paint and seal with some clear coat that can stand the temperature down there cuz i just painted mine and the were nice and blackish in about a month, but then again i dont really care about it so i just painted over the crud again, if they were smooth i'm sure they wouldnt hold so much crap

 

i tried cleaning with solvent and using heat paint and it did no better than just priming and painting with regular paint,

 

Gotta do it right.. This is excellent stuff. I have used it on two cars with great results:

http://www.tirerack.com/brakes/g2/caliper_paint.jsp

 

great stuff, and if your going to do it, do it right and put ceramic pads on at the same time, no squeaks ever and virtually no visible brake dust!

 

I use brake cleaner on my parts

Let it dry

Sanded it down

Use brake cleaner again

Ran warm water

Let it dry

and it came out perfect. Took everything off.

I used p21s wheel cleaner in GEL form, the liquid version runs too quickly.