The front calipers I replaced last year are starting to rust. I'm going to paint them along with the rear calipers to prevent further rusting. I did a search on this and it hasn't been discussed in over 2 years. I purchased caliper spray paint and rubber caps made especially to cover the brake lines or calipers.

I plan on removing both the claipers and the torques (brackets). I'll then degresae and sand them down. On the calipers I'll tape off the piston and bleeder valve. On the torques I'll tape off the guide pin slots. I'll then spray on 2 coats of primer, 2 coats of the black caliper painter, and 1 coat of clear coating.

How long should I let them sit? On one of those old threads someone stated they need to sit for several days?

Tell me if there's any other step needed in doing this simple job?

 

if using rattle can paint...as long as its pretty warm you should be able to put them back on within an hour...this is considering that you have to apply pressure to the caliper to put them back on and granted you may/will mess up the paint..but ill allow someone else to chime in

 

whatever paint you are using should have the drying time printed on the can. You can probably put another coat on 3 to 4 hours after the previous one providing it's not sticky to the touch, but you probably need to let it dry for at least 12 hours before you put it back on the car.

I don't think you should use 2 coats of primer. Primer is not as hard as paint and 2 coats would make a kind of a soft underlayer. Primer is needed because paint will not stick to bare metal super good so primer was created to stick to metal better than paint but allow paint to stick to it better than metal.

 

Since this is no body part I was thinking of just using 1 coat of primer. I'll let it sit overnight after the last spray. That's what I did when painting the trunk along with the spoiler I replaced last August.

 

Follow the directions on the spray cans. Primer usually cures fast so you should be able to paint right after you prime, 1 coat is all you should need. Paint usually flashes over pretty quick too, allowing for the 2nd coat shortly after. Again, follow the directions on the paint cans.

FWIW - The Foliatec caliper paint I used EIGHT years ago still looks fantastic.

 

Or you could do what i did and just jack up the car take off the wheels and just paint calipers no prime , tape you up a good section with new paper.

 

i just cleaned the metal surface real good, taped up where i didnt want paint and applied a few coats of caliper spray paint. I let it sit overnite.

very satisfied