I was doing a whole brake job so I removed the calipers but it isn't neccessary if you don't want to. Check the tech section for the procedure. I cleaned them with a chlorinated brake cleaner and a toothbrush and then washed them with regular water. After that, I used 1 coat of high temp primer, followed by two coats of high temp black and 2 coats of high temp clearcoat. All the paint was purchased at a local auto parts stor (Kragen/Checker/Schucks).