I believe most use the duplicolor caliper paint you can get from autozone and other automotive stores. They have the high temp which is what I used on both our TBSS's.
When I was getting mine done, there was this guy with a mustang and he had his painted blue. Asked him what he used and he said some paint for plastic. I havent done any research on that yet. But his looked good. He said he hasnt had a problem with them and they have been on for a year.
dont have any pics of mine but they are red, i used duplicolor and i used a small grinding wheel to remove some of the cast marks to make it real smooth and threw on some white SS stickers on the front i did like 4 coats