What color are you painting the calipers, and what do you plan to paint them with?
Powder coat?
https://www.armortechpowdercoa...pers-powder-coating/
https://www.youtube.com/watch?v=5hNKMVQdCJA
Eastwood Brake Caliper Paint?
https://www.eastwood.com/paint...-caliper-paints.html
Or something else...
https://www.amazon.com/G2-Temp...System/dp/B004BQ87YK