when you are painting calipers (properly) you come up against all sorts of problems, to the point where someone like dave is needed.
you can do them yourself, but i would prefer to have them done bang on. As you all might know, im a perfectionist when it comes to things like this.
To paint them properly, you would ideally get the previous paint taken off. To do this, you would need to disassemble the caliper and take the piston out. Then you'll have problems with seals drying out. The caliper and carrier will be bead blasted and painted. its a pretty indepth job and is a brake caliper something you want to be taking to bits yourself?
Now, if you want to do it yourself, you would get about 75% the result of a full powder coating job. Going down this route would involve rubbing down the previous paint as best you can then putting two coats of new paint over the top. Ive done this before to good effect. Not as good as a proper powder coating job,but still good to look at! ;)
hope this gives you two ways of looking at it:
- A proper job would be well worth it by someone who has experience and contacts who do this work all the time.
- DIY with some care and effort will yeald good results, and involve less than you originally thought. But it probably wont look as OEM as a powder coating job.
Then choice is yours!
hope this helps