Originally Posted by Gkap
that is a good question, I would like to know aswell.
I tried claying my tips today, there was some brake dust and soot deposits caked on it. Within as few seconds, everything came off, and the finish wasn't affected at all (other than regaining its shine). I made sure to use lots of clay lube and when the tips were nice and cool. Based on the results, I would think its safe to do.