Does anyone know what kind of stuff they use to coat suppressors with? Specifically I am asking about a Griffin Recce 5.

Mine still looks pretty nice but I've got it pretty hot to the point where some of the coating stuff is wearing off. Generally I won't do more than 3 mags of rapid fire, but 2 or 3 mags on a 10.5 SBR gets that suppressor pretty warm. Of course it's not the end of the world or anything. It's 100% cosmetic and not really pressing but up the road if I ever decide to do it is there any type of coating material that I should look at? Or is that even an option?

I don't think paint or even cerakote can stand up to the 1000+ degree temps but who knows.