I need a little help. I just bought a S&W "Baby Russian" revolver and the right stock, on the bottom was broken out by someone prying the grip off the pin. Fortunantly, it is a clean break and I want to make a repair with Epoxy, colored with lamp Black or other fine Carbon Powder. Where do I buy one of these products????? Is there another black powder or product that can be used on the Gutta Percha stock?????