Profile: Keystone Industries manufactures and distributes dental products. Our products run the gamut from abrasives, carbides, chemicals, brushes, crucibles, kiln furniture, feck's cement, PIP paste and the syrijet for the dental industry. Our acrylic polishing kit comprises of a polishing set for an efficient high-shine polishing of acrylic dentures and teeth. Our acrylic polishing kit includes 2 poly buffs w/pumice, 1 microfiber leather buff, 1 hatho beige polishing paste and 1 cotton buff.