Klenk's Epoxy Enamel is an extremely hard and durable two-component epoxy for consumer and professional use. It is specially designed to restore the finish on tubs, sinks, toilets, ceramic wall tiles, and appliances. Klenk's Epoxy Enamel can be used on any hard, solvent-resistant surface, such as ceramic, metal, stone, marble, melamine, fiberglass, etc. Do not use on plastic or imitation marble, stove top ranges, or other surfaces subject to excessive heat. Always test surface with Klenk's Epoxy Thinner prior to use.