Water Resistant Polyester Finish: Provides a durable, water-resistant finish for rubber and other materials. Two component chemical liquid used for the final skimming of a polyester putty repair or for direct application onto minor imperfections on bodywork prior to over-painting Shrink resistant Self-leveling - will not pinhole Tack free and bleed through resistant Ideal for skimming over finished body filler Can be used on bare steel, galvanized/zinc coated steels, aluminum and OEM surfaces.