Ultra-Glaze 482 4820 is a two-part, flowable, polyester finishing putty ideally suited for filling and skim coating body work, pinholes, grind marks, low spots and other surface imperfections. Can also be used to fill minor body damage up to 1/8" (3mm) in de Features Superior Adhesion to Galvanized Steel and AluminumTack FreeCorrosion ResistantNo Shrinkage