CORE: 3"ADHESIVE: Rubber- Hot meltSHELF LIFE: 1 YearAPPLICATION TEMPERATURE RANGE: Above 50 FPERFORMANCE TEMPERATURE RANGE: -20 to 120 FMATERIAL: * 80 Grit (Clear is 60 Grit.) * Abrasive grain coated plastic film backing. * Removable Kraft liner.MISCELLANEOUS: * Can be used on painted wood, painted metal or sealed concrete. * Grease and water resistant. * Surface must be clean & dry at time of application with air bubbles smoothed out. * Not recommended for porous surfaces.