Cretors heavy-duty aerosal carbon cleaner, packaged 6 - 19-oz. aerosol cans per case. This is a powerful gel that dissolves grease and carbon buildup from metal surfaces, teflon, brick and glass. Works quickly and easily, saving time and labor. Safe on aluminum. Spray carbon cleaner onto surface and let sit for 15 minutes, or as long as 5 hours depending on carbon grease build-up.