... Resin, Electro-coated, Made of Aluminum Oxide and Silicone Carbide Backing: paper rolls Detailed Product DescriptionAbrasive Paper Rolls ... Resin, Electro-coated, Made of Aluminum Oxide and Silicone CarbideSpecifications/Special Features:Materials:brown aluminum oxide, white ... aluminum oxide and silicone carbideBacking is kraft paper or latex paperResin over ...