... For Metal & Wood Working TypeCharacteristicsBondBackingAbrasiveGritCoating Abrasive ClothGFK41Suitable for making sheets, roll, flap wheels, discs, etc. ... -P400Close BYM5265% polyester, 35% cotton cloth, waterproof, high strength, special processed abrasives, heavy duty ... /Open BP86Selected backing paper, high strength and flexible, for dry anti-clogging abrasive paper ,musical instrument, decorated ...