These sanding sheets are manufactured with the highest standards in the industry and are ideal for the removal of paint, rust, scale and corrosion from metal surfaces. It is perfect for use on ferrous metals,steel, copper piping, brass, iron, aluminum, bronze and stainless steel. Great for preparing copper pipes and plumbing fittings before soldering and sanding spindles, shafts and wrought ironRemove rust, paint and prepare metal surfaces for before finishingCan be used for polishingFlexible cloth backing designed for hand sandingResin bonding locks grain to the cloth backing for longer life