Norton Black Ice sand paper uses the most advanced sandpaper technologies on the market today. For the Ultimate finish, the best grain on the best backing gives you the best cut rate on the market for wet paper. Both the bond and the backing are flexible for easy folding and tearing for wet or dry sanding. This sandpaper was engineered specifically for the automotive market but can be used in many other industries. Norton Black Ice delivers unsurpassed results in waterproof and color sanding.