Used for wood metal plastic fiberglass paint primer solid surface materials composites * Open coat grain with a non-loading stearate minimizes loading with a cool cut for longer lasting abrasives * Strong C-weight paper backing with latex impregnated paper for strong and flexible backing abrasives will not come off when folded over * P graded heat treated aluminum oxide grain provides fast smooth cut while fracturing to create new cutting services extending abrasive life * Full resin on resin bond adheres the grain to the cutting surface making the disc waterproof