Sungold Abrasives 27206 80 Grit 10 Yards 4-1/2" By 10 Yards Psa Rolls Stearated Aluminum Oxide Used for wood metal plastic fiberglass paint primer solid surface materials composites hand sanding and half and quarter sheet sanders 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 to keep the grain on the cutting surface and waterproofing the sheet