Strong, self-sharpening zirconia alumina abrasive for fast, aggressive cut 30% longer life than competitive zirconia belts Durable resin coating for excellent grain retention and product life Strong but flexible X-weight polyester waterproof backing Better choice for all fine grit light-to-moderate stock removal and finishing applicationsAchieve clean, consistent finishes on moderate stock removal and finishing applications when you choose the BlueFire R823P fine grit cloth narrow benchstand belt. Lasting up to 30% longer than other zirconia belts, this product features a self-sharpening zirconia abrasive for a fast cut rate. The waterproof backing is made from flexible X-weight polyester, which enables the belt to be used on either dry or wet applications that require light to moderate pressure. To enhance longevity and improve grain retention, the belt offers a tough resin bond.