fully resin bonded to a strong x-weight polyester backing offering a sturdy but flexible belt, that can withstand heat and thrives in high pressure grinding applications. These belts are extremely versatile; the premium dense zirconia grains on each 1” x 42” inch pipe and tube sanding belt were formulated for aggressive and heavy stock removal applications as well as more aggressive grinding, deburring, sanding, and polishing of pipes while the open coated characteristic allows it to grind on softer materials without loading. Due to the self-sharpening properties of zirconia, it will cut faster and more consistently for a longer duration of time than aluminum oxide alternatives. The zirconia grains can last 2-3 times longer than aluminum oxide grains on belts when being used for heavy-duty, aggressive applications. GRIT 80