The 3M™ Trizact™ Cloth Belt 217EA uses the proprietary microreplication technology where micron-graded aluminum oxide particles are formed into tiny pyramids of abrasive mineral and then coated on a J-weight rayon backing. As these pyramids wear, fresh, sharp mineral is continually exposed to produce a consistent cut and a predictable, fine finish.The abrasive and resin structure for the 3M Trizact Cloth Belt 217EA is formulated to break down under medium pressure and keep fresh, sharp mineral cutting to provide consistent finishes on hard metals such as carbon and stainless steel. The belt also features a grinding aid that helps prevent heat buildup, warping and discolouration. The belt is constructed on a J-weight, durable cloth backing that helps provide control, conformability, and effective medium-pressure grinding. The resin bonded abrasive gives you greater heat resistance and helps prevent delamination. Unlike conventional abrasives, the line of 3M Trizact Belts start sharp and stay sharp, resulting in more predictable finishes and improved, consistent quality. These belts last up to five times longer than conventional belts and provide precise finish control such that operators can reduce grade sequences, requiring fewer process steps and fewer abrasive products. Three-dimensional structures uniformly distributed over the entire surface of 3M Trizact Abrasives ensure consistent performance and eliminate part to part variation.