Use the A275 OP coarse grit paper sheet for excellent performance on all surfaces and coatings. Ideal for heavy material removal by hand, this paper features a P-graded, heat-treated aluminum oxide abrasive that delivers consistent results. A fiber-reinforced, B-weight latex-saturated backing resists tears, folds without cracking and provides good flexibility. Featuring a open-coat design that resists clogging and loading during sanding thanks to a non-pigmented, water-based stearate coating, this coarse grit paper sheet works well for sanding painted surfaces, plastics, composites and other materials that tend to load.