dry abrasive paper is made of glue or synthetic resin bonds,aluminum oxide, white aluminum oxide,garnet, glass coated on paper backing. it is used for grinding and polishing the bamboo and wood products. electo-coated waterproof abrasive paper is made of synthetic resin,aluminum oxide, or silicon carbide coated on kraft waterproof paper or latex paper backing. it is used for the grinding and polishing of automobile,furniture,leather,cases of electrical household appliances, and machanical components. it has the features of grinding in water, bright workpieces surface, and no dust pollution. zinc-stearate abrasive paper is made of zinc-stearate materials coated on the surface of abrasive paper. it has the function of draining crumb, cooling, anti-clog, especially used in the dry polishing for soft materials,such as wood, paint, soft metal, and etc.