Sandpaper
close Phonetic: sh ā zh ǐ abrasive paper; emery paper; Sand pa per is commonly called sand skin. A material used for grinding. It is used to grind metal, wood and other surfaces to make them smooth and smooth. It is usually made by gluing various abrasive grains on the base paper. According to different abrasive materials, there are many kinds of emery paper, artificial emery paper, glass emery paper, etc. Dry sandpaper (wood sandpaper) is used to polish the surface of wood and bamboo articles. Water resistant abrasive paper (water abrasive paper) is used to polish the surface of metal or non-metallic workpiece in water or oil. The base paper is made of unbleached kraft wood pulp. Paper is strong, wear-resistant, folding resistant, and has good water resistance. The abrasive materials such as glass sand are adhered to the base paper with adhesives such as gum and dried.