Pack of 50 strips of sanding sheets 105x152 mm Grain 150 Attachment: self-adhesive Fine and without streaks. For sanding large surfaces and curved surfaces. High quality professional grade for different surfaces universal Fine, streak-free cut. Our 150 grit sanding sheets are suitable for standard multi-purpose sanders. The paper abrasive, sometimes called sandpaper or emery paper, is a tool for surface treatment. It is used to smooth rough wood surfaces to break up edges or to remove large parts of material. In addition, abrasive papers are used not only for wood, but also for varnish, metal and natural stone. Abrasive - Corundum. Corundum is the abrasive most commonly used. Its important properties, hardness and resistance depend on its already recognizable purity by color. While the hardness and therefore the brittleness increases with the degree of purity, the resistance will increase by adding metal oxides and the rate of cooling during the manufacture of the abrasive agent. Normal corundum is brown and contains more than 94% Al2O3. Its field of application is mainly unalloyed and low-alloyed steels, as well as cast iron and gray cast iron, as well as wood, plasterboard and plastics. Its resistance also allows large contact forces on the part.