SurfPrep foam abrasives are manufactured with premium abrasive grains and flexible adhesives that are coated directly onto the surface of the foam • Our unique method of coating, in addition to the use of "solvent free" adhesives, is a contributing reason for the elimination of heat buildup at the point of contact and extends the life of SurfPrep foam abrasives as much as 10x and more over conventional sandpaper • SurfPrep has done what no other product has done before, tool sanding in the place of hand sanding • The flexibility of the foam in conjunction with the perfect orbit of the sander allows for a flawless finish