... sanding, the special hidden anti-clog coating reduce the clogging of dust, suitable for dry sanding. Rough grit product is suitable ... -adhesive sanding disk. It is mainly used in the sanding of car paint, paint, filler, putty, electronic product, metal, aluminum ... is, conventional anti-clogging sandpaper is white, there are two layers of sanding surface, during sanding, the white powder on the sand ...