Swallow sand paper is an automotive and marine sandpaper. Swallow sand paper is waterproof and suitable for wet or dry sanding. The japan made swallow sand paper is excellent for sanding primed surfaces, removing orange peel, dust nibs and light sagging of the top coat. Used on metal, plastic body filler and fiberglass surfaces.
The grit number indicates the size of the abrasive particles. The lower the number, the larger the abrasive particles — they remove more material but create more noticeable scratches.