Use MultiSand A213 medium-grit paper sheet with your sanding block or board for general-purpose sanding, finishing and cleaning and detailing. This paper employs a high-quality P-grade aluminum oxide grain abrasive, open coating and C-weight backing to work like a champ for hand sanding and light mechanical applications on a wide range of materials, including plastic, fiberglass and composites, aluminum, brass, titanium and super alloys, hard and soft-carbon and 300 series stainless steels and hard and soft woods. Use this paper for removing old paint and moderate material removal.