Sand drywall compounds by hand or machine with WallSand A412 fine grit paper cut sheets. Crafted with a hard, P-grade silicon carbide abrasive, these sheets deliver sharp cutting and excellent finishing, making them a great choice for prepping walls and ceilings for painting and for sanding surfaces between coats of paint. Die-cut and featuring a heavy-duty D-weight backing, these durable sheets resist tearing and fit your sanding block or backup pad with ease.