Trust the SandWet T280 multi-grit paper waterproof sheet to deliver fasting cutting action and a smooth, even finish on hard and softwoods. This versatile paper sheet is ideal for wet, oil or dry sanding applications involving enamel, varnish, lacquer, sealer and primer coats. Crafted with a P-graded aluminum oxide abrasive over a waterproof C-weight backing that withstands demanding applications and resists curling due to humidity as well as chipping and cracking, the sheet paper comes in a convenient multi-pack that includes super fine, extra fine and very fine grits.