Norton SandWet 11 in. L X 9 in. W 600 Grit Aluminum Oxide Waterproof Sandpaper provides a fast cut rate and a smooth, consistent result. Ideal in wet, oil, or dry sanding applications of varnish, enamel, primer, lacquer, and sealers. This paper waterproof sheet offers an excellent option for sanding and finishing hard and soft woods in combination with a sanding block or for hand sanding applications.