Waterproof Silicon Carbide Sanding Sheets – 400 Grit, B-Weight

These waterproof sanding sheets feature 400-grit silicon carbide grain treated with zinc stearate to provide a non-loading, lubricating sanding action. Designed for sanding and finishing very hard surfaces, they deliver smooth, consistent results on lacquer, enamels, and similar coatings. The B-weight backing offers flexibility and control, making these sheets ideal for wet or dry finishing applications where a refined surface finish is required.