3M 7010518370 | Wetordry 8" Diameter 431Q C Weight 320 Grit Silicon Carbide PSA Paper Disc

3M Wetordry PSA paper disc 431Q features silicon carbide on a strong, waterproof paper backing to provide superior finishing for both wet and dry applications on a variety of substrates.

Features:

• Versatile disc can be run wet or dry on paint, primer, gel coat, metal, and wood
• Waterproof backing supports wet applications for decreased loading and a faster cut
• Strong C-weight paper backing provides durability for either hand or machine sanding
• Silicon carbide mineral produces a finer finish than aluminum oxide
• Pressure Sensitive Adhesive (PSA) backing provides easy attachment to random orbital sander