With Norton T489 waterproof sandpaper, you quickly and efficiently remove paint residues, lacquer, and rust from steel and bodywork. The sharp P100 silicon carbide grain delivers powerful, consistent material removal, making it ideal for preparing surfaces before applying primer or topcoat. Thanks to the waterproof paper backing, you can sand dry or wet with water, preventing clogging and keeping the sheet intact without tearing. Sized at 230x280 mm, this flexible sheet effortlessly conforms to curves and contours during manual sanding or clamps securely onto a sanding block for flat surfaces.