Achieve an ultra-smooth, uniform surface on paint, lacquer, and steel with the Norton T489 waterproof sanding sheet. Built with a durable water-resistant paper backing and sharp silicon carbide grain, it lets you sand wet or dry without tearing or clogging. The fine P1200 grit creates an even, matte surface ready for final compounding and polishing. Measuring 230x280 mm, the flexible sheet easily conforms to curves and tight contours, whether used by hand or mounted on a sanding block, giving you complete control over high-precision finishing jobs.