3M Trizact Hookit Clear Coat Sanding Abrasive Discs are ideal for removing defects in the paint, such as dust nibs and matching orange peel. They're used prior to paint finishing abrasives or traditional buffing compounds and pads. These film-backed discs are used damp to help prevent loading and the curly-Qs and pig tails that dry sanding discs can leave behind.Prepare clear coat surfaces for finishing with 1500 grade 3M Trizact Clear Coat Sanding Discs. These film-backed discs are designed for damp sanding to remove paint defects and refine sanding scratches prior to buffing or using 3000-grade 3M Trizact paint finishing abrasives. These durable discs have a film backing that resists tearing and flexes over uneven surfaces. Discs are used damp to maintain a clean surface and maximize disc life. Used before any 3M Perfect-It Paint Finishing system or traditional buffing process. Level dirt nibs and refine sand scratches with fewer deep-scratch defects than dry sanding abrasives with 3M Trizact Clear Coat Sanding Discs P1500.