Professional 7940 Siaair 5″ Foam-Backed Sanding Discs – 1500 Grit

The 7940 Siaair 5″ Sanding Disc (1500 Grit) is engineered for professionals who require precision during the critical stages of surface preparation. Unlike traditional stiff abrasives, this disc features a specialized knitted fabric with a foam backing. This unique construction cushions the abrasive grain, allowing it to adapt seamlessly to curves, contours, and complex profiles. This pressure-equalizing foam ensures a uniform finish without the risk of sand-throughs or pressure marks, making it indispensable for automotive bodywork and high-end woodworking.

Capable of handling both wet and dry applications, the 7940 Siaair utilizes premium aluminum oxide grit bonded with resin over resin. This robust construction is enhanced by a special coating process that significantly reduces clogging, a common issue when sanding clear coats or primers. By maintaining a clean cutting surface for longer, these discs extend their operational lifespan, reducing the frequency of disc changes and lowering overall material costs for your shop.

This 1500 grit disc is specifically optimized for matting conventional old and new varnishes, fine sanding primer fillers in difficult areas, and preparing surfaces for the final polishing steps. It delivers exceptional results on a wide variety of materials, including lacquer, gelcoat polyester, acrylic glass, and composites. Sold in boxes of 10, the 7940 Siaair ensures you have the consistent, high-quality abrasive needed to achieve a flawless, showroom-ready finish