High-Performance Flatting: 1950 Siaspeed 5″ Adhesive Back Discs

The sia Abrasives 1950 Siaspeed 5″ Sanding Disc is engineered for high-performance intermediate surface preparation, balancing stock removal with fine finishing. Utilizing a durable, FSC-certified paper backing and semi-friable aluminum oxide grit, this 400 GRIT abrasive delivers superior stock removal and a highly uniform scratch pattern. It is a top choice for professionals in automotive refinishing, woodworking, and industrial metalworking who require reliable adhesion with its Adhesive Back format. The multi-hole pattern ensures efficient dust extraction, improving work efficiency and creating a cleaner, safer environment.

Fine Sanding of Primers and Keying Lacquers

This 400 GRIT 1950 Siaspeed disc is optimized for crucial intermediate tasks, including fine sanding of primer filler, keying old and new lacquers for superior adhesion, and flatting body filler and composite materials. The robust paper backing provides a strong foundation, while the electrostatic open coating minimizes clogging and maximizes the disc’s lifespan. This controlled sanding ensures a perfect base for subsequent finer grits or top coats, reducing downtime and significantly boosting the quality and productivity of your finishing process.

Versatile Abrasive for Base Coat Preparation

From sanding out unevenness at repaired edges to keying plastics and old lacquers, the 1950 Siaspeed delivers consistent, professional-grade results across a wide range of materials. Its durable grit and special Stearate coating ensure high clog resistance and excellent performance on coatings. The combination of precision sanding capability and the convenience of the adhesive backing makes this disc an essential and economical solution for achieving a defect-free surface ready for top-coating.