The F355 Best for Coatings and Composites produces an excellent finish when keying and sanding abrasives as well as composite surfaces. Its high-quality silicone carbide grit-coated sheets remove material with precision for professional finishes. Furthermore, its electrostatic open-coated surface with space between the grit ensures consistent dust removal, preventing sheet clogging. This product is intended for sanding hard minerals, stone and composite materials as well as sanding between coats of varnish. Moreover, it is ideal for keying and sanding down varnishes and paint, primer, filler and plastics. It is also suitable for precision work on ferrous and non-ferrous materials. The F355 Best for Coatings and Composites features an anti-static closed coating for low dust adhesion to the work surface or machine. The grit is bonded using fully synthetic resin for wear resistance in heavy-duty applications. This product's backing material is F-/C-paper for optimal sanding behaviour. The F355 Best for Coatings and Composites sanding sheet is compatible with random orbital sanders.