The red high-performance nylon sanding discs are, like the already well-known black nylon fabric sanding discs, for coarse cleaning of metal surfaces. Furthermore, they are particularly suitable for removing rust, corrosion residues, stubborn scale, paints, adhesives and sealants as well as for cleaning welds. The special feature of the red nylon sanding disc is their extremely robust, coarse-textured cleaning fleece. They have a special, very aggressive grain binder structure made of ceramic corundum grain. They are significantly harder than the black nylon sanding discs. The special advantage of this is a very fast and aggressive cleaning performance, as well as an extremely long service life. Very fast and aggressive cleaning performance, extremely long service life thanks to ceramic corundum grain edge more stable than conventional black nylon sanding discs, no geometric change of surfaces, no corrosive residue on the workpiece surface, cool grinding