Fast Sanding of Paint and Wood! Sanding large surfaces is a time-consuming job: Frustratingly, many sandpapers rapidly clog with dust and lose their abrasiveness, making a long process even longer. By combining sharp grains and anti-clogging technology, the EXPERT C470 Sandpaper maintains its exceptional capabilities throughout. This means you can work faster, for longer, without compromising on the finish. Spend less time sanding – or get more work done – with the Bosch EXPERT C470 Sandpaper.