Use carding sponge 3Mtm for carding the areas of difficult access. Our sponge helps to reach the points of difficult access, such as the area surrounding the handles and doors openings. This sponge has a medium density support that makes it perfect for preparing the old paint to the bottom and varnish application. It is ideal for wet or dry sanding of wood, paint, metal, plastic and plasterboard. If wet, it keeps the air free from dust.