TERCOO BV is producer of the TERCOO rotating blaster. Tercoo is a natural rubber disk with 12 hard metal tungsten carbide tips (pins). These pins will "hammer" on the surface what has to be cleaned. By this "hammer" effect all contaminants and old paintings will be removed. The hammer effect creates no heat, so tough materials such as tar, adhesives and sealants will be easily removed. This is an entirely opposite concept compared to other tools like grinding, sanding or brushing. Other tools use friction to remove contaminants which produce a lot of heat and work ineffectively with bitumen-based products, tar, adhesives etc. In other words: it doesn't matter what the contaminants are Tercoo will always clean it.