For different substrates and different requirements,GRASi develops new products,like nano penetration protection and nano coating, such as the corrosion protection concrete coated with GRASi products, can be placed in sulfuric acid solution soak for 16 hours, the test will not change the compressive strength of concrete, receive highly recognized by customers in Europe and the United states ,for vehicle surface protection ,effect is unique, waterproof, smoothness is the leading among competitors in Europe and the United states.