Wacker HDK® N 20ST

Hydrophilic fumed silica produced by flame hydrolysis of volatile silicon compounds. It acts as a thickener, thixotropic agent and anti settling agent for liquid systems, polyester, PVC-plastisols, pharmaceutical products, fluids and lubricants. Also acts as a reinforcing filler in silicone rubber. Its good dispersion is a must to assure optimum performance. It has a shelf life of at least 12 months when stored in the unopened original container.