SUPERLINK®Si**7  is  a  special  Mercaptosilane  which  is  different  from  the conventional sulfur silanes (e.g. TESPT, TESPD).  It is used as coupling agent for silica-reinforced rubber compounds, especially fuel-efficient tires.
Much lower rolling-resistance and VOC emissions compared to TESPT  and TESPD in typical green-tire tread compound
Lower Mooney viscosity and better dispersion of silica
Good storage stability of uncured rubber due to low silica reagglomeration