POLYVEST® ST-E 60

POLYVEST® ST-E 60 by Evonik is a stereospecific triethoxysilane-terminated liquid polybutadiene grade with a low viscosity. It is a dispersion additive for rubber-based formulations. It is an unsaturated polymer backbone with terminal triethoxysilane function.

• It is an apolar hydrophobic hydrocarbon resin and a highly reactive binder with excellent inorganic filler dispersing properties.
• It offers excellent compatibility with solid and recycled rubber, good dispersion and chemical modification with high loading capacity of inorganic fillers.
• POLYVEST® ST-E 60 exhibits high chemical resistance and cold resistance by keeping good flexibility at low temperatures.
• It provides low moisture and gas permeability, and possibility of moisture induced curing.
• It has good solubility in aliphatic, aromatics and ethers.
• It is used as an additive for tires.
• It has a shelf life of 12 months.