Name: Momentive Silquest A-1289 Bis(Triethoxysilylpropyl)Tetrasulfide
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Momentive Silquest A-1289 Bis(Triethoxysilylpropyl)Tetrasulfide

Highly effective silane coupling agent for sulfur-cured elastomers, especially natural rubber and SBR.
Contains four sulfur atoms in the bridging group, enabling strong covalent bonding with rubber polymers during vulcanization.
Triethoxysilyl functionality ensures robust hydrolysis-condensation reactions with silica and other metal oxide surfaces.
Improves filler dispersion, reduces compound viscosity, and enhances mechanical properties including tensile strength and abrasion resistance.
Offers superior wet traction and rolling resistance balance in high-performance tire tread compounds.

Typical Applications Of Momentive Silquest A-1289 Bis(Triethoxysilylpropyl)Tetrasulfide

Tire tread compounds for passenger car and truck/bus radial tires.
Silica-reinforced rubber formulations requiring dynamic performance optimization.
Industrial rubber goods such as conveyor belts and hoses where fatigue resistance is critical.
Dynamic sealing components exposed to cyclic stress and elevated temperatures.

Chemical Type	Bis(triethoxysilylpropyl) tetrasulfide
Product Form	Liquid
Appearance	Pale yellow to amber clear liquid
Primary Applications	Silica coupling agent for sulfur-vulcanized elastomers
Key Features	Multi-sulfidic bridge, hydrolyzable ethoxy groups, bifunctional coupling
Benefits	Enhanced silica-rubber interaction, improved processability, reduced hysteresis
Storage Conditions	Store in tightly sealed containers under dry, cool conditions (15–25°C)

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E-mail: wangxingqiang@ericwchem.com
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