Bis(3-triethoxysilylpropyl)tetrasulfide

Silane USi-S694

Sulfur functional alkoxy silane

Product Description

Chemical Name: Bis-[3-(triethoxysilyl)-propyl]-tetrasulfide

Synonyms: Di-(3-ethoxy silane propyl)- tetrasulfide

CAS NO.: 40372-72-3

EINECS NO.: 254-896-5

Molecular weight：538.94

Typical Technical Data

Appearance: Canary transparent liquid

Impurities Content%:≤4.0

Sulfur content (%): 22.0 MIN

Free Sulfur Content %:≤1.0

Average Sulfur Link Length%:3.60 ~ 3.90

Properties

Silane USi-S694 is a kind of silane coupling agent with multiple functional groups successfully used in rubber industry to improve modulus and tensile strength of rubber, to reduce the compound viscosity and save process energy consumption.

It’s especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers. The suitable fillers include silica, silicate, clay, etc.

The suitable rubber include natural rubber, Butadiene styrene rubber, Isoprene rubber, Butadiene rubber, Acrylonitrile butadiene rubber, Ethylene propylene diene rubber, etc.

Applications

Silane USi-S694 is a kind of silane coupling agent with multiple functional groups in below industries:

Low rolling resistance tires, mechanical rubber goods and soles;

Used in rubber industry to improve modulus;

and tensile strength of rubber, to reduce the compound viscosity and save process energy consumption;

It’s especially applicable for polymers with double bond or rubber formulation with hydroxyl fillers;

USi-S694 is also available as a dry blend (1:1) with carbon black, named USi-S69C;

Packaging

In 25L pail, 200L drum and 1000L IBC