Silane Coupling Agents | Mercapto Silanes | Sulfur Silanes | Surface Modifiers

SiSiB® PC2310

Synonym: 3-Triethoxysilypropylmercaptan

Countertype of DowCorning Z-6910, Silquest A-1891

Chemical Structure


SiSiB® PC2310 is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group. SiSiB® PC2310 is a clear, colorless to light yellow liquid with a slightly mercaptan odor. It is soluble in alcohols, ketones and aliphatic or aromatic hydrocarbons.

Typical Physical Properties

Chemical Name: 3-Mercaptopropyltriethoxysilane
CAS No.: 14814-09-6
EINECS No.: 238-883-1
Empirical Formula: C9H22O3SSi
Molecular Weight: 238.42
Boiling Point: 210°C [760mmHg]
Flash Point: 88°C
Color and Appearance: Clear to straw liquid with unpleasant odor of sulfide.
Density [25°C]: 0.993
Refractive Index [25°C]: 1.4331
Purity: Min.98.0% by GC


SiSiB® PC2310 can be used as coupling agent to improve the adhesion of sulfur cured elastomers (polysulfide, polyurethane sealants) to inorganic fillers (such as silica, clay, glass, mica and talc etc.), fiberglass and surfaces. Mineral-reinforced articles such as shoe soles, rubber rollers and wheels, white sidewalls, and wire and cable insulation also can be produced with lower silane loadings.

SiSiB® PC2310 can be used to improve properties of mineral filled elastomer, including modulus, tensile and tear strength, heat buildup, abrasion resistance, resilience, compression set and cure time.

SiSiB® PC2310 can be used as a pretreatment on minerals or added at the time of compounding.

SiSiB® PC23010 can be used to improve low-rolling resistance in silica-reinforced tire tread compounds.


Net weight 200Kg steel drum or 1000Kg IBC container, for more details, please visit Packing Centre.

Technical Library

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