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 mercapto-functional silane that finds use as a coupling agent in polysulfide and polyurethane caulks and sealants. It is especially useful in sulfur-cured and metal oxide-cured elastomers. Chemically bonding reinforcing minerals like silica, clay, mica and talc to the polymer matrix, properties including modulus, tensile and tear strength, heat buildup, abrasion resistance, resilience, compression set and cure time are improved in mineral-filled elastomers. It can be used as a pretreatment on minerals or added at the time of compounding. Being a rather efficient and fast sulfur containing silane, typically lower silane loading levels are used.

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.97.0% by GC


Improves the adhesion of polysulfide and polyurethane sealants to glass and metal surfaces.
Improves low-rolling resistance in silica-reinforced tire tread compounds.
Enhances properties in mineral-reinforced articles such as shoe soles, rubber goods.

Suitable for use in polymer such as Butyl | Epoxy | Neoprene | Nitrile | Phenolic | Polysulfide | Polyurethane | Styreue Butadiene.


Net weight 210L steel drum or 1000L IBC container, for more details, please visit Packing Centre.

Technical Library

Download Technical Data Sheet Safety Data Sheet


Download 2010 SiSiB® SILANE Catalogue