Product Code

AC-S313

3-Mercaptopropyltrimethoxysilane

CAS Number
4420-74-0

Description

Mercapto (thiol) functional silane. The thiol group couples to sulfur-cured rubber networks and binds strongly to noble metals, and it also participates in thiol-ene UV chemistry. Releases methanol on hydrolysis.

Synonyms

MPTMSgamma-Mercaptopropyltrimethoxysilanemercaptosilanesilane coupling agentadhesion promoter3-Trimethoxysilylpropane-1-thiol1-Propanethiol, 3-(trimethoxysilyl)-3-(Trimethoxysilyl)propyl mercaptanMPSC6H16O3SSi

Cross-Reference

Comparable products from other manufacturers, for identification purposes only.

A-189 (Momentive)Z-6062 (Dow Corning)KBM-803 (Shin-Etsu)MTMO (Evonik)GF70 (Wacker)

Key applications

  • Silica-reinforced rubber compounds
  • Filler treatment for tire and technical rubber
  • Adhesion to copper, silver and gold
  • Thiol-ene UV curing systems
  • Metal primers

Characteristics

FamilyMercapto Silanes
FunctionalityMercapto
Molecular formulaC6H16O3SSi
Molecular weight196.34 g/mol

Industries

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Functions

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