Typical Physical Properties
Empirical Formula: C9H22O3SSi
Molecular Weight: 238.42
Chemical Name: τ-Mercaptopropyltriethoxysilane
Boiling Point: 210 degree(760mmHg)
Refractive Index: : 1.4331(20 degree)
Density 20/4 degree: 0.9325
Flash point: 88 degree
CAS-Number: 14814-09-6
Purity: Min 95.0%

Applications
Improved or equal performance is low-rolling resistance silica-reinforced tread compounds can be achieved at lower silane loading levels when WD-81 silane is substituted for commonly used polysulfied-type silanes. Mineral-reinforced articles such as shoe soles, rubber rollers and wheels, white sidewalls, and wire and cure accelerator systems and increased sulfur-donor concentrations may be necessary when WD-81 is substituted for slower cure-rate polysulfide-type silanes. WD-81 silane is soluble in methanol, ethanol, isopropanol, mineral spirits, acetone, benzene, toluene, xylene, and in water when suitable hydrolysis procedures are followed.