SiSiB® PC7500 Vinyltris(methylethylketoxime)silane

SiSiB PC7500
Vinyl tris methylethylketoxime silane
SiSiB PC7500 (VOS silane) is used as a neutral curing agent in silicone sealant formulations. Generally, this silane is used for crosslinking α,ω-silanol polydimethylsiloxanes in the presence of atmospheric moisture.

SiSiB PC7500 silane is the equivalent of Evonik\'s OX 20 and Nitrochemie\'s OS 2000.

Technical Data
CAS No. 2224 33 1
EINECS No.: 218-747-8
Formula C14H27N3O3Si
Molecular Weight 313.47
Boiling Point 115°C [0.12mmHg]
Flash Point 63 °C

Color and Appearance Colorless or yellowish transparent liquid
Density 25/25°C 0.99
Refractive Index 1.4635 [25°C]
Active Content 97.00%

Application

SiSiB PC7500 vinyl tris methylethylketoximino silane is used as a neutral curing agent in silicone sealant formulations.

In most cases SiSiB PC7500 vinyl tris (butanone oxime) silane is used in combination with MOS silane (SiSiB PC7130). Compared to formulations based on methyloxime silanes only, the use of combinations containing methyl- and vinyloxime silanes leads to a shorter skin formation time of the silicone sealant without a reduction of the curing time. The ability of the sealant to withstand stress early, required for a certain elasticity and tear resistance, is achieved.

Packing and Storage

SiSiB PC7500 clear silicone sealant is supplied in 200Kg steel drum or 950Kg IBC container.

In the unopened original container SiSiB PC7500 has a shelf life of one year in a dry and cool place.

Silicone is ubiquitous in our lives and has been continuously improving our lives. Since our establishment as a silicone products manufacturer in 1989, silicone China has been our core business, especially custom food and medical grade silicone. SiSiB SILICONES provides a comprehensive range of performance-enhancing products and solutions to better meet the need of customers. As a reliable company in China, SiSiB supplies products like silanes and siliconates, silicone fluids, silicone emulsion, silicone gel and oil, silicone polymer, silicone rubbers, silicone resins and fumed silicas, all manufactured by our factory.