VANABIO® OS3750
VANABIO® OS3750
VANABIO® OS3750

Vinyltris(methylethylketoxime)silane

VANABIO® OS3750 (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.


VANABIO® OS3750 silane is the equivalent of Evonik's OX 20 and Nitrochemie's OS 2000.

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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

0.990

Refractive Index

1.4635 [25°C]

Active Content

97.0%


Application


  • VANABIO® OS3750 vinyl tris methylethylketoximino silane is used as a neutral curing agent in silicone sealant formulations.


  • In most cases VANABIO® OS3750 vinyl tris (butanone oxime) silane is used in combination with MOS silane (VANABIO® 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


  • VANABIO® OS3750 clear silicone sealant is supplied in 200Kg steel drum or 950Kg IBC container.


  • In the unopened original container VANABIO® OS3750 has a shelf life of one year in a dry and cool place.

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