1,3-Divinyltetramethyldisiloxane(CAS No.2627-95-4)

  Divinyltetramethyldisiloxane CAS No.2627-95-4 Tetramethyldivinyldisiloxane . 
Synonym: Divinyltetramethyldisiloxane 
1,1,3,3-Tetramethyl-1,3-divinyldisiloxane   Typical Physical Properties

chemical Name:	Tetramethyldivinyldisiloxane VMM, ViMM
CAS No.:	2627-95-4
EINECS No.:	220-099-6
Empirical Formula:	C 8 H 18 OSi 2
Molecular Weight:	186.40
Boiling Point:	139°C [760mmHg]
Flash Point:	19°C
Color and Appearance:	Colorless or yellowish transparent liquid
Density [25°C]:	0.811
Refractive Index [25°C]:	1.412[25°C]
Purity:	99.0%min  & 99.5%min

  Applications It  is used as a linear inhibitor in the formulating of two-part Silicone RTV-2 Addition Curing systems.
Because of the large vinyl content, small amounts are very effective in retarding and controlling the working time or pot life of two-part Addition-Curing Silicone RTVs.
Also, due to its boiling point of 139ºC, it is easily volatilized during curing. A suggested starting formulation is to use 0.25 to 0.50 parts by weight  with 100 parts of the Base Polymer containing the platinum Catalyst.          

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