68083-19-2

Basic information

• Product Name: VINYL TERMINATED POLYDIMETHYLSILOXANE
• Synonyms: dowcorning3-4939;dowcorning6646;ge3175;Polydimethylsiloxane,vinylendblocked;ps441;ps442;ps448;SiloxanesandSilicones,di-Me,vinylgroup-terminated
• CAS NO: 68083-19-2
• EINECS: 220-099-6
• Product Categories: PDMS Elastomers/ResinsPolymer Science;Polysiloxanes;Self Assembly&Contact Printing;Silicones;Stamps for Nanoprint Lithography&Microcontact Printing
• Mol File: 68083-19-2.mol
• Article Data: 0

Chemical Properties

• Melting Point: >-60°C
• Boiling Point: >93 °C(lit.)
• Flash Point: >230 °F
• Appearance: /
• Density: 0.965 g/mL at 25 °C(lit.)
• Refractive Index: n20/D 1.4052
• Storage Temp.: 2-8°C
• CAS DataBase Reference: VINYL TERMINATED POLYDIMETHYLSILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: VINYL TERMINATED POLYDIMETHYLSILOXANE(68083-19-2)
• EPA Substance Registry System: VINYL TERMINATED POLYDIMETHYLSILOXANE(68083-19-2)

Safety Data

• WGK Germany: 3
• RTECS: VW3300000
• TSCA: Yes
• Hazardous Substances Data: 68083-19-2(Hazardous Substances Data)

Usage

Physical form

Divinyl functional reactive silicone fluid.

Features and Benefits

Polymerized product provides non-corrosive shield against moisture, dirt and contaminates for electrical components. Polymer may be heat or room temperature cured. Polymerization produces no volatile gases.

Uses

Mold-making elastomers and encapsulants and sealants for electronic components. Vinyl terminated polymers are most often employed in 2-part addition cure silicone elastomers.