Polydimethylsiloxane Vinyl Terminated

Description :

Overview of Polydimethylsiloxane Vinyl Terminated

Vinyl terminated Polydimethylsiloxane (Vi-PDMS and 68083-19-2, CAS) is a silicone reactive fluid that contains vinyl groups on the chain's ends. This allows hydrosilylation crosslinking to make high-strength silicon Elastomers. Polydimethylsiloxane

vinyl terminated structure features repeating [-Si(CH3)2O-] units capped with -CH=CH2, offering viscosities from 100-100,000 cSt, low volatiles, and excellent weather/chemical resistance. Polydimethylsiloxane vinyl terminated uses include base polymer for addition-cure RTV silicones, LSR, gels, and modifiers for coatings/adhesives.​

Applications of Polydimethylsiloxane Vinyl Terminated

Silicone Rubber & Elastomers

Serves as base for platinum-cure liquid silicone rubber (LSR), HTV silicone, and RTV sealants/gels, improving tear strength, hardness, and electrical insulation in gaskets, molds, electronics. Use with Zinc Stearate for processing.​

Coatings, Adhesives & Composites

Modifies polyurethanes, acrylics, epoxies for UV/weather resistance, low modulus, and toughness; in composites for reinforcement. Enhance resins with Cobalt Octoate or 1,4-Butanediol.​

Other Industrial Uses

In lubricants, defoamers, medical devices, aerospace seals; check categories, applications, homepage.​

Safety & Handling Guidelines

• Store cool, dry, sealed away from strong acids/bases, metals, oxidizers; stable under inert conditions.​
• Wear gloves, goggles; avoid prolonged skin/eye contact or vapors—may irritate; low toxicity.​
• Combustible; dispose per regulations.​

Where to Buy Polydimethylsiloxane Vinyl Terminated?

Polydimethylsiloxane Vinyl Terminated Manufacturer

Vinyl-terminated PDMS fluids for LSR, RTV, and silicone modifiers.​

Polydimethylsiloxane Vinyl Terminated Supplier & Distributor

Clear liquids in drums for rubber, coatings industries.​

ChemicalBull supplies for plastic & rubber chemicals, supporting silicone production.​

Polydimethylsiloxane Vinyl Terminated MSDS

Low hazard; ventilate for vapors, no known carcinogen.​

Frequently Asked Questions (FAQs)

1. What is Polydimethylsiloxane Vinyl Terminated?

   Reactive vinyl-end PDMS for addition-cure silicones.
   
   

2. Polydimethylsiloxane vinyl terminated uses?

   Polydimethylsiloxane vinyl terminated uses in LSR, RTV rubber, coatings, adhesives for strength/weather resistance.
   
   

3. Polydimethylsiloxane vinyl terminated structure?

   Polydimethylsiloxane vinyl terminated structure: CH2=CH-(Si(CH3)2O)n-Si(CH3)2-CH=CH2.
   
   

4. How to store safely?

   Cool, dry, inert; avoid contaminants.
   
   

5. Available for bulk?

   Yes, various viscosities for industrial RTV/LSR