What is Vinyl Silicone Oil CAS 68083-19-2?

Vinyl Silicone Oil is a vinyl-functional polydimethylsiloxane fluid, also known as vinyl-terminated PDMS or ViPDMS, with CAS 68083-19-2 and EC 614-275-5. It is supplied as a colorless to transparent liquid in different viscosity grades and is used as a reactive silicone raw material.

Where is Vinyl Silicone Oil mainly used?

It is mainly used as a base polymer or reactive component in addition-cure silicone rubber and liquid silicone rubber systems. Typical applications include two-part RTV silicone, LSR, specialty silicone coatings, encapsulants, sealants, and industrial formulations requiring vinyl reactivity.

Why do viscosity and vinyl content matter?

Vinyl Silicone Oil is a polymer family rather than a single fixed molecule. Viscosity affects processing and final elastomer properties, while vinyl content controls reactive group availability for addition-cure or modification systems. The two parameters should be selected together according to the cure chemistry and target formulation.

How does Vinyl Silicone Oil differ from Hydrogen Silicone Oil?

Vinyl Silicone Oil provides vinyl groups and is used as the base polymer or vinyl-functional component. Hydrogen Silicone Oil provides Si-H groups that react with vinyl groups during hydrosilylation. They are complementary silicone fluids in addition-cure systems, not interchangeable materials.

How should Vinyl Silicone Oil be stored and handled?

Store it in tightly closed, clean containers in a cool, dry, well-ventilated area away from moisture, contamination, direct sunlight, excessive heat, and incompatible curing agents. Maintain package integrity during storage and transport, and use appropriate handling practices for a liquid silicone fluid.

Vinyl Silicone Oil CAS 68083-19-2

Vinyl Silicone Oil is generally identified as vinyl-terminated polydimethylsiloxane, a vinyl-functional silicone fluid used as an industrial material rather than a simple commodity solvent or general-purpose oil. In supply practice, it is commonly used in silicone rubber processing, liquid silicone rubber systems, and selected modification systems where vinyl reactivity and silicone backbone properties are required. This product is typically supplied as a colorless transparent liquid, with viscosity and functional specification arranged according to application needs. Standard export packaging, bulk supply, and routine documents such as COA, TDS, and SDS can be supported for industrial orders.

CAS: 68083-19-2
Synonyms: Vinyl-terminated polydimethylsiloxane; Vinyl terminated PDMS; Vinyl silicone oil
Einecs: 614-275-5
Grade: Industrial Grade
Package: Standard Export Packaging

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Packaging

4 Storage

Physicochemical Properties

Item	Typical Description
Appearance	Colorless to transparent liquid
Odor	Mild characteristic odor
Chemical Type	Vinyl-functional polydimethylsiloxane fluid
CAS Number	68083-19-2
Solubility	Typically insoluble in water; compatible with selected organic silicone system components
Viscosity	Available in different viscosity ranges depending on grade and application
Reactive Functionality	Contains vinyl functional groups suitable for addition-cure and modification systems
Supply Form	Liquid silicone fluid

Typical Applications

Base polymer or reactive component in silicone rubber and liquid silicone rubber systems
Raw material for addition-cure silicone formulations and crosslinking-related processing systems
Modifier for specialty silicone materials, coatings, and related polymer systems
Functional silicone intermediate for industrial formulations requiring vinyl reactivity

Where a hydrogen-functional silicone fluid is needed instead of vinyl reactivity, Hydrogen Silicone Oil is a separate material used in corresponding silicone formulation systems.

Packaging

Vinyl Silicone Oil is commonly supplied in sealed industrial packaging suitable for liquid silicone materials. Standard export packaging can be arranged in drums or other supply formats according to viscosity grade, order volume, and shipping requirements. Clean packaging and proper sealing are recommended to maintain product consistency during storage and transport.

Storage

Store in a cool, dry, and well-ventilated place. Keep the container tightly closed and protect the product from moisture, contamination, direct sunlight, and excessive heat. Maintain package integrity during storage and transport.

FAQ - Technical & Supply Chain

Q:
What is Vinyl Silicone Oil CAS 68083-19-2?

A: Vinyl Silicone Oil is a vinyl-functional polydimethylsiloxane fluid, also known as vinyl-terminated PDMS or ViPDMS, with CAS 68083-19-2 and EC 614-275-5. It is supplied as a colorless to transparent liquid in different viscosity grades and is used as a reactive silicone raw material.
Q:
Where is Vinyl Silicone Oil mainly used?

A: It is mainly used as a base polymer or reactive component in addition-cure silicone rubber and liquid silicone rubber systems. Typical applications include two-part RTV silicone, LSR, specialty silicone coatings, encapsulants, sealants, and industrial formulations requiring vinyl reactivity.
Q:
Why do viscosity and vinyl content matter?

A: Vinyl Silicone Oil is a polymer family rather than a single fixed molecule. Viscosity affects processing and final elastomer properties, while vinyl content controls reactive group availability for addition-cure or modification systems. The two parameters should be selected together according to the cure chemistry and target formulation.
Q:
How does Vinyl Silicone Oil differ from Hydrogen Silicone Oil?

A: Vinyl Silicone Oil provides vinyl groups and is used as the base polymer or vinyl-functional component. Hydrogen Silicone Oil provides Si-H groups that react with vinyl groups during hydrosilylation. They are complementary silicone fluids in addition-cure systems, not interchangeable materials.
Q:
How should Vinyl Silicone Oil be stored and handled?

A: Store it in tightly closed, clean containers in a cool, dry, well-ventilated area away from moisture, contamination, direct sunlight, excessive heat, and incompatible curing agents. Maintain package integrity during storage and transport, and use appropriate handling practices for a liquid silicone fluid.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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