World class silicones for worldwide solutions

Vinyl Siloxanes


Vinyl-functional siloxanes from CHT are primarily used in two-component addition-curing silicones. CHT's vinyl functional siloxanes can be crosslinked with a hydrogen siloxane and CHT's ALPA KAT.

The addition curing mechanism leads to minimal shrinkage during cure.


  • One of the base polymers for addition-curing systems
  • Viscosity modifier
  • Improves mechanical properties
  • Protects against moisture and humidity
  • Resistant to aging and weathering
  • Low D4; D5; D6 content

Finding the right silicone for your application is not limited to CHT’s product portfolio. Our technical team will partner with you to either modify specifications in a current product or custom formulate a new one to meet your exact requirements.

For technical assistance or sample requests, please visit our contact page.

Product Listing

Code Description Request Sample TDS SDS
HANSA SFA 42100 End capped vinyl siloxanes
HANSA SFA 42102 End capped vinyl siloxanes
HANSA SFA 42200 End capped vinyl siloxanes
HANSA SFA 42202 End capped vinyl siloxanes
HANSA SFA 42500 End capped vinyl siloxanes