Condensation-Cure Liquid Silicone Rubber Classification

Liquid silicone rubber does not require complex mixing or molding equipment.

At room temperature or with mild heating, moisture exposure or mixing with a crosslinker

allows it to cure into an elastomer.

By product form or packaging, liquid silicone rubber is classified as one-component or two-component.

By crosslinking mechanism, it is classified as condensation-cure or addition-cure.

Condensation-cure and some addition-cure products form elastomers at room temperature and are called room-temperature-vulcanizing (RTV) silicone rubber.

Most addition-cure products require mild heating for rapid curing and are called low-temperature-vulcanizing (LTV) silicone rubber.

Liquid Silicone Rubber

▲ One-Component

○ Condensation-Cure (RTV)

1. Acetoxy cure

2. Alkoxy cure

3. Oxime cure

4. Amide-releasing cure

5. Amine-releasing cure

6. Acetone-releasing cure

○ Addition-Cure (LTV)

▲ Two-Component

○ Condensation-Cure (RTV)

1. Alkoxy cure

2. Hydrogen-releasing cure

3. Amine-releasing cure

○ Addition-Cure (RTV, LTV)