Silastic Curing Agent (Catalyst) is for the Silastic range of silicones. This clear curing agent is available in 3 types and speeds as detailed below. Added to the base silicone at 5% by weight.
1kg base Silicone requires 50g Curing Agent
5kg base Silicone requires 250g Curing Agent
20kg base Silicone requires 1kg Curing Agent
A fast curing agent is the most popular and is recommended as standard. Ideal for both pouring and brush-on applications.
Gel Time: 30 minute
De-Mold Time: 5 hours
Shore A: 23
Key benefit of 81-R is it produces a silicone more resistant to polyester resin, so increases the mould–life if you are casting resin into your silicone moulds. Ideal as a general purpose cure and for pouring moulds. Also suitable for use with Silastic 3483 Silicone Base
Gel Time: 90 minute
De-Mold Time: 24 hours
Shore A: 19
This really is Very Fast! Only use in specific applications where speed is essential.
Gel Time: 10 minute
De-Mold Time: 1½ hours
Shore A: 25