Our best quality silicone. Its toughness and flexibility together with the choice of curing agent speeds add up to make this Dow Corning silicone a leader in its field. Highly recommended when casting with resins.
Requires Curing Agent: 1kg Base requires 50g, 5kg base 250g and 20kg base 1kg.
Silastic 81-F (Fast) - this is the most common.
Gel Time: 30 minute
De-Mold Time: 5 hours
Silastic 81-R (Resin-resistant) - this is more resistant to polyester resin, so increases the mould–life.
Gel Time: 90 minute
De-Mold Time: 24 hours
Silastic 81-VF (Very Fast) - this really is Very Fast! So only use for specific applications.
Gel Time: 10 minute
De-Mold Time: 1½ hours