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Silastic™ Curing Agent 5%

SKU: CUR81050

Curing Speed: Slow (81-R)
Size: 50g
Sale price


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. The shelf-life of this product is 9 months.

  • 1kg base Silicone requires 50g Curing Agent
  • 5kg base Silicone requires 250g Curing Agent
  • 20kg base Silicone requires 1kg Curing Agent

Larger Qty Drums (Price per kg) available on request! Enquire with us for more information.

Slow (81-R)

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

  • Working Time: 90 minutes
  • Cure Time: 24 hours
  • Shore A: 19

Fast (81-F)

A fast curing agent is the most popular and is recommended as standard. Ideal for both pouring and brush-on applications.

  • Working Time: 30 minutes

  • Cure Time: 6 hours

  • Shore A: 23

Very Fast (81-VF)

This really is Very Fast! Only use in specific applications where speed is essential. The 10 minute working time is great for building up layers in brush-on applications, but you really do only have 10 minutes to work with it!

  • Working Time: 10 minutes
  • Cure Time: 2 hours
  • Shore A: 25

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