Hobby Time Silicone Rubber (Red) for Metals 1000g
Brand: Hobby Time
Model Number: 6408
The Hobby Time Silicone Rubber (Red) for Metals 1000g from the Modelling Accessories range provides a high quality mould making material ideal for use with casting metals.
Mould Making Compound. This two component, high quality mould making compound is heat resistant to 330c, has good flexibility and gives extremely good definition. Suitable for resins, plaster and especially white metal. Mainly used to make 2-part moulds. Complete with catalyst and instructions.
- Heat resistant 300c
- For resins, plaster & white metal
- 1000g size
Manufacturer: Hobby Time
Model: 6408 Silicone Rubber (Red) for Metals 1000g
Reviewed by David Corden
A bit stingy with the catalyst
The instructions say 2-4% catalyst so I used 3% and my moulds came out spot on, really good stuff and once warmed up transfer great detail from the master. Perfect. Except they only include enough catalyst to use exactly 2%, so I ran out of catalyst with two-thirds of the tin of silicone left. No worries. Edson leaned, I bought another tin and used the recommended 2%. Instantly I had a problem with air bubbles because, and despite tapping away around the vulcanising mould with a hammer, some of them made it into the mould and effectively ruined it. This was further compounded by the fact that patches in the mould did not go off so clearly 2% catalyst is sub-optimal. Annoyingly, hobbytime do not appear to sell the catalyst separately and I don’t know enough about this stuff to select an alternative. It’s a shame, it’s a good product and fairly decent value until you factor in how much silicone you’re losing if you use 3% catalyst for the best results.
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