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- Red Silicone easy mix 50:50 (33 shore A) 2kg pack
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Silicone Rubber for moulding and casting. A general purpose mould making silicone(33 shore A) easy mix 50:50. Can also be used to make realistic body casts direct from an Alginate mould. Mix equal amounts of silcone together until the colour is even. There is a graduated scale on the side of each bottle to help measure equal amounts, you can also stand the bottles side by side to check the level is equal. If y
ou have a problem with air bubbles in the mix, mix carefully and not to quickly. Try pouring equal amounts of silicone into a grip seal bag, squeaze out the excess air and seal off with tape, then mix in the bag. When the colour is even snip a corner and pour out the mixture. Silicone moulds can be used to bake polymer clay, while still in the mould. For use with food treat in oven 120c - 130c for 6 to 7 hours.
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A. you can use our silicone by making a post treatment in a ventilated oven for 6-7 hours at 120-130 C
Q. I've used the THIXO 40LT mix before and found it too viscous to pour, is this option better, and will it handle the temperature if I create moulds for multiple castings of lead items?
Asked by Ben - 19/09/2011
A. For spec on Red silicone see http://en.zhermack.com/Industrial/Jewellery/prodotti/HT_33_Red.kl
Lead melts at 600.61 K, 327.46 °C, 621.43 °F this would be too high for most silicones. Try the heat resisting silicone, see http://www.fredaldous.co.uk/heat-resistant-silicone-rubber-250g.html
You can make simple moulds using cuttlefish bone from a pet shop. Because cuttlebone is able to withstand high temperatures and is easily carved, it serves as a mold-making material for small metal casting. Prepare cuttlefish bone for use as a mold by cutting it in half and rubbing the two sides together until they fit flush against one another. Then the casting can be done by carving a design into the cuttlefish bone, adding the necessary sprue, melting the metal in a separate pouring crucible, and pouring the molten metal into the mold through the sprue. Finally, the sprue is sawn off and the finished piece is polished.
Q. how long does it take for Red Silicone easy mix 50:50 (33 shore A) to set or cure
Asked by techa - 24/08/2011
A. Working time at 23 °C (73 °F) : 20 - 22 minutes and Setting time at 23 °C (73 °F) : 3h
Earn 1 Monkey Point for each approved tag you make.
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