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Mould Making Silicone
back to main Molding silicone usually comes in a two component form Part A base and a Part B accelerator which after mixing in the proper ratio cures at ordinary room temperatures to a flexible, strong RTV (room temperature vulcanizing) rubber mould.

Silicone rubber has the ability to retain very fine detail. Fortunately most solvents do not attack silicone. However one of the most important features is that almost nothing will stick to silicone. This simplifies the mould making procedures in that no release agents or model pre-preparation are usually necessary.

In fact the only reason why you would not use molding silicones for most of your mould making functions is cost. If your silicone costs are high, examine the use of polyurethane as an alternative.

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