Concrete: The Silicone Plaster Jacket Mould

I have now poured the silicone into the two halves of the mould. Below you can see the resulting mould with the plaster jackets surrounding the silicone. The process of making a plaster jacket surrounding a silicone mould is a really useful method of mould-making as you get a extremely durable and accurate mould at a relatively low cost due to the silicone only being used to surround the object in a thin layer.

The mould is now ready for the concrete to be poured into it.

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