Hermes2020
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Has anyone here experimented with acrylic-modified calcium sulphate composites? They are available under different names, such Jesmonite, from the company in the UK that invented it about 40 years ago. Other brands I know of are Acrylic One, manufactured in the Netherlands, and Material One, from AMT Composites in South Africa. It is an acrylic-modified calcium sulphate formulation that sets hard and can be demoulded in less than an hour. The cured material is much harder than plaster and cannot be scratched easily; one can make outdoor sculptures and architectural elements from it. I have some projects in mind that will be difficult to execute in my usual rapid set concrete formulation, so I have purchased a few kilos of the product to do some experiments.
What I have in mind is a 1.6 metre high outdoor version of my dancer sculpture I posted here:
https://creativespark.art/threads/the-dancer-concrete-sculpture.7476/
The original is only 460mm high, so it was no problem making it in solid concrete. This would be impractical in a sculpture of 1600mm, for obvious reasons. Trying to make it hollow with a 15mm concrete shell is a possibility, but I feel that a Jesmonite/fibreglass composite shell would be more practical.
I would appreciate any comments and suggestions from anyone who has used Jesmonite or its equivalents.
What I have in mind is a 1.6 metre high outdoor version of my dancer sculpture I posted here:
https://creativespark.art/threads/the-dancer-concrete-sculpture.7476/
The original is only 460mm high, so it was no problem making it in solid concrete. This would be impractical in a sculpture of 1600mm, for obvious reasons. Trying to make it hollow with a 15mm concrete shell is a possibility, but I feel that a Jesmonite/fibreglass composite shell would be more practical.
I would appreciate any comments and suggestions from anyone who has used Jesmonite or its equivalents.
