I'm stuck with choosing the type of plaster for a sculpture I'm planning to carve out of a plaster block.
The names under which they sell plaster tend to address their purpose in construction and don't really tell me much about their properties. The figures on the information sheet don't mean anything to me, either.
I think hard plaster would be best for the purpose as I would like to have some detail and have the sculpture stronger overall. So what I've found out is:
- it is alpha plaster I should be looking for
- they rarely mention anything about alpha or beta plaster on the package
- they usually mix alpha and beta plasters in the market products
- I should better look at the information sheet to find out about the strength, hardness, etc of the plaster
Could someone tell me what I should be looking for when choosing the plaster?
Eventually, if I have to choose between Plaster of Paris and construction gypsum would the second be a better choice for the purpose?