kelvin2164
Well-Known Member
- Joined
- May 10, 2014
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I'm having trouble with my moulds staying together.
I've made my sand according to guides on the web. Fine sand with about 10% bentonite. But the moulds are very delicate and fall apart easily. I can cast aluminium and brass in them but quality is not good.
I bought my bentonite on Ebay as a "beauty" treatment. Maybe it's not true bentonite?
Does a bit of oil help it stick together better?
I've made my sand according to guides on the web. Fine sand with about 10% bentonite. But the moulds are very delicate and fall apart easily. I can cast aluminium and brass in them but quality is not good.
I bought my bentonite on Ebay as a "beauty" treatment. Maybe it's not true bentonite?
Does a bit of oil help it stick together better?