When casting gold or platinum in a cast iron mold is a release agent needed and if so what agent should I use

Question

We are talking about temperatures in the 5000 degree F range so it can't be something that would burn at temps below that.

Answer 1

use a Silicone Sapray usually silicones are known to act as good release agents

Answer 2

I certainly have been a concrete mixer driving force for years,, All you elect is a pump combination type concrete without the pee rock and upload fibermesh to it. No rocks in that and is only is robust as any concrete. you may pour or trowel it..additionally you may attempt hydralic cement to solid with.it particularly is a few very solid belongings you will get at hardware shops.

Answer 3

Butter