I have been trying to find out what kind of plaster to use for
loss wax silver casting without much success.
Patrick… You made my heart jump right up in my throat!!! PLASTER
is not INVESTMENT!!! You can hurt yourself real bad if you
centrifugal cast using plaster. It doesn’t have the strength of
investment and can easily blow the end out of the flask covering
everything with hot metal. Hopefully the caster is enclosed but even
then you could get badly burned. The old saying is “Hot Metal Hunts A
I would even hesitate to try slush casting with plaster. If it is
holding water…and you add hot metal… that makes steam… if the
steam is inside the plaster… BANG! you have a little explosion that
again…could cover you with molten metal.
If you are just starting out… which obviously, I think you are…
order yourself some Kerr Satincast 20 Investment. It isn’t expensive
and is made for casting.
Jewelry making is wonderful… but can be very dangerous! Acids,
flames, molten metal,… use all these with great caution.