plaster of paris mold for aluminum


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Posted by Rob Frink on August 30, 1999 at 08:06:22:

Being a green sand caster, I have no experience with any investments methods, however, I have an aluminum job that cannot easily be done in sand due to the pattern and core shapes.

My question is: Can I use plaster of paris to make a "die" and do a die casting? Do I need to mix in some silica for a refractory.

Basically I'm making 2 duplicates of an existing piece.

Thanks for any input!


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