Anyone used Alumina plastic for molds?
Moderator: Brad Walker
Anyone used Alumina plastic for molds?
There is a product for the refractory industry for patching up cracks that has a plastic/clay like feel. Coming from a clay background, I was curious as to how good such a material would be for making molds? It has a high content of Alumina bonded with phosphate and silica. I am hoping to be able to mold this around objects for casting purposes. Just wondered how others have used the stuff? Thanks!
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I would give it a try. If there is a problem it will be heat shock. Pure alumina is quite dense and not fast heat friendly, like the alumina in a crucible. On the other hand cement is probably made for faster heat.
Bert
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Bert Weiss Art Glass*
http://www.customartglass.com
Furniture Lighting Sculpture Tableware
Architectural Commissions