plaster water ratio

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Liam
Posts: 90
Joined: Sun Mar 09, 2003 10:25 pm
Location: Houston, TX

plaster water ratio

Post by Liam »

I moved. Ive lost my firing log. My life may be over.

anyways, now I need a recipe for plater water for 1500 deg casting. I need a volume one not weight. Does anyone have one? thanks if you can help.

Liam
W.W.S.D.
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Bert Weiss
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Joined: Tue Mar 11, 2003 12:06 am
Location: Chatham NH
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Re: plaster water ratio

Post by Bert Weiss »

Liam wrote:I moved. Ive lost my firing log. My life may be over.

anyways, now I need a recipe for plater water for 1500 deg casting. I need a volume one not weight. Does anyone have one? thanks if you can help.

Liam
As much plaster mix as you can get in the water and still manage to get a pour with some resolution. The less plaster to water, the easier it is to pour and the weaker the mold. More plaster, stronger mold.
Bert

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charlie holden
Posts: 260
Joined: Thu Mar 13, 2003 8:26 pm
Location: Atlanta

Post by charlie holden »

Mixes based on volume are not accurate since a given volume of dry powder may be firmly packed or lightly packed. If you don't have a scale just pour the dry mix into the water untill it peaks, let it slake for 5 minutes then mix.

ch
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