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What is the best coating for a plaster mold?

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senkosam View Drop Down
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    Posted: 28 Apr 2013 at 1:12am
Valspar wallboard coating was the best until it was discontinued. Some say wood glue, others say epoxy. What say you?

Frank
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Lefty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lefty Quote  Post ReplyReply Direct Link To This Post Posted: 27 May 2013 at 8:08pm
Two part silicon seems to be a good option for mould making these days...
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Bigriver View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigriver Quote  Post ReplyReply Direct Link To This Post Posted: 27 May 2013 at 10:34pm
Originally posted by senkosam senkosam wrote:

Valspar wallboard coating was the best until it was discontinued. Some say wood glue, others say epoxy. What say you?

Frank
Do you mean as a mold release agent or for making the mold out of?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fishaholic5 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2013 at 12:53pm
Originally posted by Bigriver Bigriver wrote:

Originally posted by senkosam senkosam wrote:

Valspar wallboard coating was the best until it was discontinued. Some say wood glue, others say epoxy. What say you?

Frank
Do you mean as a mold release agent or for making the mold out of?
 
A lot of people seal the plaster mould's to stop them reabsorbing water and to provide a smoother non porous surface to the interior of the mould
 
Cheers
Wal
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