File puptcrit/puptcrit.0811, message 473


To: <puptcrit-AT-puptcrit.org>
Date: Fri, 28 Nov 2008 10:10:56 -0500
Subject: Re: [Puptcrit] clay from paper mache


Hi Paul.
Yes, a release layer is the way to go usually.

Plastic wrap is the best I've ever tried, the insides are always clean 
afterwards, and the releasing step is quick. Two layers of paper is usually 
too few layers, giving a shell that is not so table to withstand the 
separation and re-assembly without warping.

But to fix your current problem:
If you used potter's clay (not oil based), there probably won't be a problem 
over time, as long as you remove all lumps, and what remains is only a 
powder.

If you used an oil-based clay, try exposing the paper mache to the cold for 
a little while, this will harden the clay and make it brittle, therefore 
easier to break off in chunks.

Be careful, a cold paper mache, if make with white glue, is also more 
brittle as long as it's cold. 

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