Date: Sun, 21 May 2006 10:27:09 EDT
To: puptcrit-AT-lists.driftline.org
Subject: Re: [Puptcrit] Differences between Clays...


More trouble....
Mathieu-
If you coat the plaster first, with a slightly thinned application of 
shellac, the plaster is sealed, and will not absorb the oils in your clay. But the 
shellac has to be thinned and not applied direct from the can. 
Several thin layers are best. The plaster readily absorbs the shellac which 
seals it. 

IF - you apply too thick a layer, there is the remote possibility that the 
shellac will flake off. 

Best,
Fred T.
> 
> Hi Daniel.
> I guess I was not precise enough.
> I meant to say that when I put oil-based clays over my positive plaster
> forms (actor's face cast), the oil in the clay gets absorbed by the plaster.
> 

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