Date: Fri, 11 Dec 2009 13:53:16 -0500 From: Paul Lecuyer <drawbridgepuppets-AT-gmail.com> To: puptcrit-AT-puptcrit.org Subject: Re: [Puptcrit] neoprene problems Hi Elizabeth: It is true, that weather can affect the process, however, since we're in New England and can't wait for warm weather to proceed with puppet making, I place my plaster molds on radiators to warm them prior to pouring the slip. Also, after the excess has poured out, I keep the molds in a very warm area. The heat gets to the inside of the molds and dries them nicely. I make sure that they have dried adequately before pulling the mold apart, otherwise the neoprene could stick and cause indentations. I hope you have a radiator! Paul On Fri, Dec 11, 2009 at 1:45 PM, Charles Taylor <cecetaylor-AT-verizon.net>wrote: > > =93I'm having an unexpected problem with my neoprene slip casting, and > am hoping someone can help. > > I am working with two part plaster molds which I have used before > with good results. I've always pulled really nice neoprene heads from > these exact molds. Now however, when I pull the mold apart, the > casting is stretching along the seam line. This happens no matter how > careful I am, or whether the slip cast is thicker or thinner. When > I've finished extracting the casting from the mold, an indentation > remains where the stretching occurred, about 1/4 inch wide down to > nothing, and of course this doesn't go away upon drying. > > I'll be able to fill the gully and sand away all signs, but I really > don't want this to happen in the first place since it is a mild > distortion in the face. I'm completely baffled and really hope > somebody has the answer. > > Let me know! Thank you.=94 > > -Elizabeth Luce > > > Elizabeth, Is this occurring during this wet weather? If so, that is the > problem. It works best if you work with neoprene during warm, dry weather. > The dampness prevents the plaster mold from working as well. The whole > process is dependent on the plaster mold absorbing moisture from the > neoprene. My advice is to wait until warm weather returns before working > with neoprene. > > Charles Taylor > > _______________________________________________ > List address: puptcrit-AT-puptcrit.org > Admin interface: http://lists.puptcrit.org/mailman/listinfo/puptcrit > Archives: http://www.driftline.org > > _______________________________________________ List address: puptcrit-AT-puptcrit.org Admin interface: http://lists.puptcrit.org/mailman/listinfo/puptcrit Archives: http://www.driftline.org
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