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David Wright
Joined:
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16-Aug-2006
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Started On : 21-Aug-2006 at 07:30:02 AM, #Views : 10765
Topic Subject : Re: Cotton Batton |
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Thanks so much just the info i was looking for.
Dave
Quoting aliforum@lifecasting.org:
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>
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>
> Hello David Wright
>
>
> Post Date : Monday 21st of August 2006 12:00:02 AM
> Posted by : "Essensual Life Sculpture" doug@essensualsculpture.com
>
> Re: Cotton Batton:--
> Sorry I'm a little late in responding to this thread. Better late than never
>
> I guess.
>
> We've had poor results with cheesecloth as a bonding agent between alginate
> and plaster. If the cheesecloth fibers are flush with the alginate or below
> the surface, then obviously there is nothing for the plaster to adhere to. If
> the fibers protrude out of the alginate enough for the plaster to get a hold
> of, then there is no significant bond with the alginate. I guess the trick
> would be to have ripples in the cheesecloth, with one side of the ripples
> embedded in the alginate and the other side embedded in the plaster.
> Difficult
> to pull that off in practice, however.
>
> I've experimented with a number of different materials for this use, and am
> not very impressed with cotton either. Even if you get the cotton fibers
> embedded into the alginate before it begins to harden, it takes very little
> force to pull them out of the alginate when pulling the mold off the model.
>
> The best material I've found for this use is felt, just common ~1/16" thick
> felt from a fabric store. If you get it pressed into the alginate before it
> hardens, it will provide a 100% effective bond with the alginate. By that I
> mean that any attempt to separate the two will tear the alginate long before
> the felt will relinquish its death grip.
>
> Ditto with the plaster, but the trick is to not let the alginate soak all the
> way through the felt. The plaster from the gauze will penetrate dry felt and
> produce a strong bond with it. Maybe not as strong as the bond between the
> alginate and felt, but only because the gauze has little plaster to
> contribute
> to the task of saturating the felt. If one was to smear some mixed plaster
> into the felt before the gauze goes on, it would make a formidable bond...
> but
> that's not necessary, as the gauze bonds sufficiently well to the felt by
> itself.
>
> Before beginning a bodymold, we cut felt into strips about 1 1/4" wide x 10"
> long. Just before the alginate begins to kick, we press the strips in
> beginning with the perimeter of the mold. If nothing else, getting the edges
> bonded in this manner will make a big difference when you pull the mold off
> the model (no more loose edges). If there's time, we criss-cross the alginate
> with more felt in areas that might be likely to pull away from the plaster
> during the mold removal. Cotton is faster, and is used between the felt.
>
> When modeling a large area, if one has the luxury of an assistant, they could
> help by pre-wetting one side of the felt strips with alginate. This would
> help
> them adhere better if the alginate begins to kick before you're done.
>
> Doug DuBois
>
>
> aliforum@lifecasting.org wrote:
> >
> > Hello Essensual Life Sculpture
>
> >
> >
> > Post Date : Wednesday 19th of July 2006 03:08:36 AM
> > Posted by : "Diane Rossong" Diane@lastingimpression.net
> >
> > Re: RE: Re: Cotton Batton:--
> > Thanks for bring that up I have actually been have a little bit of an issue
> with the cheese cloth. I bit of an imprint of it came out on my last torso
> casting a couple of weeks ago. I will certainly try the 2 layers like you
> descibed Bill. I also use the algislo, it does work great.
> > Has anyone used both? Cheese cloth vs cotton or mandella wool? Since I do
> these castings by myself I am wondering if using the cotton/wool would be
> faster for me to apply?
> > I also have a seperate question.
> > Does everyone use plaster bandages? The first one I did, I put the cheese
> cloth on and then put a few layers of fast setting extra hard gypsum. 10 min
> set up. I think it worked great, it also may have been beginners luck. The
> castings after that I have put both bandage and then gypsom, it might be
> overkill. ?? I just figure the extra cement on top would stop it from loosing
> it's true form.
> >
> > I have another one in a couple of weeks and would really like to make it go
> a little smoother and have better results
> >
> > Thanks
> >
> > Diane
>
>
>
> ALI is an international organization whose members are engaged in the art and
> creative industries. Its purpose is to promote the art of life casting
> create public awareness of this unique art form, provide its members with
> forums to exchange information, resources to enhance their effectiveness and
> advance opportunities for their artistic success.
>
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