File puptcrit/puptcrit.0509, message 371


To: <puptcrit-driftline.org-AT-lists.driftline.org>
Subject: Re: [Puptcrit] Foam Latex...room temp cure
Date: Tue, 27 Sep 2005 15:29:11 -0700


My 2 cents.

I have used Bondo, thinned with polyester resin, and fiberglass to make my 
molds in using Urethane flex foams. (yes I know, toxic, but makes one long 
lasting and hard as rock mold and light weight.  Boys and girls this would 
be the time to make sure you have a respirator.)    Make sure that your 
surfaces of your mold are sealed really well.  Also, make sure that you use 
a release product that is formulated for Urethane.

I got introduced to the stuff when I was an intern at NASA in the model 
shop.

Also, I wise word on ordering material from smooth on.  Check and see if 
there is a distributor near you.  You could save a lot on shipping!

Cheers,

William



----- Original Message ----- 
From: "Paul Gnuyen" <gnuyen-AT-gnuyen.org>
To: <puptcrit-driftline.org-AT-lists.driftline.org>
Sent: Tuesday, September 27, 2005 2:51 PM
Subject: Re: [Puptcrit] Foam Latex...room temp cure


> I'm not familiar with silicone molds, are they made the same as plaster
> ones?  Would using ultracal 30 or other gypsum based material for the
> molds be a waste since the molds won't need to be heat resistance?  I
> guess what I'm saying is, I'm probably going to buy some cold 2 part
> urethane foam for hand puppet experimentation purposes, so what is the
> cheapest mold material I can get easily get that will not require
> acrobatics to use?  Also, density suggestions good for hand puppets in
> particular would be very appreciated.
>
> Thanks guys!!
>
>
> On Wed, 2005-09-28 at 07:43 +1000, Kismet wrote:
>> Im not familiar with FlexFoam but I have been an advocate of urethane 
>> foams
>> for a number of years. They can be treated in exactly the sane way as any
>> latex foam and come in a far greater range of shore hardnesses and 
>> density.
>> (You can make your puppet heads with the hardness of a modern cars bumper
>> bar or the softness of a baby's proverbial). It can also be self skinning 
>> or
>> not.
>> Two problems I have encountered is A) Urethane intolerance in the end
>> user.....about the same as latex intolerance, I provide soft white cotton
>> gloves in either case and
>> B) Urethane sticks (and boy does it stick) to plaster molds....three
>> solutions, I skin the plaster mold with latex,  I spray the mold (when 
>> using
>> a plaster mold) with a release agent or I use a silicon mold.
>> After years of pampering GM Latex foam it is a real joy to be able to 
>> just
>> say "hey! I'll slap some foam in this and see how it goes"
>> Im also not familiar with alumilite but for hard shell heads I use
>> "Easycast" a 30 second slush cast polymer. I can run 3 5" heads in 
>> silicon
>> molds at a time by myself and demold in 30 minutes, 4 "layers" being 
>> enough
>> to produce a good solid shell. I usually lay the molds over to allow any
>> residual to puddle in any delicate areas, noses, chins etc.
>>
>> Daniel "I only said all this because I love the sound of my own voice"
>>
>>
>> ----- Original Message ----- 
>> From: "Paul Gnuyen" <gnuyen-AT-gnuyen.org>
>> To: <puptcrit-driftline.org-AT-lists.driftline.org>
>> Sent: Wednesday, September 28, 2005 6:42 AM
>> Subject: RE: [Puptcrit] Foam Latex...room temp cure
>>
>>
>> > I'm sorry, what's the difference between Latex and Urethane?
>> > FlexFoam-iT! Series Flexible Urethane Foam looks really easy to use an
>> > good alternative to the methods I was reading about, but are they good
>> > for puppets?  Can it be flocked?  What density is good for puppetry?
>> >
>> > Thanks guys!
>> >
>> > _______________________________________________
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>> >
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>>
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