Snail Scott on fri 31 may 02
At 02:47 PM 5/31/02 -0400, you wrote:
>I'm planning to make a plaster slab to dry clay on. I've just read the
>section on pouring plaster in Vince's book. I'd like to pour on the floor
as
>it is the smoothest surface I have, if I lay down plastic under my wooden
>form and the seal the edges with clay, will the plaster release from the
>plastic?
Yep. I would bring the plastic up and over your
wooden form, though, not just underneath. Clay
around the edges may not be sufficient to keep
the plaster confined unless your form is weighted.
Tape the folds of plastic at the corners so it
will be tidy and plaster won't be trapped in the
folds. (Make it like bed-sheet corners in reverse
and tape well.) It will release just fine without
a release agent.
Or weight the wooden form.
-Snail
john hooker on fri 31 may 02
--- "Longtin, Jeff"
wrote:
> Hey Sarah,
> Shouldn't be a problem. Plaster and plastic
> typically release really well. I
> would just caution you to weigh down your wood
> frame. Sometimes clay alone
> is not strong enough to hold it. Not sure how deep
> you want to pour but
> nothing worse than pouring gallons of plaster only
> to watch the frame raise
> up and plaster spill everywhere.
> Not one of those "surprise" events you want to
> experience!
> Good Luck
> Jeff Longtin
>
> -----Original Message-----
> From: Sarah House
> [mailto:shouse@MCDOWELL.MAIN.NC.US]
> Sent: Friday, May 31, 2002 1:47 PM
> To: CLAYART@LSV.CERAMICS.ORG
> Subject: another plaster question
>
>
> I'm planning to make a plaster slab to dry clay on.
> I've just read the
> section on pouring plaster in Vince's book. I'd like
> to pour on the floor as
> it is the smoothest surface I have, if I lay down
> plastic under my wooden
> form and the seal the edges with clay, will the
> plaster release from the
> plastic?
>
> Sarah House
> --
>
> http://www.SKHPottery.com
>
> PO Box 84
> Little Switzerland, NC 28749
>
> 828-756-1191
>
> Jeff. Simple answer is yes, we always pot pastic
under our work before using plaster. but if your'e
real worried after you've put your cottle around and
held it in place with clay paint the plastic with
liquid soap that acts as a release. Cheers
Hook________________________________________________________________________
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Craig Clark on fri 31 may 02
Another thing to do is to just set the forms up as a flask on the
surface on which you plan to keep the plaster drying slab. Line the plaster
form with plastic as suggested. Pour the plaster and don't worry about the
plastic underneath. Just trim any excess that is overlapping the flask form
with a razor or sharp knife or just leave the flask around the plaster (this
is what I did and it has protected the edges quite well.)
Craig Dunn Clark
619 East 11 1/2 st
Houston, Texas 77008
(713)861-2083
mudman@hal-pc.org
----- Original Message -----
From: "Snail Scott"
To:
Sent: Friday, May 31, 2002 11:38 PM
Subject: Re: another plaster question
> At 02:47 PM 5/31/02 -0400, you wrote:
> >I'm planning to make a plaster slab to dry clay on. I've just read the
> >section on pouring plaster in Vince's book. I'd like to pour on the floor
as
> >it is the smoothest surface I have, if I lay down plastic under my wooden
> >form and the seal the edges with clay, will the plaster release from the
> >plastic?
>
>
>
> Yep. I would bring the plastic up and over your
> wooden form, though, not just underneath. Clay
> around the edges may not be sufficient to keep
> the plaster confined unless your form is weighted.
> Tape the folds of plastic at the corners so it
> will be tidy and plaster won't be trapped in the
> folds. (Make it like bed-sheet corners in reverse
> and tape well.) It will release just fine without
> a release agent.
>
> Or weight the wooden form.
>
> -Snail
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Sarah House on fri 31 may 02
I'm planning to make a plaster slab to dry clay on. I've just read the
section on pouring plaster in Vince's book. I'd like to pour on the floor as
it is the smoothest surface I have, if I lay down plastic under my wooden
form and the seal the edges with clay, will the plaster release from the
plastic?
Sarah House
--
http://www.SKHPottery.com
PO Box 84
Little Switzerland, NC 28749
828-756-1191
Judith I. Marvin on fri 31 may 02
It will Sarah - Just did the same this a.m. Judith
>From: Sarah House
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: another plaster question
>Date: Fri, 31 May 2002 14:47:26 -0400
>
>I'm planning to make a plaster slab to dry clay on. I've just read the
>section on pouring plaster in Vince's book. I'd like to pour on the floor
>as
>it is the smoothest surface I have, if I lay down plastic under my wooden
>form and the seal the edges with clay, will the plaster release from the
>plastic?
>
>Sarah House
>--
>
>http://www.SKHPottery.com
>
>PO Box 84
>Little Switzerland, NC 28749
>
>828-756-1191
>
>___________________________________________________________________________
___
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
_________________________________________________________________
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Longtin, Jeff on fri 31 may 02
Hey Sarah,
Shouldn't be a problem. Plaster and plastic typically release really well. I
would just caution you to weigh down your wood frame. Sometimes clay alone
is not strong enough to hold it. Not sure how deep you want to pour but
nothing worse than pouring gallons of plaster only to watch the frame raise
up and plaster spill everywhere.
Not one of those "surprise" events you want to experience!
Good Luck
Jeff Longtin
-----Original Message-----
From: Sarah House [mailto:shouse@MCDOWELL.MAIN.NC.US]
Sent: Friday, May 31, 2002 1:47 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: another plaster question
I'm planning to make a plaster slab to dry clay on. I've just read the
section on pouring plaster in Vince's book. I'd like to pour on the floor as
it is the smoothest surface I have, if I lay down plastic under my wooden
form and the seal the edges with clay, will the plaster release from the
plastic?
Sarah House
--
http://www.SKHPottery.com
PO Box 84
Little Switzerland, NC 28749
828-756-1191
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Richard Jeffery on fri 31 may 02
yes, but you may get wrinkles, unless plastic is very thick.
I would also have some thought to how far a gallon of liquid plaster can
spread if the clay seal fails....
Richard Jeffery
Web Design and Photography
www.theeleventhweb.co.uk
Bournemouth UK
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG]On
Behalf Of Sarah House
Sent: 31 May 2002 19:47
To: CLAYART@LSV.CERAMICS.ORG
Subject: another plaster question
I'm planning to make a plaster slab to dry clay on. I've just read the
section on pouring plaster in Vince's book. I'd like to pour on the floor as
it is the smoothest surface I have, if I lay down plastic under my wooden
form and the seal the edges with clay, will the plaster release from the
plastic?
Sarah House
--
http://www.SKHPottery.com
PO Box 84
Little Switzerland, NC 28749
828-756-1191
____________________________________________________________________________
__
Send postings to clayart@lsv.ceramics.org
You may look at the archives for the list or change your subscription
settings from http://www.ceramics.org/clayart/
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
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