Diane Serley on thu 25 sep 03
I'm a newbie/lurker and I hope that someone can answer this (probably easy)
question. Why does Magic Water (water/sodium silicate/soda ash) work to
join clay pieces together? As best as I can understand what sodium silicate
is/does, its a deflocculant... meaning it prevents flocculation (the
creating of a bond by small particles of the clay structure)
So why does something that prevents the creating of a bond... create a bond?
Ababi on fri 26 sep 03
I will try to explain you. I shall might use none professional terms.
When we make the pot, mug the particles are in one direction, actually
to achieve it you wedge the clay before throwing!
When we make the handle pulling, extrudering or coiling the particles
are in their own - self direction. The particles of the handle and the
mugs are in different direction.
The defloculant breaks the lines the rows, of both parts and allows the
clay- parts to unite!
USP ( United Situation of Pottery!)
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910
http://www.matrix2000.co.nz/Matrix%20Demo/Ababi.htm
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Diane
Serley
Sent: Thursday, September 25, 2003 9:58 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Why does Magic Water work?
I'm a newbie/lurker and I hope that someone can answer this (probably
easy)
question. Why does Magic Water (water/sodium silicate/soda ash) work to
join clay pieces together? As best as I can understand what sodium
silicate
is/does, its a deflocculant... meaning it prevents flocculation (the
creating of a bond by small particles of the clay structure)
So why does something that prevents the creating of a bond... create a
bond?
________________________________________________________________________
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Carolyn Bronowski on fri 26 sep 03
Hello clayarters--I have to respond. I use Magic water all the time and it
works perfectly for me. People have asked why does this solution work so
well--and my answer, because it's Lana's (Wilson) magic water. Carolyn
-----Original Message-----
From: Diane Serley [mailto:DMSerley@AOL.COM]
Sent: Thursday, September 25, 2003 12:58 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Why does Magic Water work?
I'm a newbie/lurker and I hope that someone can answer this (probably easy)
question. Why does Magic Water (water/sodium silicate/soda ash) work to
join clay pieces together? As best as I can understand what sodium silicate
is/does, its a deflocculant... meaning it prevents flocculation (the
creating of a bond by small particles of the clay structure)
So why does something that prevents the creating of a bond... create a bond?
____________________________________________________________________________
__
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.
Chris Morgan on fri 26 sep 03
Sodium silicate hardens when it dries. So perhaps it acts as a glue?
I've head of people filling cracks or unwanted gaps in sculptural work by
mixing sodium silicate with calcined clay and using that to putty in the
crack. I wouldn't trust its use it in pottery though. Score and slip,
when done properly, works fine.
Chris Morgan
On Thu, 25 Sep 2003 15:58:18 -0400, Diane Serley wrote:
>I'm a newbie/lurker and I hope that someone can answer this (probably
easy)
>question. Why does Magic Water (water/sodium silicate/soda ash) work to
>join clay pieces together? As best as I can understand what sodium
silicate
>is/does, its a deflocculant... meaning it prevents flocculation (the
>creating of a bond by small particles of the clay structure)
>
>So why does something that prevents the creating of a bond... create a
bond?
>
>__________________________________________________________________________
____
>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.
Paul Lewing on fri 26 sep 03
on 9/25/03 11:58 AM, Diane Serley at DMSerley@AOL.COM wrote:
> Why does Magic Water (water/sodium silicate/soda ash) work to
> join clay pieces together? As best as I can understand what sodium silicate
> is/does, its a deflocculant... meaning it prevents flocculation (the
> creating of a bond by small particles of the clay structure)
>
> So why does something that prevents the creating of a bond... create a bond?
Diane, the sodium in the soda ash and the sodium silicate is a very powerful
flux, and the silica in the sodium silicate adds some glass-former. The
water is to dissolve the soda ash, which is soluble, which means that it
travels a little way into the wet clay. And the sodium silicate, which is
also sticky, dries real hard, and faster than the clay does.
So here's what I think is happening. The Magic Water makes a sticky layer
of almost-glaze that soaks into the surrounding clay, then dries hard. So
cracks are prevented in the drying and the bond is stronger after firing.
But then again, who knows. Maybe it really is, as promised, magic!
Paul Lewing, Seattle
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