Karen Shapiro on fri 7 may 99
Hi all,
My supplier carries liquid sodium silicate as a regular item. I buy at:
Creative Ceramics in Santa Rosa CA. She does ship by UPS with a credit card.
The phone number is: 707 545-6528. Fax: 707 545-0760
cheers,
Karen in Sonoma
Al Caniff on mon 13 sep 99
Greetings,
I have a bottle of sodium silicate from ART that has settled out.
There is a 3 inch solid on the bottom. How do I reconstitute the
mixture?
Thanks all
Hello Vince.
Al Caniff
Frank & Pat Simons on fri 20 apr 01
Is there any way to reconstitute sodium silicate that has started to =
thicken and jell????
Larry Phillips on sat 21 apr 01
Frank & Pat Simons wrote:
>
> Is there any way to reconstitute sodium silicate that has started to thicken and jell????
It's soluble in water.
If you want to see something pretty nifty, drop some copper sulphate
crystals into a fairly thick solution of sodium silicate, and leave it
undisturbed for a few weeks.
--
Procrastinate now!
http://24.113.44.106/larry/
Ababi on fri 27 jul 01
Ababi Sharon
Kibbutz Shoval- Israel
officially Glaze addict
ababisha@shoval.ardom.co.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
http://www.israelceramics.org/
?gnizalg ni lairetam a sa etaciliS muidos esu I naC
Snail Scott on fri 27 jul 01
At 02:06 PM 7/27/01 +0200, Ababi Sharon wrote:
>
>?gnizalg ni lairetam a sa etaciliS muidos esu I naC
Ababi-
I think your translation software is leaving your
English in the Hebrew right-to-left direction!
I think you're asking about sodium silicate, but
maybe it just says that Paul CcCartney is dead?
;-)
Hard to tell about Paul, but (seriously) sodium
silicate is used mainly as a deflocculant for
slips and for making terra sigillata. (It's also
a useful binder for pigments in bronze patinas.)
-Snail
cmhatfield on sun 29 jul 01
Hello all clayarters
Janet is correct about preserving eggs. I remember as a boy in ww2 =
doing this . I also remember using sodium silicate for sealing concrete =
barrack room floors to keep down the dust during army service! Those =
were the pre pottery days - long gone.
Colin Hatfield
cmhatfield@supanet.com
J Lutz on mon 31 mar 03
I'm making up a new batch of Lana Wilson's Magic Water and find that my
sodium silicate has become very thick with a white residue at the bottom
of the container.
Should I try to mash up the hardened residue and incorporate it or just use
the thickened liquid? Should I thin it a little with water or just use the
measurement of the thickened stuff?
Jean Lutz
Tony Hansen on mon 31 mar 03
When we buy barrels of it at Plainsman I think I remember the manufacturer
saying that it has a shelf life. I\'m not sure what it does when it expires,
I wonder if this is the problem.
> I\'m making up a new batch of Lana Wilson\'s Magic Water and find that my
> sodium silicate has become very thick with a white residue at the bottom
> of the container.
> Should I try to mash up the hardened residue and incorporate it or just use
> the thickened liquid? Should I thin it a little with water or just use the
> measurement of the thickened stuff?
> Jean Lutz
>
========
Tony Hansen, Digitalfire Corporation, http://digitalfire.com
You can update your personal and affiliation info on our website:
http://digitalfire.com/services/register.php?password=nibcukib
Longtin, Jeff on tue 1 apr 03
Jean,
Just a thought.
I have still have some sodium silicate in the studio which I bought back in
the late 80's or early 90's. The stuff still works fine for me. I found some
Darvan 811 in the studio the other day which I've had since 86. (I'm not
using porcelain at the moment so it will continue to sit.)
Sod Sil is water based. As such I do beleive all you need to do to
re-constitute it is to add water. I thinned mine out awhile back, to make it
easier to mix direct, and only now is it getting back to its original
consistency. The crystals you see (the sludge) are the soluble salts, again
I do beleive, that make up sodium silicate that have just precipitated out.
Take care
Jeff Longtin
-----Original Message-----
From: J Lutz [mailto:jlutz@AZLINK.COM]
Sent: Monday, March 31, 2003 6:06 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Sodium Silicate
I'm making up a new batch of Lana Wilson's Magic Water and find that my
sodium silicate has become very thick with a white residue at the bottom
of the container.
Should I try to mash up the hardened residue and incorporate it or just use
the thickened liquid? Should I thin it a little with water or just use the
measurement of the thickened stuff?
Jean Lutz
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Megan Ratchford on wed 10 mar 04
"Seen a demonstration with slip showing when you don't want to add water =
but
you want the slip to be thinner you add sodium silicate. correct?"
Hi Logan!
John Neely gave us the following way to add sodium silicate to slip:
Take bone dry slivers of clay, trimmings work good, and cover with water =
a
couple inches above the slip, do not stir!!! Wait till the slivers are =
all
slaked then pour off the water, as much as you can. Blend the slip with =
a
hand blender till all "goopy". Then add ONE drop of silicate as you're
blending. Keep adding ONE drop of silicate over several minutes till =
you
see the "goopy" slip become this shiny loose consistency. Don't add too
much silicate as it will become the hard mess you encountered. It =
should be
shiny and the constancy of a milk shake. This usually takes two to =
three drops for about three cups of slip. Don't worry if it gets too =
thin,
it will thicken with time and works just as well. I use this all the =
time for my attachments and
it is now called "clay glue" by my students. Thank you John Neely!!!
Happy Potting!
Megan Ratchford
Littleton, Colorado
logan johnson on thu 11 mar 04
Susan Setley wrote:
In a message dated 3/11/04 7:13:54 AM, kogi5@EARTHLINK.NET writes:
Hi Susan,
BOY! beats the heck out of me. All I can think to suggest is to get a small container with a tight fitting lid & try diluting a small amount with some water. If it doesn't work then you've only lost Five or six drops . I would dip a stick of some kind into the "GOO" then mix with a little water & close the lid & wait.
Maybe even overnight if all is right in the morning continue testing. Maybe mix up a hundred gram batch of a glaze that calls for it & test fire that. OR you can just go ahead & dump what you have & buy new. All of this is a guess, I have no clue if this will work or not . I've never seen sodium silicate that thick & don't know what water will do to it . you know the mantra ... Test Test Test!!! Good Luck!!!
I have a question for you. The sodium silicate in our group studio is so
thick that it's firmer than Jell-o.
Is there anything we can do to reconstitute it? You could no more put in a
drop at a time than you could nail it to the wall -- well you almost COULD nail
this to the wall -- it's that firm.
______________________________________________________________________________
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/
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Logan Johnson Audeo Studios
www.audeostudios.com
"Carpe Argillam!!"
lili krakowski on sun 25 apr 04
I am totally confused . But to sum up. Sheffied lists sodium silicate
powder, if that is what is wanted.
On her website (www.lanawilson.com) Ms Wilson lists her "magic water"
with liquid sodium silicate as ingredient.
Last, Hamer lists Sodium Silicate as variable in composition....
Respectfully,
lili krakowski
Constableville, NY 13325
Be of good courage
Don Pipes on sun 25 apr 04
I think I missed the original post so I'll just tell you what I =
remember. Sodium Silicate is also known as "water glass" or "egg =
preserver". It's a slimy, make that viscous, nearly clear liquid. Also =
used to clog up holes in car radiators.
When you measure it, just remember that 1 Gram is approximately 1 ml, =
same as
1cc.=20
Hope this helps.
Mary Van Peursem, RPh retired!!
Island Pottery =20
Corpus Christi, Tx
Ivor and Olive Lewis on mon 26 apr 04
Dear Friends,
There are three different "Sodium Silicate" compounds: 2NaO. SiO2, mp
> 1200=BA C: Na2O. SiO2, mp 1098=BA C and Na2O. 2SiO2, mp 874=BA C.
Get your supplier to give you the Data Sheet for the product they
sell.
Best regards,
Ivor Lewis. Redhill, South Australia
bill edwards on thu 19 may 05
Thanks Ed for the site info. I made a copy of the
english version for my studio. I also enjoyed
attempting to read the French version but didn't get
very far. Lol
The MSDS seems to be well complete and I recommend
those who use the product at all to get a copy of the
MSDS sheet for their records. NOTE* His site details
more information than normally found on standardized
MSDS materials lists unless requested directly from
the manufacturer, sometimes they still lag behind Ed's
information.
Bill Edwards
Edmar Studio and Gallery
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Edouard Bastarache Inc. on thu 19 may 05
Bill,
it is not really a MSDS but I adopted the style and presentation
of a MSDS because a good part of the information came from MDSSs
available on the Net, this information was "seasoned" by information
gleaned from many other documentary sources in order to have a very
comprehensive text.
Other sources were textbooks and databases.
I have to adapt myself to the available documentay sources.
Later,
"Ils sont fous ces quebecois"
"They are insane these quebekers"
"Están locos estos quebequeses"
Edouard Bastarache
Irreductible Quebecois
Indomitable Quebeker
Sorel-Tracy
Quebec
edouardb@sorel-tracy.qc.ca
www.sorel-tracy.qc.ca/~edouardb/Welcome.html
http://perso.wanadoo.fr/smart2000/index.htm
http://www.digitalfire.com/education/toxicity/
Edouard Bastarache Inc. on thu 19 may 05
Bill,
you need to be more persistent.
"Thanks Ed for the site info. I made a copy of the
english version for my studio. I also enjoyed
attempting to read the French version but didn't get
very far. Lol(Bill Edwards)"
Later,
bill edwards on fri 20 may 05
I wrote the other day that Ed had a good site and his
information could perhaps be used as a MSDS sheet for
that material, sodium silicate. I recant that but
still will use it for myself since I have looked at
the others and believe that Ed's information is
complete. I have the manufacturers information in my
data-base. I will also have Ed's. He goes beyond the
norms by compiling information in ways that is much
more usable than what companies often will do! I give
him credit for exploring the chemistry in the way he
does and breaks it down. Eduoard B. has been a real
contributor to our group and to the arts industry now
for years. Thanks Ed!
I also will note that he is a toxicologist or M.D in
the environmental field. He can correct that if wrong.
His work for using substitutions for raw ceramic
materials is outstanding. Ed, I must ask, do you also
go by Albert?
Bill Edwards
Edmar Studio and Gallery
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Gene & Dolita Dohrman on thu 3 aug 06
Yesterday I threw a number of pots and used sodium silicate on the outside
before I expanded the body. I have two questions:
1) I understand sodium silicate is liquid glass. When I bisque the pot,
will it form a hard surface or will it burn off? Looking in Robin Hopper's
'Making Marks', I noticed that the pot on p.106 is only glazed on the rim.
Will I be able to glaze the whole pot?
2) When one expands the body only from the inside, how fast should the
wheel be rotating? After making 4 pieces yesterday, I still don't quite
know the answer. I had a tough time finishing my rims as the pots became
quite wobbly.
Dolita
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Ivor and Olive Lewis on sat 5 aug 06
Dear Dolita Dohrman,=20
Sodium silicate liquid is made by digesting compounds of Sodium oxide =
and Silica under pressure in hot water. Depending on the formula of the =
compound you are using, then melting points may be 1089 deg C =
(Mono-silicate) or 874 deg C (Di-silicate). When molten, both can act as =
solvents for Alumino-silicate materials and will seal the surface of =
clay as it is being fired.
Sodium Silicates will not burn away or evaporate.
When you are expanding the girth of a vessel it is better to commence =
the expansion at the top of the cavity and work down. Your speed of =
rotation should allow you to keep control and also be in phase with the =
rate at which you lower you hand or the tool down the body of the pot.It =
would be difficult to prescribe a particular speed for these things =
depend on the mass of clay and the dimensions you have achieved for your =
pot.
Good wishes for your work.
Ivor Lewis,
Redhill,
South Australia.
Deborah Woods on sat 5 aug 06
Gene and Dolita,
regardless of the type of altering you are doing, and I know you are
expanding, try finishing the rim, BEFORE you do your expanding. If I am
throwing someting very large, with a wide flared rim for example, I don't
want to put too much pressure on it after I have widened the rim, so I
finish the rim before I open it out. It might just need a light touch up at
the end.
Deborah Woods
Gene & Dolita Dohrman on fri 11 aug 06
Thanks to all who responded to this thread. I have done what many of you
suggested on the last piece I tried. Slowed the wheel down, did a more
gradual expansion, and re-centered the rim every time I expanded. I also
finished the rim before I made the final expansion. Worked much better but
I still have to practice!
Have not bisqued the pieces yet. I am expecting a hard shiny surface after
the bisque and still wonder what will happen in the glaze firing. Since I
had to trim the pots around the base, there is no sodium silicate there,
which may slow down any extra fluidity caused by the sodium silicate. Will
keep you posted.
Thanks again.
Dolita
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Pat Lindemann on thu 18 oct 07
So where do I buy sodium silicate? I have in mind to start a batch of terra
sig. I know I could probably order it, but is there a place where you can
buy it? Like a lumber yard, pharmacy, drug store? Also is there anything I
could sub for it, if I cannot find any?
thanks!
Pat in SD, where its getting very cold and blustery and the days are getting
shorter...
judy motzkin on fri 19 oct 07
Hi Pat,
For making terra sigillata people use any number of deflocculants:
Soda ash, calgonite, sodium hexametaphosphate (water softening agent).
Sodium silicate is used to preserve eggs and I have read that pharmacies
carry it.
Scientific suppliers too.
best,
judy
--
motzkin/studio::7 tufts street::cambridge,MA
www.motzkin.com
John Rodgers on fri 19 oct 07
Most pottery supply places have it. Also many drug stores carry small
bottles of it - like 4 ounces.
John Rodgers
Chelsea, AL
Pat Lindemann wrote:
> So where do I buy sodium silicate? I have in mind to start a batch of terra
> sig. I know I could probably order it, but is there a place where you can
> buy it? Like a lumber yard, pharmacy, drug store? Also is there anything I
> could sub for it, if I cannot find any?
>
> thanks!
> Pat in SD, where its getting very cold and blustery and the days are getting
> shorter...
>
> ______________________________________________________________________________
> Clayart members may send postings to: clayart@lsv.ceramics.org
>
> You may look at the archives for the list, post messages, or change your
> subscription settings here: http://www.acers.org/cic/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots2@visi.com
>
>
>
Ric Swenson on fri 19 oct 07
chicken farmers call it EGG KEEP...used to keep eggs fresh in past times...=
maybe still used by them? Pretty cheap and available...
=20
Ric
=20
"...then fiery expedition be my wing, ..." Wm. Shakespeare, RICHARD III, Ac=
t IV Scene III Richard H. ("Ric") Swenson, Teacher, Office of Internationa=
l Cooperation and Exchange of Jingdezhen Ceramic Institute, TaoYang Road, E=
astern Suburb, Jingdezhen City.JiangXi Province, P.R. of China. Postal code=
333001. Mobile/cellular phone :13767818872 +86-0798-8499600 (ofc.) +86-079=
8-8499012 (fax) < RicSwenson0823@hotmail.com>
> Date: Fri, 19 Oct 2007 05:58:41 -0500> From: inua@CHARTER.NET> Subject: R=
e: Sodium Silicate> To: CLAYART@LSV.CERAMICS.ORG> > Most pottery supply pla=
ces have it. Also many drug stores carry small> bottles of it - like 4 ounc=
es.> > John Rodgers> Chelsea, AL> > Pat Lindemann wrote:> > So where do I b=
uy sodium silicate? I have in mind to start a batch of terra> > sig. I know=
I could probably order it, but is there a place where you can> > buy it? L=
ike a lumber yard, pharmacy, drug store? Also is there anything I> > could =
sub for it, if I cannot find any?> >> > thanks!> > Pat in SD, where its get=
ting very cold and blustery and the days are getting> > shorter...> >> > __=
___________________________________________________________________________=
_> > Clayart members may send postings to: clayart@lsv.ceramics.org> >> > Y=
ou may look at the archives for the list, post messages, or change your> > =
subscription settings here: http://www.acers.org/cic/clayart/> >> > Moderat=
or of the list is Mel Jacobson who may be reached at melpots2@visi.com> >> =
>> >> > ___________________________________________________________________=
___________> Clayart members may send postings to: clayart@lsv.ceramics.org=
> > You may look at the archives for the list, post messages, or change you=
r> subscription settings here: http://www.acers.org/cic/clayart/> > Moderat=
or of the list is Mel Jacobson who may be reached at melpots2@visi.com
_________________________________________________________________
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Terrance Lazaroff on fri 19 oct 07
Hi Pat;
Try a local hardware store that sells paints and decorators material. This
item is also used for special effects when painting furniture.
Terrance
Pete Horridge on fri 27 jan 12
I mixed up my first batch of Terra Sigilatta last night at college. I neede=
d
to weigh 2.5 g of Soda Ash and 2.5 g of Sodium Silicate. The Soda Ash was
straightforward but the SS was difficult to handle as it was as thick and
sticky as treacle. I thought of diluting it with hot water but this would
then mean I would be mixing up the correct amount of the ingredients etc?
Does anyone have any tips on handling/weighing Sodium Silicate for use in
TS?
Many Thanks
Pete
L TURNER on fri 27 jan 12
Pete,
I use a syringe.
First get the tare for syringe. get NET weight of 5cc of silicate.
and ratio from there. I mark the ratio of cc/gram on the silicate jar
to use next time.
Get syringe at a farm supply store. They come in all sizes from 1 cc
to 60cc. Get the needle with the biggest hole.
LT
Vince Pitelka on fri 27 jan 12
Pete Horridge wrote:
"I mixed up my first batch of Terra Sigilatta last night at college. I
needed to weigh 2.5 g of Soda Ash and 2.5 g of Sodium Silicate. The Soda As=
h
was straightforward but the SS was difficult to handle as it was as thick
and sticky as treacle. I thought of diluting it with hot water but this
would then mean I would be mixing up the correct amount of the ingredients
etc? Does anyone have any tips on handling/weighing Sodium Silicate for use
in TS?"
Hi Pete -
I have never had a problem with it. You just zero the weight of a small
container and then dispense the sodium silicate into the container however
you have to in order to get the right amount. Once it is weighed, add a
little hot water to it and mix it up, and then add that to the water you ar=
e
using to mix your terra sigillata. You should dissolve the soda ash in a
little hot water as well. This isn't rocket science. Check out my article
at http://iweb.tntech.edu/wpitelka/professional/terra_sig.htm if you have
any questions.
- Vince
Vince Pitelka
Appalachian Center for Craft
Tennessee Tech University
vpitelka@dtccom.net
http://iweb.tntech.edu/wpitelka/
John Britt on sat 28 jan 12
Pete,
I am wondering if your sodium silicate is old and has thickened?
John Britt Pottery
Bonnie Staffel on sat 28 jan 12
It would be my suggestion to weigh the tare of the container or spoon,
depending upon the amount needed, then use hot water to completely =3D
disperse
the SS. It is also useful for the clay addition. I use hot water on many
occasions when I add clay or mix CMC as the clay slakes more quickly and =
=3D
the
CMC in a blender dissolves very quickly. Even when I am weighing out the
materials for a glaze mix, I always use hot water for the same reason.
Regards
Bonnie
http://webpages.charter.net/bstaffel/
http://vasefinder.com/bstaffelgallery1.html
DVD Throwing with Coils and Slabs
DVD Introduction to Wheel Work
Charter Member Potters Council
Steve Mills on sat 28 jan 12
Hi Pete,
There are two grades of Sodium Silicate 140TW and 75TW. =3D46rom your descr=
ipt=3D
ion you have the 140TW.=3D20
Hopefully your recipe should tell you which one to use. If it doesn't I sug=
g=3D
est you search out another recipe.=3D20
75TW is more liquid than the other, so easier to weigh out.=3D20
If you wish to stay with what you have, the answer to your question I'm afr=
a=3D
id is: "Patience!"
Steve M
P.S. TW stands for "Twaddle"
The Twaddle scale is a simplified scale based on specific gravity where 0=
=3DC2=3D
=3DB0 Twaddle equates to SG60/60=3DC2=3DB0F of 1.00 (that of water) and eac=
h degre=3D
e Twaddle equals 0.005=3DC2=3DB0SG
Brannan. =3D20
Steve Mills
Bath
UK
Sent from my iPod
On 27 Jan 2012, at 18:07, Pete Horridge wrote:
> I mixed up my first batch of Terra Sigilatta last night at college. I nee=
d=3D
ed
> to weigh 2.5 g of Soda Ash and 2.5 g of Sodium Silicate. The Soda Ash was
> straightforward but the SS was difficult to handle as it was as thick and
> sticky as treacle. I thought of diluting it with hot water but this would
> then mean I would be mixing up the correct amount of the ingredients etc?
>=3D20
>=3D20
>=3D20
> Does anyone have any tips on handling/weighing Sodium Silicate for use in
> TS?
>=3D20
>=3D20
>=3D20
> Many Thanks
>=3D20
>=3D20
>=3D20
> Pete
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