Sue Lily on mon 25 mar 96
Does anyone have any ideas how I could go about getting the slip on
thickly without the cracking
and peeling?
I have been slip decorating on my pots - and my method for keeping things
simple is to use the slip in the splash pan - Yes, the very same material
out of which the bowl or plate is made. Has to fit. I add colorants,
wait to wet-leather stage, brush on a layer of unstained slip, then add
the colored slips. I haven't los pots due to this ever. ?:-) But
usually, it's not more than 1/8" thick.
Hope that helps.
Repeal the Salvage Rider.
Write: president@whitehouse.gov
Representing Four Eagles Garden, a CSA.
Let's stop eating old food from far away.
Ms. Lily
lily@mind.net
4Eagles 488-4511
Randy Tippetts on wed 10 jun 98
Okay, I don't know who all works with ceramic slip. But my question is,
My slip is having a big problem. It has been settling in the bottom of
the mixer. And very runny on top, and there is a black film that is
forming on the top. DOes anyone know what is happening? Any help would
be appreciated.
Kim
ddrw@xmission.com
Janine A. Lee on thu 11 jun 98
Hello All,
A former student mentioned that her new ceramics teacher used vinegar
instead of slip. Since As a ceramics novice and despite my research, I have
not come across anything like this. Is there a recipe for a vinegar
solution that can be used in place of slip? If so is it more effective than
slip? Does it work better on certain clays?
Thanks for your replies!
Janine A. Lee
ride2995@ride.ri.net
Creative Arts Director
Community Preparatory School
126 Somerset Street
Providence, Rhode Island 02907
Kris Bliss on fri 12 jun 98
>----------------------------Original message----------------------------
>Hello All,
>
>A former student mentioned that her new ceramics teacher used vinegar
>instead of slip. Since As a ceramics novice and despite my research, I have
>not come across anything like this. Is there a recipe for a vinegar
>solution that can be used in place of slip? If so is it more effective than
>slip? Does it work better on certain clays?
>
>Thanks for your replies!
>
>Janine A. Lee
>ride2995@ride.ri.net
>Creative Arts Director
>Community Preparatory School
>126 Somerset Street
>Providence, Rhode Island 02907
>
i would suggest looking in the archives for the famous
"spooze". many have used this with great results.
ttfn kris
kbliss@customcpu.com
Anchorage, Alaska
Paul Bush on fri 12 jun 98
Janine A. Lee wrote:
>
> ----------------------------Original message----------------------------
> Hello All,
>
> A former student mentioned that her new ceramics teacher used vinegar
> instead of slip. Since As a ceramics novice and despite my research, I have
> not come across anything like this. Is there a recipe for a vinegar
> solution that can be used in place of slip? If so is it more effective than
> slip? Does it work better on certain clays?
>
> Thanks for your replies!
>
> Janine A. Lee
> ride2995@ride.ri.net
> Creative Arts Director
> Community Preparatory School
> 126 Somerset Street
> Providence, Rhode Island 02907
Janine,
Vinegar can be used for joining pieces (such as handles) in place of
slip, but not for decorative applications as far as I know.
Paul Bush
Portland, OR
Ross Hartman on sat 13 jun 98
PMFJI:
I learned when I was in school that adding vinegar to a slip (small
amount of slip, small amount of vinegar, don't remember any proportions)
was useful when 'gluing' two slip cast parts of a piece together.
e.g. a cast cup with a cast handle, gluing the handle on while still
greenware using a little special mix of slip with vinegar in it
supposedly helped in some way to create a better bond for firing.
FWIW
L8R/Ross
Liz Willoughby on sat 13 jun 98
Hello Janine, I use a vinegared slip solution instead of just slip or just
vinegar. I have a covered jar which holds about 1 cup, and peridically add
more slip and a squirt of vinegar. Over time there is a lot of bacterial
growth in there and I believe it helps to attach appendages very securely.
When Malcolm Davis was here last spring, he was mending a broken teapot
handle with it, (in the greenware stage) and it worked like a charm.(He
even said, My G-- it's better than Malcolm's Holy Water!!) I make a lot of
teapots, and rarely do I have any cracking using vinegared slip. About 1
tbsp.to a cup of throwing slip. Try it and see. Best regards, Liz
>----------------------------Original message----------------------------
>Hello All,
>
>A former student mentioned that her new ceramics teacher used vinegar
>instead of slip. Since As a ceramics novice and despite my research, I have
>not come across anything like this. Is there a recipe for a vinegar
>solution that can be used in place of slip? If so is it more effective than
>slip? Does it work better on certain clays?
>
>Thanks for your replies!
>
>Janine A. Lee
>ride2995@ride.ri.net
>Creative Arts Director
>Community Preparatory School
>126 Somerset Street
>Providence, Rhode Island 02907
Liz Willoughby
R.R. 1
Grafton, Ontario
Canada. K0K 2G0
e-mail lizwill@phc.igs.net
Bob Hollis on sun 14 jun 98
Thu, 11 Jun 1998 10:34:48 EDTIn article
,
ride2995@ride.ri.net (Janine A. Lee) wrote:
> ----------------------------Original
message----------------------------
> Hello All,
>
> A former student mentioned that her new ceramics
teacher used vinegar
> instead of slip. Since As a ceramics novice and
despite my research, I
> have
> not come across anything like this. Is there a recipe
for a vinegar
> solution that can be used in place of slip? If so is
it more effective
> than
> slip? Does it work better on certain clays?
>
> Thanks for your replies!
>
> Janine A. Lee
> ride2995@ride.ri.net
> Creative Arts Director
> Community Preparatory School
> 126 Somerset Street
> Providence, Rhode Island 02907
>
I have found that vinegar is great for repairing
greenware and joining handles etc. that have dried just
that little bit too much,regardless of climate.
Bob Hollis
Vince Pitelka on sun 14 jun 98
> i would suggest looking in the archives for the famous
> "spooze". many have used this with great results.
> ttfn kris
We use spooze quite a bit, with good results, but primarily as a repair
medium for bone-dry stuff. I have never used it as an ordinary joining
slurry, but I'd love to know how it works if someone wants to try it.
Spooze is composed of your claybody, pulverized dry, moistened to the
desired consistency with a 50/50 mixture of vinegar and corn syrup.
Good luck -
- Vince
Vince Pitelka - vpitelka@DeKalb.net
Home 615/597-5376, work 615/597-6801, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
centa uhalde on mon 15 jun 98
Hi all,
Does anyone have recomendations for a cone 10 white slip to fit on Amador
clay (red) body? I'm not sure how slips and clay bodies work and what is
needed to make a good fit, but porcelain slip caused crazing (is my
uneduacated guess). I'm wanting to experiment with a high fire
majoilica-"type" application at the community studio I go to where they
work in high fire reduction. However,the white there does not cover the red
clay body I like to use well enough. So I thought slip might help create a
more uniformly white surface to apply stains to. Or am I barking up the
wrong tree?
with much continued appreciation of the educational value, not to mention
the kindness, of this list,
Centa
Ruth Blake on mon 7 sep 98
I have lost the recipe I copied off this list for a slip consisting of
clay,soda ash and sodium silicate. I tried the clayart archives but I
still can't find it.
Help! Does anyone still have it?
Ruth Blake
Don Goodrich on wed 9 sep 98
Ruth
Here's a recipe that was posted here awhile back. Maybe it's what you're
looking for:
DEFLOCCULATED SLIP
Dry Clay 2
Water 1
Sodium Silicate .5 % of Dry Clay
Soda Ash .5 % of Dry Clay
Don Goodrich
goodrichdn@aol.com
http://members.aol.com/goodrichdn/
Lili Krakowski on thu 18 sep 08
Just wait a minute.
Of course slip can be made from a clay body, but not necessarily
from ANY clay body. For one, any and all grog needs to come
out....
Of course slip can be applied to leather hard clay--as well as
greenware and bisque.
Unlike glaze, mixing slip is pretty foolproof. So you do not
need fancy equipment.
Here are two recipes I use, have used, both of which are measured
out with regular kitchen style measuring cups or similar vessel.
The measuring cup is filled with a ladle or spoon. The material
is NOT scooped up. BOTH are for leatherhard clay.
Potash feldspar 1 cup
Ball Clay 13 c.
Kaolin 3 c
flint 2 c
Zirconium opacifier 1 c
Bentonite 1c.
I use Tenn 10 Ball clay OR XX Sagger as I like the slip to be
white in the raw state.
Robin Hopper Slip, adapted
Feldspar (either soda or potash)
Ball Clay 8 c
Kaolin 1 c
Flint 1c
I add 1/2 c zirconium opacifier to this base.
I am puzzled why your slip peeled, flaked, whatever it did. Maybe
your recipe was for leatherhard clay and you used it on
greenware? Or something like that? Maybe the surface was too
polished? So that the slip adhered badly? Maybe you put it on
too thick? This is a puzzlement--but some slips can take very
heavy application, and some can't.
If you are going to apply the slip to greenware you need to get a
recipe for a slip meant for greenware. I know there are some in
Rhodes' book. Probably in others. Pottery Making Illustrated
just had an article on slip decoration...so look there.
Good luck
Lili Krakowski
Be of good courage
lili krakowski on thu 24 dec 09
What better time to say :"For everything there is a season"? =3D20
Mudduck writes:"I've begun ... slip trailing... The slip ... is not =3D
sticking very well. Some times sticking some times popping partly off as =
=3D
it is drying even before bisque. I have been applying the slip at the =3D
leather hard stage....Does anyone have a better, sticks to anything =3D
recipe using porcelain for the slip recipe?"
Ok. Slip has to fit the body underneath. It has to dryin tandem the =3D
body underneath. If your slip dries very fxast and shrinks a lot, of =3D
course it will peel off a body that shrinks less and dries more slowly. =3D
(The same applies to icing on diverse baked goods.)
You say you are using porcelain...I assume from that you are using a =3D
porcelain BODY which has Heaven knows what other stuff in it besides =3D
kaolin.
Now Rhodes has a chart of engobes (he uses the word "engobe" for slips =3D
used for decoration, and "slip" for--dare I say mention it in =3D
public?--for what is used for casting!
Anyway.For c6-11 applied to damp clay: 25 kaolin, 25 ball clay 20 =3D
feldspar, 20 flint, 5 each borax and zircopax. For application on dry =3D
clay: 15 kaolin, 15 ball clay, 20 calcined* kaolin, 20 feldspar, 20 =3D
flint, and five each of borax and of zircopax. For application on =3D
bisque: 5 parts kaolin, 15 ball clay, 20 calcined kaolin, 5 of leadless =3D
frit, 5 of neph sy, 20 feldspar, 20 flint, and 5 each of borax and =3D
zircopax.
*calcined clay can be bought, I guess. Simplest is to put kaolin in a =3D
bisqued bowl in a bisque kiln. The chemical water will go out in =3D
bisquing.df
The borax is there to harden the surface of the applied slip/engobe.
You will note that as the clay body is dried from damp to bisqued the =3D
plastic materials in the slip are REDUCED and the non-plastics INCREASED =
=3D
in proportion.
Partridges in pear trees are not provided. The pear trees are up to here =
=3D
in snow...
Lili Krakowski
Be of good courage
Bill Merrill on mon 14 jun 10
If you want a versatile slip try the following . It is a slip by Pete
Volkous. The slip will work on green ware or on bisque ware. Slip
trailing is questionable. I use it to do Hakeme and usually brush it
on. It works well over wax resist on green ware. Bisque fire the pot
and a single glaze will have 2 different effects. Glaze over clay and
glaze over slip. Cobalt etc can be added to the slip. If you add 75%
(yes that correct 75%) iron to the mix and use it a wash over raw clay
and it can even go over a glaze if the slip is thinner. Dave Shaner
used the iron slip this way over his glazes for brush work or for
banding.
=3D20
Since the slip only has 40% shrinking clays in it more clay can be added
for leather hard slip trailing. I have used the base slip over leathern
hard ware and dried it slowly and never had an issue with the slip.
=3D20
VOLKOUS Slip Cone 10
=3D20
30 Neph Sy
30 Flint
20 EPK
20 OM4
5 Borax
=3D20
I use tin oxide to make the slip even whiter. I also use the slip as a
wash over textured areas with Barnard clay put on and the excess wiped
off before spraying or brushing on the slip. It is a dry surface this
way.
=3D20
Bill
Eva Gallagher on wed 16 jun 10
Hi Bill - I always enjoy your posts - lots of good info. Just a question - =
I
find that borax in the slip has difficulty staying dissolved and I end up
with granular bits. Does this happen out west where you have hard water? (W=
e
have very soft water here) Would that affect the solubilty? I have been
subbing gert bor for the borax in what is called the Bringle slip - for
greenware or bisque and I think the recipe is similar.
Will have to try the Barnard first as you suggested under the white for
sculptural stuff.
Eva Gallagher
http://newfoundoutpotter.blogspot.com/
----- Original Message -----
From: "Bill Merrill"
To:
Sent: Monday, June 14, 2010 7:04 PM
Subject: slip
If you want a versatile slip try the following . It is a slip by Pete
Volkous. The slip will work on green ware or on bisque ware. Slip
trailing is questionable. I use it to do Hakeme and usually brush it
on. It works well over wax resist on green ware. Bisque fire the pot
and a single glaze will have 2 different effects. Glaze over clay and
glaze over slip. Cobalt etc can be added to the slip. If you add 75%
(yes that correct 75%) iron to the mix and use it a wash over raw clay
and it can even go over a glaze if the slip is thinner. Dave Shaner
used the iron slip this way over his glazes for brush work or for
banding.
Since the slip only has 40% shrinking clays in it more clay can be added
for leather hard slip trailing. I have used the base slip over leathern
hard ware and dried it slowly and never had an issue with the slip.
VOLKOUS Slip Cone 10
30 Neph Sy
30 Flint
20 EPK
20 OM4
5 Borax
I use tin oxide to make the slip even whiter. I also use the slip as a
wash over textured areas with Barnard clay put on and the excess wiped
off before spraying or brushing on the slip. It is a dry surface this
way.
Bill
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