Elizabeth Arday on sun 8 jan 06
Hi--
I've been having some issues lately with colored slips coming out washy on =
my pots. I'm using Miller 65 white stoneware body and I'm mixing the slip b=
y adding water and a little bit of defflocculant (to make the slip smoother=
) and then blending the clay body in a large plastic container. I've been m=
aking test batches by taking 1 cup of the slip and adding 1/2 tsp. to 1 tbs=
p. of oxides and stains to create the colors I need. I'd like the slips to =
create a solid patch of color when applied, leaving none of the clay body b=
eneath showing. Any suggestions as to how I can get the smooth, solid color=
s I want?
Liz
--=20
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Joe and Lisa Troncale on mon 9 jan 06
Liz,
My best slips sit for days to weeks to dehydrate to get to a paste to get to
the consistency I want (that you are apparently trying to get.) I don't
think you can get what you are looking for, in my opinion, without letting
the slip cure a little or else use less water if you are in a hurry.
Let me know.
Joe Troncale
New Holland, PA
----- Original Message -----
From: "Elizabeth Arday"
To:
Sent: Sunday, January 08, 2006 10:32 PM
Subject: Washy Slips
Hi--
I've been having some issues lately with colored slips coming out washy on
my pots. I'm using Miller 65 white stoneware body and I'm mixing the slip by
adding water and a little bit of defflocculant (to make the slip smoother)
and then blending the clay body in a large plastic container. I've been
making test batches by taking 1 cup of the slip and adding 1/2 tsp. to 1
tbsp. of oxides and stains to create the colors I need. I'd like the slips
to create a solid patch of color when applied, leaving none of the clay body
beneath showing. Any suggestions as to how I can get the smooth, solid
colors I want?
Liz
--
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Judy Rohrbaugh on mon 9 jan 06
How thick is your slip when you apply it? Is it over a wet pot or leather hard?
I suggest the consistency of ketchup, apply first coat, let dry a bit, put on another coat, and possibly a third.
I have never used a deflocculant.
Judy Rohrbaugh
Fine Art Stoneware
Ohio
Elizabeth Arday wrote:
Hi--
I've been having some issues lately with colored slips coming out washy on my pots. I'm using Miller 65 white stoneware body and I'm mixing the slip by adding water and a little bit of defflocculant (to make the slip smoother) and then blending the clay body in a large plastic container. I've been making test batches by taking 1 cup of the slip and adding 1/2 tsp. to 1 tbsp. of oxides and stains to create the colors I need. I'd like the slips to create a solid patch of color when applied, leaving none of the clay body beneath showing. Any suggestions as to how I can get the smooth, solid colors I want?
Liz
--
___________________________________________________
Play 100s of games for FREE! http://games.mail.com/
______________________________________________________________________________
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 Campbell on mon 9 jan 06
Hi Liz -
I would say you are not using enough stain
to produce solid opaque colors.
You are using only enough to get pastels
at best.
For instance, to get pinks, bright yellows and
violet you need up to 15 - 20% of stain for
vibrant color.
Dark colors don't need as much ... maybe 8 - 12%.
Also, make sure you are using a stain
recommended for clay bodies.
Good Luck
Chris Campbell - in North Carolina - just cleaned
my studio but am putting off changing the canvas
on my table ... ugh ... !!
Chris Campbell Pottery LLC
9417 Koupela Drive
Raleigh NC 27615-2233
Fine Colored Porcelain since 1989
1-800-652-1008
Fax : 919-676-2062
website: www.ccpottery.com
wholesale : www.wholesalecrafts.com
Maid O'Mud on mon 9 jan 06
Dry the clay body completely. Weigh
out 100 g DRY clay body, add 10 g colour.
This will give you deep coverage.
Sam Cuttell
Maid O'Mud Pottery
RR 1
Melbourne, Ontario
N0L 1T0
CANADA
"First, the clay told me what to do.
Then, I told the clay what to do.
Now, we co-operate."
sam 1994
http://www.ody.ca/~scuttell/
scuttell@ody.ca
----- Original Message -----
From: "Elizabeth Arday"
> Hi--
>
> I've been having some issues lately with colored slips coming out washy on
my pots. I'm using Miller 65 white stoneware body and I'm mixing the slip by
adding water and a little bit of defflocculant (to make the slip smoother)
and then blending the clay body in a large plastic container. I've been
making test batches by taking 1 cup of the slip and adding 1/2 tsp. to 1
tbsp. of oxides and stains to create the colors I need. I'd like the slips
to create a solid patch of color when applied, leaving none of the clay body
beneath showing. Any suggestions as to how I can get the smooth, solid
colors I want?
>
> Liz
Gayle Bair on mon 9 jan 06
Hi Liz,
You didn't say how much water you are using and whether you are glazing
these pieces.
Depending on the answer I would suggest less water in your slip, increasing
the amount of oxide and stains and/or using a very thin (skim milk)
application of a clear glaze.
I mix my slips then let them sit with the cover off until a lot of the water
evaporates. I get a wonderfully creamy slip this way without adding any
defloc.
I made a large quantity for my last batch so I don't have to brush it on but
can dip the pieces. The first test was too thick so I just adjusted it by
adding water.
Every once in a while I "forget" and apply the glaze too thickly and brush
marks show up this "bleaching effect" varies depending on which oxides and
stains you use.
Gayle Bair
Bainbridge Island, WA
Tucson, AZ
www.claybair.com
-----Original Message-----
From: Elizabeth Arday
Hi--
I've been having some issues lately with colored slips coming out washy on
my pots. I'm using Miller 65 white stoneware body and I'm mixing the slip by
adding water and a little bit of defflocculant (to make the slip smoother)
and then blending the clay body in a large plastic container. I've been
making test batches by taking 1 cup of the slip and adding 1/2 tsp. to 1
tbsp. of oxides and stains to create the colors I need. I'd like the slips
to create a solid patch of color when applied, leaving none of the clay body
beneath showing. Any suggestions as to how I can get the smooth, solid
colors I want?
Liz
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