Lexxy on thu 17 jan 02
thanks but this stuff is textured between jello and paste...sorta
transluscent and globby. I just wondered if anyone else had tried it. I
have engobes that I like but I wanted to make strongly collored underglazes
like one strokes. Does anyone ever make those?
Lexxey
East GA, Pottery & Gardening
http://www.flummoxed.org/lexxey/index.htm
If you don't have the directions, then take some of it and mix with a
colorant, try it on a test piece and see. I bet it is a base for engobes.
I make up a big bucket of Engobe base and use it for years..
Hope this helps,
Denise
Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Lexxy on thu 17 jan 02
This also brings up something I have wondered about...I bought some
"underglaze medium"...it has no directions, can't remember why I bought it.
Has anyone tried this? Do I just mix stains with it directly or use a slip
or engobe recipe and sub for water? I think I was looking for some "body"
or "raised line" effect. Perhaps it's just to make slips glide smoother.
Lexxey
East GA, Pottery & Gardening
http://www.flummoxed.org/lexxey/index.htm
> What do you call a slip that is not mixed with water, but with some other
> suspender, such as glycerin, turpentine or diesel oil ? I had the
> impression that these were engobes, but I guess I was wrong...
Tommy -
I would call them goo, but I have not had experience with such slips. What
would you use them for?
- Vince
Denise Philipbar on thu 17 jan 02
Lexxey,
If you don't have the directions, then take some of it and mix with a
colorant, try it on a test piece and see. I bet it is a base for engobes.
I make up a big bucket of Engobe base and use it for years...mixing
different colorants into the wet mixed base when I need them or want a new
color. I mix the colored versions in small plastic containers with tight
fitting lids at different percentages (1 tsp to 1 cup, 2 tsp to 1 cup, etc).
This gives me a wide range of relatively inexpensive engobes. If I let them
dry in watercolor pans, I can use them like the watercolor unglazes sold in
sets by Amaco. I haven't tried it, but I think with a little more clay
added, I could make underglaze crayons!
Hope this helps,
Denise
-----Original Message-----
From: Lexxy [mailto:earth2lexxy@home.com]
Sent: Thursday, January 17, 2002 6:51 AM
To: CLAYART@lsv.ceramics.org
Subject: Re: Engobe/Slip/medium
This also brings up something I have wondered about...I bought some
"underglaze medium"...it has no directions, can't remember why I bought it.
Has anyone tried this? Do I just mix stains with it directly or use a slip
or engobe recipe and sub for water? I think I was looking for some "body"
or "raised line" effect. Perhaps it's just to make slips glide smoother.
Lexxey
East GA, Pottery & Gardening
http://www.flummoxed.org/lexxey/index.htm
> What do you call a slip that is not mixed with water, but with some other
> suspender, such as glycerin, turpentine or diesel oil ? I had the
> impression that these were engobes, but I guess I was wrong...
Tommy -
I would call them goo, but I have not had experience with such slips. What
would you use them for?
- Vince
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iandol on fri 18 jan 02
Dear Lexxy,
You comment <bought some "underglaze medium"...it has no directions, can't remember =
why I bought it. Has anyone tried this?>>
Suppliers never let us know what is in these liquids. But it needs some =
basic things in it.
1 Something to make it stick to the bisque, green pot or leather hard =
pot.
2 Something which will flux the stain and the pot to give adhesion =
during the first firing.
3 Something which will make it flow well from the brush.
4 Some fluid to act as a vehicle.
The solution, in reverse order might be Water, Glycerine, A low temp =
frit for low and middle fired work or a High temp frit, soda felspar or =
Neph Sye for stoneware or porcelain and a gum adhesive such as CMC, Gum =
Tag or Gum Acacia.
I make my own. Mix it up, grind in the colours with a spatula on a white =
tile with a small amount of liquid and adjust to get the flow. then =
paint or stamp away. The more filler the paler the colours. Keep this to =
a minimum to prevent getting resist spots which break the flow of the =
glaze, you only need enough to sinter the colour to the pot.
Some times it may be necessary to use a non aqueous medium. This =
enlarges the choice of decorative techniques which can be used with =
underglaze stains. Choose from: alcoholic shellac; light spirit and wax: =
oil and a drying varnish. Some of these are useful as printing inks. But =
that is another story.
Best regards,
Ivor Lewis. Redhill, South Australia.
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