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vitreous engobe recipes

updated wed 27 mar 02

 

diane on mon 25 mar 02


Does anyone have a good engobe recipe that might
be suitable for cone 6 firing that would be more
like a true vitreous engobe and not a slip? Having
looked in the archives I found one that used Ferro Frit
3304 which contains lead but I have not found a substitute
for that frit. The look that I would like to have is a raised
surface when trailed and still show through when a glaze
has been airbrushed on the piece.

Diane
Wild Duck Pottery

Hoping that this question makes some sense.

Dupre Mr Marcy M on tue 26 mar 02


Diane,

There is (or was) a style of tile decoration during the Art Nouveau/Art Deco
period called "tubelining." It is making somewhat of a comeback and there
are a few recipes for tubelining mixes available.

The principle is somewhat akin to drawing with a slip on bisque ware. The
mix is put into a squeeze bottle, pressed slightly to get the mix started on
the surface of the ware, then the capillary action of the bisque draws out
the material as the fine point of the bottle is pulled along a line. This
leaves a raised line on the surface which can then be filled with a pool of
glaze and fired.

If this sounds like something that might interest you, let me know and I'll
email a recipe for the mix I use.

Tig
Play Dirty!

Judith Frederick on tue 26 mar 02


I would love to have this recipe also.
claycrazy@hotmail.com
Thanks


>From: Dupre Mr Marcy M
>Reply-To: Ceramic Arts Discussion List
>To: CLAYART@LSV.CERAMICS.ORG
>Subject: Re: vitreous engobe recipes
>Date: Tue, 26 Mar 2002 06:51:15 -0500
>
>Diane,
>
>There is (or was) a style of tile decoration during the Art Nouveau/Art
>Deco
>period called "tubelining." It is making somewhat of a comeback and there
>are a few recipes for tubelining mixes available.
>
>The principle is somewhat akin to drawing with a slip on bisque ware. The
>mix is put into a squeeze bottle, pressed slightly to get the mix started
>on
>the surface of the ware, then the capillary action of the bisque draws out
>the material as the fine point of the bottle is pulled along a line. This
>leaves a raised line on the surface which can then be filled with a pool of
>glaze and fired.
>
>If this sounds like something that might interest you, let me know and I'll
>email a recipe for the mix I use.
>
>Tig
>Play Dirty!
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
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>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.


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Ababi on tue 26 mar 02


You may try with your "favorite" frit and favorite engob/ add frit in
tests 5 10 15 20% to base engob until you get the 'gloss' you want
Ababi
---------- Original Message ----------

>Does anyone have a good engobe recipe that might
>be suitable for cone 6 firing that would be more
>like a true vitreous engobe and not a slip? Having
>looked in the archives I found one that used Ferro Frit
>3304 which contains lead but I have not found a substitute
>for that frit. The look that I would like to have is a raised
>surface when trailed and still show through when a glaze
>has been airbrushed on the piece.

>Diane
>Wild Duck Pottery

>Hoping that this question makes some sense.

>________________________________________________________________________
>______
>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.

Anne K. Wellings on tue 26 mar 02


Diane- These are the engobe recipes I use. Yes, I've always called them
slips, as would many others, but Tom Buck of Clayart has informed me that
they are engobes because they contain more than 50% non-clay materials. I
consider them vitreous compared to others I've used, because of the way
that colorants, notably cobalt, show up vividly in them without glaze
over them. My decorating uses sgraffito through unglazed engobes, so
needs to be on the vitreous side for the colors to work.

I use these on leather hard but info in the archives indicates they can
work on dry or even bisqued ware. Search Bringle Slip, then look for Wet,
Dry, Bisque Slip, Wonder Slip, and C Slip for a discussion of this.
These are different names for basically the same recipe, except some
postings list Custer spar instead of neph sye. My ^6 would be same as the
neph sye version except mine contains some talc.

I think these recipes might be suitable for slip trailing due to the
qualities described above; lower clay content, lower shrinkage. You
mentioned frits; I use one in the low-fire recipe. I know little about
frits so don't know how it compares to the one you mentioned.

Bringle Slip ^10 (Sorry, I can't change the name to Bringle Engobe)


EPK (kaolin) 20%
Ball Clay 20%
Custer Feldspar 25%
Silica 30%
Borax 5%

The following two were adapted from Bringle Slip ^10, using Daniel
Rhodes' Clay and Glazes for the Potter as a reference for lowering the
firing temperature:
Anne's ^1-^6 Slip (or Engobe)

EPK 20%
Ball Clay 20%
Silica 30%
Nepheline Syenite 18.75%
Talc 6.25%
Borax 5%

Anne's ^08-^1 Slip (or Engobe)

EPK 20%
Ball Clay 20%
Silica 30%
Frit 3134 (leadless) 18.75%
Talc 6.25%
Borax 5%

If you mix up 400g., which fits nicely in a qt. size yogurt container,
the amounts will magically be in whole grams. (For the ^10 recipe, a
500g. or 1000g. batch will be in whole grams, too.)

Here are the colorants I use:

Rust-
Red Iron Oxide 10%
Blue-
Cobalt Carbonate 3%
White-
Zircopax 15%
Teal-
Cobalt Carbonate 3%
Chrome Oxide 4%
Green-
Chrome Oxide 4%
Turquoise-
Cobalt Carbonate 0.5%
Chrome Oxide 1%
Tan, Yellow-
Rutile 6% (or possibly more)
(varies with kiln atmosphere)
Black-
Cobalt Oxide 5.5%
or Cobalt Carbonate 11% (or possibly less)
Manganese Dioxide 11%
(At ^6, and maybe the others, this black will be shiny with no glaze over
it. Normally,
it should be blue under a glaze.But if you want it black under a glaze,
try the ^10 fired
at ^6 or the ^6 fired at ^04. Or try one of the commercial black stains
such as Mason Stains.)

>Diane wrote:
>Does anyone have a good engobe recipe that might
>be suitable for cone 6 firing that would be more
>like a true vitreous engobe and not a slip? Having
>looked in the archives I found one that used Ferro Frit
>3304 which contains lead but I have not found a substitute
>for that frit. The look that I would like to have is a raised
>surface when trailed and still show through when a glaze
>has been airbrushed on the piece.


>Diane
>Wild Duck Pottery


>Hoping that this question makes some sense.