eden@sover.net on mon 30 nov 98
Below is a forward of Harold's post I don't know where all it had been but
I had to delete about a thousand of >>>>these things to make it legible!
Anyway, I did tests earlier this year using Greg's starch-based formula and
Harold's anti-freeze-based one. BTW it is Sierra brand anti-freeze that is
the non-toxic one I found it at a big auto supply.
So the result of my tests is that the starch produces a slightly greyed-out
color while the anti-freeze one produces a pretty true color. I was using
my purples and tested 3 colors, the tests were consistent.
Eleanora
from: Harold R Deeley
Subject:
Recipe: Mason Underglaze Formula
This recipe was given to me by the lab
at Mason Color Works Inc. This
should be helpful to those other clayfolk
who want to mix their own
underglazes. Personally I dislike small jars and
prefer to mix up large
quantities that I can get my brushes into without
feeling that I have to
look in the jar to see how much is left with every
dip of the brush. It has
worked well for me in my initial testing. For
those high fire folks: I
haven't tried the Liquid with oxides yet but it
might work better than
glycerine and would not brush off as
easily.
Mason Color Works has used this recipe for 50 years.
GlazeType: Underglaze formula (measured in parts)
Components:
F-4 Soda Spar 20
Kaolin 10
Ball Clay 5
Frit (3124) 10
Stain 40
Liquid 75
Liquid Components:
Anti-freeze 1000cc
Water 1000cc
CMC Liquid 500cc
CMC Liquid(30 gms CMC to 1 qt. water)
and let sit for 2 days to break down.
Antifreeze is Ethylene-Glycol and is toxic. For a non-Toxic
substitution use Proplyene-Glycol as a direct substitution. This mixture
allows you to use a brush and paint directly on greenware without your
brush dragging. Notes: Stain can be a mixture of Stain and Opacifier if
a paler shade is desired.
Further Note: I have substituted frit 3195 for 3124 in my own underglaze
mix and it works well. Mason Color Works has used this recipe for 50
years.
Regards,
Harold Deeley
Labrador,
Canada
Eleanora Eden 802 869-2003
Paradise Hill
Bellows Falls, VT 05101 eden@sover.net
"Can love, through the exercise of art, overcome death?" ---SalmanRushdie
eden@sover.net on thu 29 apr 99
Posting this underglaze recipe post again in response to current queries:
>Anyway, I did tests earlier this year using Greg's starch-based formula and
>Harold's anti-freeze-based one. BTW it is Sierra brand anti-freeze that is
>the non-toxic one I found it at a big auto supply.
>
>So the result of my tests is that the starch produces a slightly greyed-out
>color while the anti-freeze one produces a pretty true color. I was using
>my purples and tested 3 colors, the tests were consistent.
>
>Eleanora
>
>
>from: Harold R Deeley
>Subject:
>Recipe: Mason Underglaze Formula
>
>This recipe was given to me by the lab
>at Mason Color Works Inc. This
>should be helpful to those other clayfolk
>who want to mix their own
>underglazes. Personally I dislike small jars and
>prefer to mix up large
>quantities that I can get my brushes into without
>feeling that I have to
>look in the jar to see how much is left with every
>dip of the brush. It has
>worked well for me in my initial testing. For
>those high fire folks: I
>haven't tried the Liquid with oxides yet but it
>might work better than
>glycerine and would not brush off as
>easily.
>
>Mason Color Works has used this recipe for 50 years.
>
>GlazeType: Underglaze formula (measured in parts)
>Components:
>F-4 Soda Spar 20
>Kaolin 10
>Ball Clay 5
>Frit (3124) 10
>Stain 40
>Liquid 75
> Liquid Components:
> Anti-freeze 1000cc
> Water 1000cc
> CMC Liquid 500cc
>
> CMC Liquid(30 gms CMC to 1 qt. water)
> and let sit for 2 days to break down.
>
>Antifreeze is Ethylene-Glycol and is toxic. For a non-Toxic
>substitution use Proplyene-Glycol as a direct substitution. This mixture
>allows you to use a brush and paint directly on greenware without your
>brush dragging. Notes: Stain can be a mixture of Stain and Opacifier if
>a paler shade is desired.
>
>Further Note: I have substituted frit 3195 for 3124 in my own underglaze
>mix and it works well. Mason Color Works has used this recipe for 50
>years.
>
>Regards,
>Harold Deeley
>Labrador,
>Canada
>
>
>Eleanora Eden 802 869-2003
>Paradise Hill
>Bellows Falls, VT 05101 eden@sover.net
>
>"Can love, through the exercise of art, overcome death?" ---SalmanRushdie
>
Eleanora Eden 802 869-2003
Paradise Hill
Bellows Falls, VT 05101 eden@sover.net
Eleanora Eden on mon 5 mar 01
Hi Diane and all,
Just saw Diane's post and have reposted the recipe Harold originally posted
awhile ago.
Subject: Re: Harold's Mason Underglaze Formula
To: CLAYART@LSV.UKY.EDU
In-Reply-To: <199710280337.VAA22810@mailhub.iastate.edu>
Content-Transfer-Encoding: 7BIT
Status:
----------------------------Original message----------------------------
Below is a forward of Harold's post I don't know where all it had been but
I had to delete about a thousand of >>>>these things to make it legible!
Anyway, I did tests earlier this year using Greg's starch-based formula and
Harold's anti-freeze-based one. BTW it is Sierra brand anti-freeze that is
the non-toxic one I found it at a big auto supply.
So the result of my tests is that the starch produces a slightly greyed-out
color while the anti-freeze one produces a pretty true color. I was using
my purples and tested 3 colors, the tests were consistent.
Eleanora
from: Harold R Deeley
Subject:
Recipe: Mason Underglaze Formula
This recipe was given to me by the lab
at Mason Color Works Inc. This
should be helpful to those other clayfolk
who want to mix their own
underglazes. Personally I dislike small jars and
prefer to mix up large
quantities that I can get my brushes into without
feeling that I have to
look in the jar to see how much is left with every
dip of the brush. It has
worked well for me in my initial testing. For
those high fire folks: I
haven't tried the Liquid with oxides yet but it
might work better than
glycerine and would not brush off as
easily.
Mason Color Works has used this recipe for 50 years.
GlazeType: Underglaze formula (measured in parts)
Components:
F-4 Soda Spar 20
Kaolin 10
Ball Clay 5
Frit (3124) 10
Stain 40
Liquid 75
Liquid Components:
Anti-freeze 1000cc
Water 1000cc
CMC Liquid 500cc
CMC Liquid(30 gms CMC to 1 qt. water)
and let sit for 2 days to break down.
Antifreeze is Ethylene-Glycol and is toxic. For a non-Toxic
substitution use Proplyene-Glycol as a direct substitution. This mixture
allows you to use a brush and paint directly on greenware without your
brush dragging. Notes: Stain can be a mixture of Stain and Opacifier if
a paler shade is desired.
Further Note: I have substituted frit 3195 for 3124 in my own underglaze
mix and it works well. Mason Color Works has used this recipe for 50
years.
Regards,
Harold Deeley
Labrador,
Canada
At 09:46 PM 3/4/01 +0000, you wrote:
>Can anyone help? I am a High School Ceramics teacher. Many of my projects
>require colored underglaze. To make things simple I usually use Amaco
>Underglazes. But as my classes get bigger the expense is too much. It would
>help alot if I could mix my own base and add colorants. I have tried
>several formulas that are formulated to apply to leather hard/greenware but
>the the results chip before and after firing and are not opaque enough.
>Does anyone have a low fire base underglaze formula that is as flexible as
>the commercial underglaze? My students and I will be grateful.
>_________________________________________________________________
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>
>___________________________________________________________________________
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>
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>
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melpots@pclink.com.
>
Eleanora Eden 802 869-2003
Paradise Hill eeden@vermontel.net
Bellows Falls, VT 05101 www.eleanoraeden.com
Autumn Downey on mon 5 mar 01
Eleanora,
Thanks for reposting the mason stain recipe - and getting rid of all the
little >>>'s etc.
I was particularly interested in the liquid component as getting that right
that may be the answer to our own recipe working better. Do you or does
anyone know if the crimsons work ok in this base? There doesn't seem to
be alot of calcium and I'd always thought that was necessary.
Thanks again - have just been trying out the propylene glycol recently.
This kind has a strong cherry smell to it!
Autumn Downey
Yellowknife, NWT
>Mason Color Works has used this recipe for 50 years.
>
>GlazeType: Underglaze formula (measured in parts)
>Components:
>F-4 Soda Spar 20
>Kaolin 10
>Ball Clay 5
>Frit (3124) 10
>Stain 40
>Liquid 75
> Liquid Components:
> Anti-freeze 1000cc
> Water 1000cc
> CMC Liquid 500cc
>
> CMC Liquid(30 gms CMC to 1 qt. water)
> and let sit for 2 days to break down.
>
>Antifreeze is Ethylene-Glycol and is toxic. For a non-Toxic
>substitution use Proplyene-Glycol as a direct substitution. This mixture
>allows you to use a brush and paint directly on greenware without your
>brush dragging. Notes: Stain can be a mixture of Stain and Opacifier if
>a paler shade is desired.
>
>Further Note: I have substituted frit 3195 for 3124 in my own underglaze
>mix and it works well. Mason Color Works has used this recipe for 50
>years.
>
>Regards,
>Harold Deeley
>Labrador,
>Canada
>
susan patt on tue 6 mar 01
What is the firing range for the recent Harold's Mason underglaze formula?
thanks,
Susan Patt
______________________________________________________________________________
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.
susan patt on tue 6 mar 01
What is the firing range for the recent Harold's Mason underglaze formula?
thanks,
Susan Patt
Marvin Klotz on sat 10 mar 01
Since haven't seen a response from a more knowledgeable source here
goes ... I have used that underglaze formula at cone 6 with Mason stains
and at cone 10 with Cerdec inclusion stains and it worked fine. I have not
tried anything at lowfire temperatures.
Regards, Joan Klotz.
At 03:44 PM 03/06/2001 -0500, you wrote:
>What is the firing range for the recent Harold's Mason underglaze formula?
>
>thanks,
>Susan Patt
>
>______________________________________________________________________________
>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.
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