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where can i learn about glazes? (recipe etiquette question)

updated sat 4 jan 03

 

Kathy Catlin on fri 3 jan 03


This is a great post! I am interested in Cone 10 glazes (oxidation)...and I
have a question about glaze recipe etiquette- is it bad form to directly ask
someone for a recipe(s)? Any advise would be helpful. Thanks!



Quoting PeteTree@AOL.COM:

> Can anyone recommend any good books or websites which offer good
> information on Glazes. I know next to nothing now and my old college
> ceramics book doesn't help much. I am wanting to learn as much as
> possible, eventually how to develop/calculate recipes.
>
> Thanks much,
> Peter
>
> ______________________________________________________________________________
> 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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Earl Brunner on fri 3 jan 03


Back in the 70's a lot of potters that I knew were kind of secretive
about their glazes, viewing them kind of as signature glazes. If they
did share, often the results weren't the same. I used to thing that
that was because they deliberately left something out.

Now, I don't think things are that way. Firstly because there are just
so many glaze recipes out there, that with a little work you can
probably find anything. Secondly, and this might seem a little
contradictory, but there probably aren't that many glazes that are
really radically different. I would venture a guess that 90% of the
glazes out there probably are variations on maybe 20 or so glazes.

Another consideration, Tom Coleman has been very generous about sharing
his glazes. He has published them in several different formats. I have
worked in his studio and taken classes from him and I use his formulas.
Yet I have heard people complain that he must not have given out the
whole formula because they don't get the same results. Look in the
archives, people have said it here. I don't believe it is the case. I
believe that there are reasons why we don't get the same results as
others.
a. our chemicals, while being called the same thing might come from a
different source and have different compositions.
b. we all fire in different kilns, updraft, downdraft, different
burners, different fuels, different climates, different elevations etc.,
etc.
c. sometimes application is critical


Anyway all that to say this, ask, if they don't want to share, they
will tell you. Generally, I feel that people are much more open about
glazes and sharing today than they were 20-30 years ago.

Earl Brunner
Kathy Catlin wrote:
> This is a great post! I am interested in Cone 10 glazes (oxidation)...and I
> have a question about glaze recipe etiquette- is it bad form to directly ask
> someone for a recipe(s)? Any advise would be helpful. Thanks!
>
>
>
> Quoting PeteTree@AOL.COM:
>
>
>>Can anyone recommend any good books or websites which offer good
>>information on Glazes. I know next to nothing now and my old college
>>ceramics book doesn't help much. I am wanting to learn as much as
>>possible, eventually how to develop/calculate recipes.
>>
>>Thanks much,
>>Peter
>>
>>______________________________________________________________________________
>>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.
>>
>
>
>
> ----------------------------------------------------
> "Visit Capital.NET online at http://www.capital.net"
>
> ______________________________________________________________________________
> 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.
>

kruzewski on fri 3 jan 03


A few years ago Frank Hamer did a talk on glazes to us at North wales
Potters. This was SO informative and he made it really interesting.

One thing Frank talked about was sharing glaze recipes. He said that all but
a few will gladly share recipes because they know perfectly well that
results will alawys vary and the chances of someone else getting the exact
same results are slim. He put it down to each kiln being unique, not just
because of different fuels, or differences in basic materials, but simply
that each kiln has it's own character and will produce different results
even though the fuel used and the firing program is exactly the same.

Although I had no reason to doubt him, I now know from my own experience
that this is true. I started off with a small hobby kiln - only 1.5 cubic
feet, electric. Eventually I upgraded the elements in that kiln so they
lasted longer - i was getting less than 60 firings out of a set of elements,
and as long as I increased my soak time to compensate for the extra time it
used to take to get to temperature my glazes always worked out exactly the
same. Then I bought a larger kiln - about 4.5 cubic foot, front loader
instead of top loader, oblong not round, but still electric. The two kilns
are right next to eachj other, I can even fire them off the same controller,
and use the same firing schedules, but the glazes always work out
differently. There's a really nice blue glaze I use that just sings in the
little kiln - it's OK in the other one, but I've never got it the same or as
nice, no matter what I've done.

Frank was right.

Jacqui
North Wales

----- Original Message -----
From: "Earl Brunner"
To:
Sent: Friday, January 03, 2003 6:11 PM
Subject: Re: Where can i learn about Glazes? (recipe etiquette question)


> Back in the 70's a lot of potters that I knew were kind of secretive
> about their glazes, viewing them kind of as signature glazes. If they
> did share, often the results weren't the same. I used to thing that
> that was because they deliberately left something out.
>
> Now, I don't think things are that way