Alisa Clausen on thu 3 feb 05
Dear Clayart,
I had a lot of testing to do up to now for some ideas I had of my own, =
but now I have tested a lot of recipes found in ceramic publications.
Clay Art was discussing Purple Opals and Bristol glazes, so I got some =
of them in as well.
The kiln was fired to 1240c instead of 1220c because the bottom has been =
so cold. The cone 6 on the top was bent way down, but not flat. The =
bottom was just bending. Ew. The tests were all over the kiln.
The darlings of these tests were Emmanuel Cooper's Wide Firing Base, =
which fires between cone 5-8. I found the colorants to be interesting =
and the base produced an overall smooth mat.
I also was interested by the active surface of Mouse Brown with Titanium =
and RIO. It is mat and glossy, streaky and has crystals.
Bacia helped me through my latest attempt to get a Lichen affect. Using =
Brian Kemp's recipe and Bacia's instructions, it is beginning to take =
form. I have tried this several times with Ababi and Lana' recipes. =
The tips and advice can make these recipes work. Thank you Bacia.
Further, I am irked by Jeannie's Purple. This is not my glaze, it is =
John and Ron's. I am sure they are pleased that we all honored their =
wishes and did not publish the recipes from MC6G on Clayart. I tested =
them all, as have many, many others. We all gave consideration to their =
wishes, even if some of us did not agree with them. I think the main =
idea was for people to just not trade recipes, but get the book and =
learn something more about glazes, chemistry, application, firing, =
safety and much more. =20
Jeannie's Purple is noted in Clay Times as a recipe based on John and =
Ron's Raspberry. However, it is the base recipe for Raspberry, but the =
oxide additives have been revised. Now it is Jeannie's purple. Not my =
glaze, not my job to speak out maybe, but I do not agree with taking =
someone's recipe, adjusting the colorants and claiming it by name. =
There was also a Blue Raspberry at some other point, but it was called =
Raspberry, Blue Version. The recipe was not published on Clayart, it =
was suggested to add an amount of Cobalt to the recipe.
Clay Times is a respectable and well read publication. I am surprised =
that they published this one for their great glazes, with all the =
gazillion other recipes one could use. It could be a great recipe, but =
call it what it is. It is of course John and Ron's opinion that =
matters because they made the glaze? I am not 100 percent sure how I =
feel about the secrecy around MC6G, but I have never compiled my own =
glazes to any large degree or published a book, so I continue to respect =
the authors' 'wishes because I think I understand why they asked us for =
this favor. It is a favor, that is all and we have been all rather =
neighborly. So, this irked me.
Moving along, rapidly, I have been testing a glaze materials along the =
line of Brian Garthside's experiments. 50/50 and 3 part combinations. =
The first tests I used Cornwall Stone as the constant. Very exciting =
testing. I will report on them soon and probably by tomorrow I will =
photos posted of the recent test tiles. Hope there is something you can =
use.
Until then,
Regards from Alisa in Denmark
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