Red Rocks's Profile
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Topics I've Started
Posted 5 Oct 2012I just finished reading Nils Lou's book on kilns and firing. In one of the chapters he discusses the fuel efficiency advantages of using ITC coatings on the inside of a kiln, advantages which are widely known (up to 30% reduction in fuel). Not so widely known, he also discusses using ITC on kiln shelves, I will summarize his comments below:
He recommends applying ITC100HT to kiln shelves and firing them twice. He then adds ITC296A as a top coat and fires again. He says that this will upgrade the common cordierite shelf from a rating of 2282F to 2462F and significantly extend its life. The shelf will not warp and it does not require kiln wash.
Has anyone on the forum had successful experience with this approach? If you have, one important detail he leaves out – is he putting the coating on both sides of the shelf and flipping them or does coating one side suffice?
I have sent him an email as well in the hopes he will respond and clear this up for me. It sure sounds promising.
Posted 5 Oct 2012I would be interested to know what electronic tools/software people are using to create announcements and/or invites to open studios, shows and other events. I have had good success with Evite largely because it is ways to use and create simple designs. It also has a great RSVP feature so that you have some idea of attendance and who is responding to your announcement.
What other tools are being used out there?
Posted 29 Sep 2012I wonder if anyone can shed some light on this. I found an old glaze book with some great recipes I remember in it. There were some that do not fit the glaze formula adding up to 100% and the additions normally take it over or are in addition to 100%. The two recipes below are examples of what I mean. They are more like a cake recipe made up of various ingredients in a random fashion, one formula adding up to 112% without additions and the other only 94%. The percentages were not with the recipes, I calculated them because the formula did not look correct.
Is this way of mixing glazes a correct way or is there a calculation you are supposed to use to convert the glazes so that they fit the 100% rule?
Thanks in advance for any insight you can provide.
Chemical % Grams
Kona F-4 54% 1620
Silica 29% 870
EPK 8% 240
Magnesium Carb 8% 240
Bone Ash 13% 390
Sub-Total 112% 3660
RIO 8% 240
Bentonite 2% 60
Totals 122% 3960
Custer Feldspar 45% 1350
Whiting 13% 390
Silica 25% 750
EPK 11% 330
Sub-Total 94% 2820
RIO 8% 240
Bentonite 2% 60
Totals 104% 3120
Sorry for the way this is formatted - I tried 5 different ways and it always turns out a mess. Hopefully you will be able to decipher it.
Posted 12 Sep 2012I wasn't sure which forum to put this on but this one appears to be the most active and I wanted to share it with all of you in the hopes that others will share insights in a similar vein they have gathered and that have positively affected their life and work.
I just finished re-reading Marguerite Wildenhain’s wonderful book for the first time in 25 years. It is an amazing book full of insight and observations on her life as a potter and teacher. She was at the world famous Bauhaus in Germany before the Nazi’s came to power. She escaped to California and established Pond Farm in Sonoma County where she had her studio and summer school. Many renowned and successful potters studied with her.
The book is full of her philosophy on art and pottery, the following one spoke very loudly to me and I thought it was well worth sharing:
“Some days everything seems dark, hopeless and full of negative self-criticism, for nothing, no matter how hard one tries will develop as form – but there are days when an angel seems to have touched you with his wing – life is then radiant, work flows easily out of a mysterious source that is barely of your own making, that carries you way beyond what you could make yesterday, and a beautiful piece of work is born under your trembling soul. Be grateful. It does not happen often. “
Marguerite Wildenhain – Pond Farm, Sonoma, CA 1973
Posted 21 Aug 2012I just finished reading the old thread on potter's who influenced your life, started by Marcia. How about an off-shoot? "The top 5 books on pottery that influenced you the most. I would list mine as:
- Marguerite Wildenhain - The Invisible Core: A Potter's Life and Thoughts
- Bernard Leach - The Potter's Challenge
- Michael Cardew - A Pioneer Potter
- Charles Counts - Pottery Workshop
- Frederick Olsen - The Kiln Book
I am always looking out for new books (or old ones for that matter) on pottery and the philosophy of pottery – so hopefully this will start a thread of us sharing books that have inspired us.
- Member Title:
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- Age Unknown
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- Sedona, AZ
- Besides pottery - organic gardening, sustainability, perma-culture, golf, visiting other potter's studios and sharing information, along with international travel.
- Click here to e-mail me