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Member Since 28 Jun 2010
Offline Last Active Today, 10:50 AM

Posts I've Made

In Topic: Handmade Tile Show And Sale November 1St And 2Nd At The Uw Center For Urban H...

Today, 06:38 AM

Hey, and I didn't know the UW had a center for urban horticulture in Madison... <_<

Isn't UW's urban horticulture center located down on Mifflin Street?

In Topic: Cooking Pots?

Yesterday, 02:53 PM

I don't think there is a flap over micaceous clay; in fact, if I were doing this commission, that is what I would use -- not heavily grogged terra cotta (regardless of the "dudes" endorsement). If you know what you are doing, making cookware is fine. Personally, unless I have made the form and was comfortable doing so, I would be inclined to pass the commission. Don't have enough insurance if things go bad on someone's stovetop or in their microwave.

In Topic: Dangerous Gasses From Kiln

Yesterday, 02:38 PM

Here is clip from an old Clayart discussion, from Vince Pitelka:

"The outgassing of toxic volatiles can continue throughout the firing, so ventilation should continue as long as the kiln is firing. At low temperatures you have sulfur dioxide, and at higher temperatures you have zinc and possibly fluorine, lead (if any was present), and other materials. Once the kiln has shut off there is no toxic danger at all."

I usually get the sulfur burn-off around 800 to 1000F, especially for bisque fires. You will also get burn-off during glaze firings all through the firing cycle, wax at lower temps, glaze materials at higher temps. My kiln vents to the outside (it is an L&L), but I'm often not able to work in the studio when it is firing. That is one reason I tend to fire overnight.

In Topic: Cooking Pots?

Yesterday, 12:53 PM

and the dudes at the clay store said their clay was okay to cook with, provided it was heated slowly.

Ask them to show you the pots they made and use for cooking with; then accept their word.

Here is one person who makes cookware; multi-year apprenticeship. And, he digs his own micaceous clay. http://micaceouscook...com/pages/about

In Topic: Linda Bloomfield Glaze 04 Problems

Yesterday, 05:42 AM

What clay body are you using? What is the clay body firing range?