Sunday, August 24, 2008 | No comments yet
Watershed: Atmospheric Firing with Tyler
One of my goals for my time at Watershed has been to learn as much as possible about the processes of salt and soda firing. Unfortunately the viability of the soda kiln has been constantly in question, and it has only been fired twice since I have been there, so the opportunities for this particular type of firing have been few.
The empty kiln sits in waiting.
However, Watershed’s Interim Executive Director, Tyler Gulden is himself a brilliant potter known for his simply beautiful utilitarian pots, with subtle atmospheric glaze patterns. Tyler keeps his studio at home, but often brings his bisque-ware to Watershed for glaze firing. So, last week I was fortunate enough to have to opportunity to shadow Tyler as he went through the process of salt & soda firing his ware.
The soda kiln coming up to temperature in the Maine twilight.
The kiln was loaded on Tuesday, candled overnight to warm everything up slowly, then the real firing began on Wednesday morning. We gradually brought the kiln up to temperature throughout the day, closing the damper for body reduction from about 12 to 1pm. We then added salt at around 5:30 that evening. Finally, at around 9:00pm, as the kiln reached cone 10, we injected soda ash mixed with water, and turned off the burners shortly after.
Tyler injecting soda ash and water solution into the kiln.
I am always excited to open my electric kiln when it is full of finished, glazed work. However, there is just no parallel to the excitement of opening an atmospheric kiln…be it a salt/soda kiln or wood fired. Since there are so many variables in play, from the exact temperature of a particular firing to the amount of salt introduced, much is left up to chance. After allowing the kiln to cool slowly overnight and part of the next day, we were finally able to unbrick the door the next afternoon.
Fired ware in the kiln.
The results of this firing were somewhat mixed. Tyler got some great surfaces on his mugs, but was not quite happy with his plates; I was very pleased with a small winged house sculpture, but a larger house from the same clay body was not what I had wanted. However, the greatest benefit of this experience was the ability to work with and learn from someone who is both an outstanding potter and a wonderful teacher. Thanks Tyler!



























