Yes, I wonder the same thing. I've been thinking of having small salt kiln, and this is actually the first time I saw a fibre one. If you know plan/materials, please share that with me.
Fumes produced rom the firing process produce sodium oxide Na2O (gas) and hydrogen chloride HCl (gas)which is acidic rather than toxic. At a craft level volumes are very small.
The balls are called wadding. They prevent the pot from being fused to the kiln shelf as the glaze forms. There are different recipes, but most mix alumina hydrate and clay with flour and water to make a paste or dough. The small areas which don't glaze are indicaters that the piece has been salt glazed.
Very interesting....I agree with the comment about the lack of narration, but I guess that couldn't be helped...perhaps a music track could be put on ? also -was that Krithia I briefly glinpsed about 3 minutes into the video??
THanks for your comments. I will try to find ti9me to add some background commenst and music. Yes, the potters who helped construct the kiln all work at Anvil Pottery, Llanrhaeadr, near Denbigh, North Wales. Allan Hughes, John Hughes and Krithia Roberts.
We used our fibre for three firings and them replaced it, coating it with a waterdown fire cement. Some people say that some of the coating materials can themselves flake off and spoil work, which is why we didn't bother with a coating on the first build. We have an offer of a new type of coating to experiment with as we refine our experiments.
The crash cooling is to allow us to show the pots to the audience at the show. The orange peel effects should have already developed, but the colours can be affected by the rate of cooling.
Sorry about the sound. The kiln is ceramic fibre, and (when we don't have a blocked burner can be brought up to 1220 degrees C in 3 hours, salted over a 30 minute period with 4 pounds weight of salt, soaked at 1220 for 30 minutes then crash cooled. Pots out by 4pm.
I too have been considering a fibre salt kiln and was wondering if you had any plans/materials list for construction of the kiln?
Many thanks for posting.
kingy2063 3 years ago
Yes, I wonder the same thing. I've been thinking of having small salt kiln, and this is actually the first time I saw a fibre one. If you know plan/materials, please share that with me.
tbtb27 2 years ago
How are those very colorful glazes achieved, The ones which are almost metalic.. Not the copper finished the blues and greens etc
gamesgamesgames 3 years ago
Doent salt when added to the kiln produce very toxic fumes?
gamesgamesgames 3 years ago
Fumes produced rom the firing process produce sodium oxide Na2O (gas) and hydrogen chloride HCl (gas)which is acidic rather than toxic. At a craft level volumes are very small.
Saltteller 3 years ago
Whats with the little balls of clay on the bottoms? Is that for even salt glazing or to prevent shock from the shelves?
morriswil32 4 years ago
The balls are called wadding. They prevent the pot from being fused to the kiln shelf as the glaze forms. There are different recipes, but most mix alumina hydrate and clay with flour and water to make a paste or dough. The small areas which don't glaze are indicaters that the piece has been salt glazed.
Saltteller 4 years ago
Very interesting....I agree with the comment about the lack of narration, but I guess that couldn't be helped...perhaps a music track could be put on ? also -was that Krithia I briefly glinpsed about 3 minutes into the video??
jill46 4 years ago
THanks for your comments. I will try to find ti9me to add some background commenst and music. Yes, the potters who helped construct the kiln all work at Anvil Pottery, Llanrhaeadr, near Denbigh, North Wales. Allan Hughes, John Hughes and Krithia Roberts.
Saltteller 4 years ago
ITC 100
chightower26 4 years ago
How many firings can you do with the fiber? I was considering a fiber salt kiln coated with refractories to protect it.
chightower26 4 years ago
We used our fibre for three firings and them replaced it, coating it with a waterdown fire cement. Some people say that some of the coating materials can themselves flake off and spoil work, which is why we didn't bother with a coating on the first build. We have an offer of a new type of coating to experiment with as we refine our experiments.
Saltteller 4 years ago
Very cool but narration would be nice - otherwise 5 stars. Why the speed cooling? Is that what give thes texture?
pstimac 4 years ago
The crash cooling is to allow us to show the pots to the audience at the show. The orange peel effects should have already developed, but the colours can be affected by the rate of cooling.
Sorry about the sound. The kiln is ceramic fibre, and (when we don't have a blocked burner can be brought up to 1220 degrees C in 3 hours, salted over a 30 minute period with 4 pounds weight of salt, soaked at 1220 for 30 minutes then crash cooled. Pots out by 4pm.
Saltteller 4 years ago