Saturday, April 9, 2011

Salt-glaze Test Firing

Here's a firing I did last weekend, with a whole bunch of salt glaze tests, using the colourants out of my stoneware glazes in a more suitable salt-glaze slip.

Test salt kiln with chimney in place. The chimney height should be approximately three times in height from the diagonal width of the kiln chamber to get the best draw.

A view through the spy hole of some small test pots and cones 9 and 10

Adding some clay wadding pads to the base of all pots. The wadding is the same as my shelf wash (but with more water so its a kind of a slurry)  and consists of 50 percent Alumina and 50 percent Kaolin which repels the salt quite well and doesn't stick to the bottom of the pots.
Looking through the spy hole, around 800 degrees C

Opening the kiln the next morning to check out the results


Peter said...

Looks like you are getting some nice results with that little kiln of yours. I was interested to see your step by step photos of building the kiln, and it is great that it is working so well. Combining wood and oil seems like a good idea. I would love to come out sometime and see what you are up to. Some ideas about oil burners and gas burners would be most helpful. Best Wishes, P.

Danny Holland said...

Thanks Peter - you're welcome to come out any time - just give me a ring when it suits. I'll email you my phone number. Cheers, Dan.