Electric Mid&Hi Fired Ceramics
Steven Hill Oxidation Project
Achieving atmospheric glaze effects in electric kilns at mid-fire temperatures, through the layering of sprayed glazes. The starting point recipes are given in two discussions "Strontium Crystal Magic . . ." and "The Companion Glazes"
Brown Clay with Hill Glazes/Firing
My pottery goal for this year is to learn to create Hill-type glazes and successfully fire them. I am just getting started with this project. I would prefer to use brown stoneware, probably starting with Highwater Brownstone. I also plan to try firing the glazes I already have with Hill's firing schedule and then make his strontium glazes when the weather warms up, simply because I prefer to mix glazes outside. I don't really like glossy glazes and want to see what the ones I have do in his firing.
Does anyone know of any potential problems with the brown clay or firing schedule?
Does anyone know of any potential problems with the brown clay or firing schedule?
Brian Dean
Diane, I've used a number of different type of stoneware bodies including Laguna B-Mix, Amaco Warm Brown Stoneware, and others. Have had many problems with pinholing especially which the Stontium Crystal Magic and cobalt carbonate and cobalt oxide colorants in the mix. I think I'm resigned to moving to porcelain now to try and combat these problems which cause a high percentage of pots that I have to take a hammer to. Just trying to save you the pain. Brown clays have a high iron content and other impurities that are likely to cause outgassing to occur and Steven Hill's glazes tend to accentuate that. Plus colors are much more muted than on a white clay body. I'm doing tests with several different porcelain clay bodies now but tend to think that porcelain will help. FYI
Jan 9, 2014
Diane Puckett
Jan 9, 2014
Mark Goldberg
Hi:
Not at all. The glazes work very well on red stoneware. I am using Plainsman M-390. Just posted some examples.
Dec 6, 2014