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neilestrick

Member Since 04 Oct 2011
Offline Last Active Apr 17 2015 06:30 PM
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Posts I've Made

In Topic: How Often To Clean Your Kiln?

17 April 2015 - 06:31 PM

I shouldn't tell you this, but I've got almost 1000 firings on my smaller kiln and I've probably only vacuumed it out about 10 times.


In Topic: How Often To Clean Your Kiln?

17 April 2015 - 04:39 PM

Every dozen firings or so would be super good, but whenever it gets to looking messy is ok. It's surprising just how much stuff can accumulate on the floor and in the element grooves even if you're not blowing things up. Definitely vacuum it out well if something blows up.


In Topic: Defloculate, Or Add Water?

17 April 2015 - 02:34 PM

Any chance you put way too much bentonite? That would make it gel, too.


In Topic: Defloculate, Or Add Water?

17 April 2015 - 01:45 PM

First, I recommend always screening through an 80 mesh sieve. 40 will leave a lot of large particles. Second, this glaze is somewhat low in clay content. I like to have at least 10% in my glaze. Because of the low clay content, It will have a tendency to go on less even than other glazes, and show drips more. I would run some tests increasing the ball clay and see if you can get up to 10% or more without affecting the glaze melt. This glaze is off the charts for zinc, and very low in alumina and silica, so getting more clay into it shouldn't hurt.

 

As for your current bucket of glaze, it sounds like maybe you added too much sodium silicate, which will cause the glaze to thicken up. I would try adding more water, but only a little bit at a time.


In Topic: Is There Any Way To Give Stoneware White Clay The Look And Feel Of Terracotta?

17 April 2015 - 12:28 PM

What cone and what type of firing?