Comment

Comment by Norm Stuart on September 29, 2017 at 9:07pm

Very nice. A 50 F per hour slow-cool provides the same look as a hard fire brick kiln which naturally cools that slowly.

Comment by Joseph Fireborn on September 29, 2017 at 7:44pm

Ran the schedule. Everything came out very nice. Going to keep using it for a while. Mixing up some orange street this weekend and firing it. Thanks for all the posting you do on these forums Norm. 

This was the result of your schedule: https://www.instagram.com/p/BZpLvzblSjT/

Comment by Joseph Fireborn on September 28, 2017 at 2:41pm

I am only firing one iron glaze this go around, but I am sure the others will show up interesting as well. 

Comment by Norm Stuart on September 28, 2017 at 2:15pm

Most iron glazes change appearance greatly with the slow-cooling speed.

There were some popular (non-iron) translucent glazes which became too opaque and crystallized with a slow-cool.

So some, like Tang Lime, I converted to low-fire bisque-temperature glazes;

Others became new interesting and different Cone 6 glazes with the addition of 20% of a very fluid frit added.

Each of five frits I used to add 20% to the original recipe made a completely different glaze - it's kind of fun - Ferro Frits 5301, 3269, 3134, 3110, 3124.

You can also try the higher magnesium 3195 or high magnesium 3249, but these tend to make semi-mattes out of the glazes which over-crystallize in a slow-cool.

There's always at least one winner.

Comment by Joseph Fireborn on September 28, 2017 at 1:08pm

Going to run your schedule tonight to see how it looks on my current line of work. Trying to lower my total schedule from 16-17 hours down to 14-15. I will post some results under pictures when I take it out. Hopefully it looks as good as this! hahah. Although no orange street in there this time. But I am going to mix up some of that glaze if I keep running this schedule.