Glaze firing part two

3-24-09Unloading the old paragon kiln, and trying to figure out why some glazes are giving me so much trouble with blisters. Maybe a little closer to figuring it out.

Category:

Travel & Events

Tags:

• kiln
• firing
• stoneware
• clay
• wheel
• pottery
• glaze

[DirtKickerStudio]

The large cream colored dish is very cool. This time of year I'm really digging the lighter colors. The large green bowl with handles is a favorite too.

The green casserole dish is really nice. Does the blistering make it unsafe to use?

Thanks for sharing :)

[StellaTIJ]

Hey Cindy,

Thanks! those are my faves too.

Not in this case, the clay is vitrified and the one or two blisters are not a big deal, I'll take the dremel tool to em and soften the edges so they don't trap bits of food in there.

Jess

[kroraven]

Thank you for sharing, your pots look great! Sorry about the blistering. Do you have a vent in your kiln? I have only done a bisque firing in my kiln, hope to do my first glaze firing soon.

Thanks again ~ Karen

[StellaTIJ]

Thanks Karen! I do not have a vent, I think I need to look into that.

Have fun with the glaze firing!

Jess

[clearvision5]

Glad you posted this! It helped me to evaluate what is going on with my firings. I just got a new kiln (again) this time its got a controller so I'm hoping I can get a more precise idea about the firings.

What was the difference in the clays? Could it just have been a bad batch...how do you know?

[StellaTIJ]

The basement is damp. Does that give you problems? The kiln evaporates the moisture in the brick or pots (not that I have ever had to put damp pots in) in the early stages of the firing...so why use the dehumidifier?

That does look like a mini me, but it's my little sister :)

[StellaTIJ]

Hey Dan,

Do you mean the the slightly different temps the witness cones are showing? I don't think that's the cause of the blistering either. I was just using the video as a record of what happened on each shelf.

Yeah the two pots that I glazed awhile back did come out much better, but I realized afterwards that it was the same batch of glaze as on all the blistered pots. So the only big difference was the type of clay.

Thanks :) I will!