Firing, Studio Tips
Kiln wash is a material that you can paint onto your kiln shelves. It looks very similar to a glaze when being applied. It acts as a barrier to prevent unexpected glaze runs or drips from ruining your shelves. Kiln shelves are made of a hard material that is similar to…
Studio Tips
If you run a community studio or your personal studio is high production, you probably have a lot of clay scraps to deal with. This article will describe the clay reclaim process we use at the very busy pottery studio where I worked as technician for 6 years.
Studio Tips
As clay artists, we’re so lucky that we can reduce the amount of waste we produce by reclaiming or recycling our unfired clay. When we make something that cracks, warps or doesn’t look how we wanted it to, we can reclaim our clay, bringing it back to its original state so…
Ceramic Glazes, Studio Tips
If you have too much clay in a glaze recipe, you might have issues with your glaze crawling during the firing. Crawling is where the glaze pulls away from the clay body due to a combination of shrinkage, poor adhesion and high surface tension.
Ceramic Glazes, Studio Tips
Glaze results on the thin side? As a studio technician at a busy pottery studio, it’s my job to mix and maintain 20 different studio glazes. I’m also the one studio users often go to for help when their glazes don’t work out as they had hoped. Every now and then…
Studio Tips
There’s a common belief in ceramics that leaving pockets of air in your clay, either due to insufficient wedging or by creating an enclosed form, leads to explosions in the kiln. The belief is often communicated in these ways: “Poorly wedged clay containing air bubbles will explode…”
Firing, Studio Tips
I receive a lot of glaze questions and the first question I generally ask in return is “What did the cones look like?” Knowing whether the kiln was over- or under-fired is important for diagnosing many glaze issues. Sometimes I’m told a kiln temperature in response. But…
Studio Tips
In this post, you’ll learn how to make a cone pack using pyrometric witness cones set into a coil of clay. Cones are important for measuring the heatwork of your firings.
Ceramic Glazes, Firing, Glaze Q&A Videos
What’s the role of witness cones in a kiln-sitter kiln? Question: Any suggestions for using witness cones when your kiln has a kiln-sitter rather than a controller? I have a small, old school doll kiln and can’t create a schedule. All I can control is on,...
Firing, Glaze Q&A Videos, Studio Tips
What’s the difference between Orton self-supporting cones and large cones Large cones vs Self Supporting cones Question: Orton temperature equivalents – I thought self supporting and large cones were interchangeable, but the table shows slightly different...
Ceramic Glazes, Glaze Q&A Videos, Studio Tips
Can I speed up my kiln’s cooling cycle? How can I speed up my kiln’s cooling cycle? Question: “What can we do to make big kilns cool down faster? Keep the door slightly open at a certain temperature?” There isn’t really a practical way to speed up...