Episode 101 – Are ceramic sealers safe to use on functional ceramics?

Today we return to the much loved topic of glaze durability on For Flux Sake. Kathy, Matt, and Rose start by talking about the long term durability of Bristol glazes. Then they delve into listener questions about ceramic sealers and substituting for Gerstley Borate in Raku glazes.

Do you have questions or need advice on glazes? Drop us a line at ForFluxSakePodcast@gmail.com and you could be featured on an upcoming show.

Today’s episode is brought to you by Cornell Studio Supply and and the newly translated Spanish version of Ceramic Materials Workshop The Middle Glazes

Glazing problems? Kiln meltdown?

Send your questions to forfluxsakepodcast@gmail.com – you might hear the answer on the show!

Want to learn more?

Check our our blog articles and all of our videos on our YouTube channel!

Share this Episode

Explore our courses!

Not sure where to start? Get help finding your learning path.

Start Learning

Recent Podcast Episodes

We love when our international friends call in and today we have a great question from Colombia. The gang talk about making vitrified clay with South American ingredients, the logistics of changing firing temperatures, and the effect of rebisquing a pot.
We start today’s episode with a trip to Materials Corner to talk about #1 Pottery Plaster. The gang also answer listener questions about converting celsius to fahrenheit and the cooling rates of kilns.
This week’s show starts with a discussion of a recent viral ceramic video and the merits of a potter dipping pots in water immediately after glazing. The gang also answer listener questions about the amount of boron glazes, melting in cone 6 mattes, and a safety concern from drinking out of a crazed mug.