Ceramic Materials Workshop
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ceramicmaterials.bsky.social
Ceramic Materials Workshop
@ceramicmaterials.bsky.social
Rose+Matt Katz=all things technical ceramics.
Online ceramic materials education and consulting services.
╰┈➤ˎˊ˗ Here to help you understand why clay and glazes work (and why they don't)
linktr.ee/ceramicmaterialsworkshop
Having some fun with Tomato reds on this unexpectedly snowy spring morning.

This is Lauren’s tomato, which you can find the recipe for on our Glazy page. It’s a really robust tomato red.

#tomato #red #glaze #pottery
March 25, 2025 at 7:02 PM
Playing around with some fake shinos. One of our students theorized that the broken cream/brown color may rely on bleed from an iron bearing clay. (It isn’t, more on that later). But we did test on this spotty stoneware from a client. We got this great effect where the iron nodules do bleed through
March 9, 2025 at 1:22 PM
This one is copper and titanium. The broken crystallization is pretty alluring to me.
February 21, 2025 at 1:06 PM
I’m getting out some good glaze test this week. I’m loving the double crystallization on this copper TiDi one.
February 21, 2025 at 12:41 AM
I always say that I don’t have hobbies, just glazes all the time. But I do like cooking and baking.

So I made scones on this snowy Sunday, rather than tackle the snowplowing.
February 16, 2025 at 4:50 PM
We’re premiering our newest video. Today @12:30 eastern on YouTube!

Join us here.

youtu.be/WQ7qm2S4zT8?...
Gravity of the Situation - Specific Gravity and Viscosity in Ceramics | Ceramic Materials Workshop
YouTube video by Ceramic Materials Workshop
youtu.be
February 12, 2025 at 3:06 PM
Working on the next Cracking the Kiln video for our YouTube channel! What do you all think? Is this my color???
Any guesses on what this video is going to be about?
February 11, 2025 at 7:21 PM
Mornin’

The workshop faces east, so it makes the most of that low winter sun in the morning. Drawing us in, do get a few things done, after the kids are on the bus before things get crazy.

Lots of people hate the cold and the winter, but we love it. It’s just takes making the most of the light.
January 30, 2025 at 2:03 PM
It’s clay body testing season, as we start to look at our first results from our clay bodies class.

This one from Biliana, shows so many options with the combinations of Gage Red-Lincoln Fire clay and Tile 6.
January 28, 2025 at 2:49 PM
Nice to see all the new people,
Opening up Blue Sky this morning.

Looking at all the fun new glaze and clay body tests submitted over the weekend. While listening to Radiohead from Coachella 2017, this morning.

Hope everyone has a great week planned.
January 27, 2025 at 2:36 PM
Mmmmmmmm. What I love about glazes is how much we can do with simplicity.
This once came out today and there is so much activity going on. Yet this glaze is so insanely simple, just silica, alumina, sodium calcium and cobalt for the color.
January 24, 2025 at 12:05 AM
This image is Clay Art Center's English Grolleg body and it has the same curve as the dark Redstone body.
December 4, 2024 at 2:09 AM
This is L.O.I. or "burnout" for Laguna WC420- Redstone, which is a dark body. We are tracking weight loss of the sample with temperature, and you can see that the vast majority of the loss happens before cone 020. And the last image is Clay Art Center's English Grolleg body and it has the same curve
December 4, 2024 at 2:08 AM
Seriously you guys. There is nothing burning out past cone 08. And there is no such thing as a "clean bisque", by bisquing hotter. Anything that does decompose leaves the body primarily by cone 020 and realisitically by cone 012.
December 4, 2024 at 2:07 AM
Firing a hotter bisque does not do what the community thinks it does.
December 4, 2024 at 2:06 AM