Hi, folks. I had a bowl that came out of the last firing and I’m not sure if something went wrong with the glaze, I did something wrong in the firing, or something went wrong in the kiln. Or maybe I just made a poor choice of glazes, I don’t know. But I’m in diagnostic mode regardless.
I applied Mayco oxblood to the inside and mayco crackle matte clear to the outside. The results…didn’t seem to really go right for either. The inside is glossy and clear, the outside is technically matte, but still shows distinct brushstrokes and doesn’t even really look like it melted properly. The clay is Laguna Speckled Buff if that affects anything.
Any glaze called Oxblood is finicky at best. Matte glazes are more likely to show brush strokes as they don’t flow like a glossy glaze does. Maybe you needed more layers??? Just a guess.
My experience with Oxblood is that it takes more than 3 thick coats to get the affect it describes. I have not used the matte crackle before.
However, speckled clays will change the way the glazes react quite a bit. I’m not sure that a crackle affect would show up well on this clay. I had a very stable glaze on white stoneware run completely off the piece on speckled clay.
All right, thank you both. Lesson learned for next time; tbh I bought the speckled buff for the first time last year and I’m not sure if I’ll use it again once I’m done with it.
On the crackle…you would need to apply black alcohol ink to really see the outcome. If it doesn’t show the crackles…refire with a new glaze. It’s a pretty bowl…at least try😀
What’s the policy on refiring? I know in general it’s ill-advised because it makes the ceramic more brittle but I don’t know if there’s specific rules on it
My experience with matte clear glazes is: 1 application needs to be very even otherwise you can get random cloudy areas instead of uniform clear and 2 if it’s applied to thickly then it tends to get cloudy instead of clear.
