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Is this crazing and if so what causes it? I've been using this glaze and several others for a year now and I've never had problem with them until now. The only things that really has changed is that I have hep glazing now to keep up with orders and shows. Could this be from over application possibly? It's only been on stuff that I didn't glaze myself but other things they glaze turn out amazing. I just want to stop this from happening so anything help!

post-82677-0-90236100-1497462157_thumb.jpg

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Your photo shows (its in shadow at the place we need to see) a raised line that looks like a contaminant in the glaze to me. It looks raised above the glaze level is that the case?

Have you screened this glaze since this started happening?

glazenerd likes this

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I agree it looks like there was something in either the clay or the glaze that burned out in the kiln leaving the glaze imperfection.

 

T

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It's not crazing, but it could (emphasis *could*) be the beginning of crawling, which has several causes. One of which is too thick glaze application,

 

My reaction is less about the glaze flaw, and more about why would you let other people glaze your pots? Don't treat that step as if anyone can do it. It takes as much practice and understanding as everything else in pottery. If you really need help, make sure you train your helpers to do things exactly the way you would. And still you must oversee their work very carefully.

Roberta12 likes this

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In community settings, many times crud from pots falls into glaze buckets. Before using they should be screened. Glaze your own pots. It takes time to learn this skill. If you se a lump on the surface after glazing  before the glaze firing, pick it off nd touch it up.

What you have is not crazing as Mia said.

Marcia

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