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      Moderators needed!   12/08/2017

      Ceramic Arts Network is looking for two new forum moderators for the Clay and Glaze Chemistry and Equipment Use and Repair sections of the Ceramic Arts Network Community Forum. We are looking for somebody who is an active participant (i.e. somebody who participates on a daily basis, or near daily) on the forum. Moderators must be willing to monitor the forum on a daily basis to remove spam, make sure members are adhering to the Forum Terms of Use, and make sure posts are in the appropriate categories. In addition to moderating their primary sections, Moderators must work as a team with other moderators to monitor the areas of the forum that do not have dedicated moderators (Educational Approaches and Resources, Aesthetic Approaches and Philosophy, etc.). Moderators must have a solid understanding of the area of the forum they are going to moderate (i.e. the Clay and Glaze Chemistry moderator must be somebody who mixes, tests, and has a decent understanding of materials). Moderators must be diplomatic communicators, be receptive to others’ ideas, and be able to see things from multiple perspectives. This is a volunteer position that comes with an honorary annual ICAN Gold membership. If you are interested, please send an email outlining your experience and qualifications to jharnetty@ceramics.org.
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Hello all!! I am having an issue with my small tiles crazing. Very fine lines are showing up after a month. I am using b mix clay to ^06 first then paint/glaze then firing to ^5. I have made over 100 triangular tiles. Can I glaze them again with clear glaze and fire to a low fire? Or are these trash!!!! Thanks!!! The crazing is actually pretty so I don't have a problem with it as far as visuals. My concern more so is the moisture issue. Linda

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Crazing is generally a fit issue, though it can be from cooling too quickly as well.

 

Is this a commercial glaze, or one you made?

 

A low fire clear, would help seal and smooth out the surface, over top the crazing.  Though  a clear, on top of the other glaze, can change the appearance of the lower glaze as well.  

If your clay vitrifies at Cone 5, then it should be non-porous, so moisture wouldn't be a concern.  Though if they are used for food and drink, the crazing will leave places for bacteria to grow.

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There are so mant variables more details would help

Heres a few

is your B mix cone 5 clay?

Is your cone 5 glaze homemade if so what is the formula?

What is the final use of these tiles?counters or bathrooms?-decorations on the wall?

what is your firing and cooling cycles?

Mark

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Laguna B mix cone 5 clay. Mayco Clear Brushing Glaze. Speed medium/ Preheat 5 min/ Hold 20 min/ Cool @140

 

They are for a bar in a restaurant so moisture would be a huge issue!!

 

I'm not having any problems with the stroke and coat glazes. Just the triangles where I use

a velvet underglaze with the clear glaze.

 

I guess I'll remake them using a stroke and coat glaze. We just liked the color of the other.

I tried using Laguna's cone 5 glazes, but I really don't like the way they go on and fire. They just seemed so much thicker even when thinning, they thicken up again quickly

 

Just hate to see these tiles/time/money wasted!!!!!

 

Thank you!!!!

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