Glazes - Theory and Chemistry (36)

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Recipes from John Britt's "The Complete Guide To Mid-Range Glazes", now in Insight-Live

John Britt has graciously allowed Tony Hansen, creator of Insight, to add the recipes from his book, "The Complete Guide To Mid-Range Glaze…

Started by Lawrence Weathers

6 Oct 6, 2015
Reply by Norm Stuart

Predicted COE (Coefficient of Expansion) - trust your actual results rather than the predicted COE

One of the helpful tips Tony Hansen of Digitalfire has passed on to me is the "calculated thermal coefficient of expansion" in Insight-Live…

Started by Norm Stuart

1 Sep 10, 2015
Reply by Marina Reijsmeijer (Kleierij)

Deflocculant - Sodium Citrate

I wonder if anyone has used Sodium Citrate as a deflocculant? Digitalfire Deflocculants, including Sodium Citrate At $5 per pound it's as i…

Started by Norm Stuart

2 Jul 3, 2015
Reply by Norm Stuart

Copper Sulphate - what' it good for?

Hi all, I was working on my shopping list for the local ceramics supplies store and saw Copper Sulphate listed under coloring oxides.  It…

Started by Chantay Poulsen

4 May 15, 2015
Reply by Marina Reijsmeijer (Kleierij)

Can I use porcelain slip on my stoneware body?

I work with a tan cone 6 stoneware clay body,(Trinity cone 6), and I am wanting to layer on a white basic slip over my clay body in differe…

Started by juli long

8 Apr 22, 2015
Reply by juli long

Testing Glazes for Durability, Fit, and Toxicity on Functional Ware

Testing glaze toxicity, fit, and durability can be a two tiered process. You can run a number of tests at home with very limited equipment…

Started by Liz Gamelin

11 Mar 15, 2015
Reply by Norm Stuart

Crocus Martis

i have heard that glazes mixed with Crocus Martis as your colorant should be mixed in smaller batches that over time that colorant breaks d…

Started by Kim Estares

4 Mar 9, 2015
Reply by Kim Estares

Water to mix glaze

Hi all,  I'm new to cone 6 and have moved studio to town.  I'm wondering if the town water is messing with the glaze. It seems to be precip…

Started by Margaret Edington

3 Feb 19, 2015
Reply by Margaret Edington

Kiln Vent

Hi All, I'm not sure if this is the right place to stick this question / discussion so forgive me if I didn't find a more appropriate topic…

Started by Andrea Wolf

2 Jan 23, 2015
Reply by Andrea Wolf

John Britt's new cone 4-7 glaze book

Received John Britt's The Complete Guide to Mid-Range Glazes for Christmas - fabulous book and have been enjoying it immensely.  If you hav…

Started by Carl Ray Crutchfield

4 Jan 9, 2015
Reply by Carl Ray Crutchfield

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Low cost flat lapping disc can be used on you potters wheel if you, drill bat pin holes in it, and provide a trickle of water to cool it. At amazon.com, 120 grit for aggressive material removal. Click the image to purchase 

Members have had great things to say about John Britt's new book, Mid-Range Glazes. Click the image to buy from Amazon.com

Purchase Glazes Cone 6 by Michael Bailey, The Potters Book of Glaze Recipes by Emmanuel Cooper, or Making Marks by Robin Hopper, all available at amazon.comMastering Cone 6 Glazes by John Hesselberth & Ron Roy is now out of print.

Harbor Freight is a great place to find unbeatable prices for better HVLP spray guns with stainless steel parts and serviceable economy models, as well as detail guns, all tested by our members for spraying glazes, as well as compressors to power the guns. As yet no one has tested and commented on the remarkably inexpensive air brushes at harbor freight.

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ebay is a great alternative for many tools and the equipment used in the ceramics studio - kilns, wheels, extruders, slab rollers are often listed there both new and used.

Tips for Members

If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. In the upper right corner of the lists for both types of posting, you will find an "+Add " button. Clicking it will open an editor where you create your posting. 4/16/2014

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