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Glaze Calculation | Glazy Help

The actual materials we use in the studio come from various natural sources and contain impurities and inconsistencies. For example, there are many types of Potash Feldspar, and each type has a different analysis. Even within types of Potash Feldspar, there may be different analyses for different batches of material at different times.

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Glossary of Ceramic Raw Materials - Lakeside Pottery

OXFORD FELDSPAR - Potash feldspar no longer mined. Substitute CUSTER or G-200. PEARL ASH; POTASSIUM CARBONATE - K2CO3 - HT alkaline potash flux, but soluble. Occasionally used as AT color modifier to soften effects of coloring oxides. PERLITE - porous expanded granular silica, useful in making insulating refractories.

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Peter's Pottery: Chun glaze - Blogger

Mar 10, 2009 · Potash Feldspar 34 Whiting 16 China Clay 9 Black Iron Oxide 10 Note... If you under fire a chun glaze, you will usually end up with a milky white; and if you over fire a chun glaze you will end up with a clear glaze that just shows the dark under glaze without giving you .

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Shino Recipes - clayarts.websitetoolbox

Kona F-4 Soda Feldspar 9.82 Edgar Plastic Kaolin 18.18 Om #4 Kentucky Ball Clay 13.82 Malcolm Davis is an amazing potter who has developed a number of carbon trap shinos. He does seminars which include his shinos. If anyone has attended one of his seminars and can share a few bits of Shino wisdom, I would love to read it.

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clear glaze recipe using potash feldspar - Clay and Glaze ...

Jun 27, 2013 · Hi all I am new to this forum so feeling newish. Would anyone like to share their recipe for a clear gloss glaze using potash and whiting? I used various percentages of these and had a bit of crazing. Should I add boron - google research suggest this as .

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Lasse Östman, potter. Crystal Glazes - stoneware

Potash feldspar LR Dolomite Zinc oxide: 65,88 16,16 17,96: This is a very simple glaze, only three ingredients. Easy to use and not at all difficult. It was one of my very first crystal glazes, but I use it still very often. You can´t expect too large crystals.

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Recipes | Glazy Help

A Leach 4321 glaze recipe with 40% Potash Feldspar is not similar to the same glaze recipe with 40% Soda Feldspar because the materials (and their parent materials) are different. A Leach 4321 glaze recipe with 39.5% Feldspar and a Leach 4321 glaze with 40% Feldspar are considered similar because the material amounts only vary by %1.

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glaze grade potash feldspar, glaze grade potash feldspar ...

Alibaba offers 88 glaze grade potash feldspar products. About 2% of these are Ceramics, 5% are Other Non-Metallic Mineral Deposit, and 9% are Other Non-Metallic Minerals & Products. A wide variety of glaze grade potash feldspar options are available to you, such as type, application, and material.

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Highwater Clays: Feldspar G200HP

Recently, Feldspar Corporation was purchased by IMERYS and they have decided to stop blending the two feldspars and will only offer G200 HP going forward. In anticipation of this, we have purchased a years supply of the original G200. We have also started stocking G200 HP and it is available now for testing in your clay and glaze recipes.

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Recipes - Faculty Personal Web Page Listings

These Glazes are listed for use by classes at Texas A&M-CC for testing purposes as starts for line blends and colorant tests. They are not warranted for any use.

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Understanding Glazes - Pottery Supplies – Big Ceramic ...

Understanding Glazes Glaze Recipes. Glaze recipes are typically expressed by listing each raw material and its % by weight. The percentages add up to 100 Usually colorants and sometimes other additives (such as bentonite for suspension) are not included in the , they are added on afterward.

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feldspar for cone 6 casting slip - intrigued by sanitaryware

I've read that Potash Feldspars are less viscous during melting albeit at higher firing temperatures. However, adding 2-4% Talc to an existing recipe using Potash Feldspar can bring the firing temp down 2-3 Cones. (Double Hmmmm - perhaps go with Custer Feldspar & Talc ?) Let's say using the above WBB sanitaryware recipe, which I want to make into

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Soda Feldspar - digitalfire

Soda Feldspar is generally a clean white mineral that sources sodium, alumina and silica along with some potassium and calcium. No actual materials have the ideal formula shown here, they all have some K 2 O and small amounts of other contaminants. Manufacturers refer to their materials as 'soda' if Na 2 O predominates over K 2 O (often manufacturers refer to their materials at soda-potash ...

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Ash Glazes – Derek Philip Au

Mar 19, 2015 · For the potash feldspar/synthetic wood ash mixes above, I reduced the amount of iron and manganese (1/3 of original recipe) as well as added silica to reduce crazing. With 10% Silica we've eliminated the crazing. Potash 55%, Silica 5%, Synthetic Wood Ash 40%. Orton Cone 12 Reduction; Potash 50%, Silica 10%, Synthetic Wood Ash 40%.

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33 tried & true glaze recipes - WordPress

help you decide whether or not a given recipe is formulated to suit your work and firing methods. Taken together, these references will illuminate the recipes in this book beyond the images, as well as other recipes not included here. You will be able not only to assess the glazes in terms of their suitability for your studio and your work, but

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Cone 9-10 Glaze Tests - William Jeffrey Jones in the Third ...

Recipe: Potash feldspar 42.60 Flint 29.70 Whiting 19.80 Talc 5.00 Kaolin 2.00 Gerstley borate 1.00 Red iron oxide 1.00 Comments: >Does anyone have a reliable recipe for a Chun Blue or other Blue that does well in reduction over an iron rich claybody. ..... Anne Worner Yes! I have been using this glaze for some years - it originated with

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Technical: 10 Glaze recipes to test – voidsandapertures

Sep 15, 2015 · Base glaze is: 40 Potash Feldspar, 20 Whiting, 25 China Clay 15 Flint. Recipe from The Hopeful Potter. Electric and oxidation. Cone 8 ***** Bee's crater glaze, cone 8 (like a green sponge texture) feldspar potash 50 china clay 25 whiting 25 vanadium pentoxide 5 silicon carbide 5 lithium carbonate 5 for colour a wee.

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Shino Recipes - clayarts.websitetoolbox

Kona F-4 Soda Feldspar 9.82 Edgar Plastic Kaolin 18.18 Om #4 Kentucky Ball Clay 13.82 Malcolm Davis is an amazing potter who has developed a number of carbon trap shinos. He does seminars which include his shinos. If anyone has attended one of his seminars and can share a few bits of Shino wisdom, I would love to read it.

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techno custer feldspar File - RON ROY

12 november 2013 Feldspar is an important material for potters, as we use it in both clay body and glaze recipes. Because of this widespread use, we need to have an accurate analysis of the materials in order to get the results

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Peter's Pottery: Iron red glaze recipes and Tenmoku for ...

Jun 24, 2011 · PTM Potash Feldspar 41 Ball Clay 13 Silica 13 Talc 10 Bone Ash 13 Red Iron Oxide 10 + Dolomite 11 + Lithium Carbonate 2 The glaze I know as PTM had its beginnings in a Mike Bailey and David Hewitt recipe that appears in the book, "Clay and Glazes" (edited by Emmanuel Cooper and Eileen Lewenstein). My potter friend, Peter W. had experimented with it a few years back.

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