High firing produces the most vitreous and durable ceramic work and many potters and ceramic artists choose to high fire for this very reason. And most artists who fire to this range mix their own glazes. Fortunately, many of them readily share their high fire glaze recipes with other potters and ceramic artists. Although a lot of potters are reducing their firing temperatures these days, high-fired pottery is still going strong.
Many contemporary potters are still creating traditional glaze surfaces with celadon glazesoil spot glazes, and others. Looking for reliable stoneware glaze recipes? We have everything from traditional Chun glaze recipes to ash glaze recipes that make use of ash right out of your fireplace!
Is porcelain more your thing? We have that covered too. In addition to high fire glaze recipes, the artists share their techniques and advice for getting the most out of their high fire glaze formulas. So peruse through these pages and start experimenting with high fire glazes!
Ceramic artists in this day and age have it relatively easy when it comes to obtaining materials for their craft. Mark Issenberg shares some ceramic glaze recipes that utilize fireplace wood ash to create an ash glaze surface. The late Sandy Vitarelli spent most of her life on tropical islands in the pacific and her pottery reflects that. Sometimes bigger is better. Remember Me This setting should only be used on your home or work computer. High Fire Glaze Recipes.
RSS Feed. Turn up the Heat! Enter Your Log In Credentials.You can make a full rainbow of pottery glazes for your projects. Low-fire temperatures allow the use of colorants that would burn off or become unstable at higher temperatures. The percentages given in these recipes are by weight, not by volume.
Your glaze batches should be mixed using distilled water. Whenever you are trying out a new glaze, make small batches and test them. Note that this glaze does not add up to percent. Rather, it is using the old "parts" system where parts, or portions, are of equal weight.
Gerstley borate 30 If using a G. Curdle Blue, Cone Use caution, as these are poisonous raw materials.
Gerstley borate 50 Borax 50 Optional: 0. Cone 07 Cobalt Purple Use caution, as these are poisonous raw materials.
Soda ash Colemanite Liner, Cone 06 Feldspar Continue to 5 of 15 below. Cone 06 Clear Use caution, as these are poisonous raw materials. Soda ash 30 Lithium carbonate 9 Kaolin 22 Silica oxide Cone 05 Base Gerstley borate 65 Kaolin 15 Silica oxide 20 For blue against brown patterning, add 4 percent rutile, 1 percent cobalt oxide For bright green against light brown, add 6 percent rutile, 1 percent copper carbonate.
Cone 05 Matte Gerstley borate Continue to 9 of 15 below. Lithium carbonate Cone 04 Iron Black Use caution, as these are poisonous raw materials. Nepheline syenite Cone 04 Marked Glaze Volcanic ash Continue to 13 of 15 below. Cone 04 Patterned Caution: Poisonous raw materials. Gerstley borate Barium carbonate 5.
Cone 04 Clear Caution: Poisonous raw materials. Nepheline syenite 75 Lithium carbonate 25 Optional: add 2 percent bentonite. Read More.I am quite happy with the glazes I use. Of course, if you know any artist, anything we might be happy with tends to change quite frequently and dramatically.
But for now these glazes are very satisfactory to me and their visual quality seems long-lived. Just so smitten with your work. I want all of those. Look forward to seeing your work again someday. Hey Phil, we had a batch of American Shino that I was told needed to be remixed. I gave it a go anyways and I really liked the results. Rather than coming out so orange, it was mostly a creamy white with slight orange breaks on the edges, pinholes, and it crazed.
On some of the pieces, it carbon trapped quite nicely. Do you know what would have caused this so I can use it to my advantage again? Too thick, substituting ingredients? Hey Chris! I am glad you like American Shino! It sounds like you applied the glaze quite thick, which would give it that creamy white color. As for the carbon trapping, generally that is helped along with soda ash.
Thanks for sharing your recipes! My experience since I started throwing pottery a bit over a year ago has been mainly cone 6 stoneware, but I was recently offered the opportunity to help with an anagama firing and include some pieces.
I came across your American Shino recipe in my search for cone 10 glazes and mixed up a batch to try on a few porcelain pieces. Hello Jay, Thanks for saying hi! I am glad you happened upon the American Shino recipe! I hope the results are as favorable as they have been for me! I would love to see the results when they are finished, so please respond back if you have time!
My apologies for not responding back much sooner. They were all porcelain and I dipped it on relatively thick.Share from Insight-live. See Also: Zero3 Ulexite-based glaze, engobe and firing schedule. If you are doing low temperature earthen ware, especially for functional pottery, then start with a good transparent base clear recipe.
Read about all of these and choose. A good base clear for low temperature ceramics is vital for success. It can become the base of all of your coloured glazes. And a kiln firing situation where you can do lots of testing is important. After all, if you can do a firing in 3 hours, it is much more practical to do testing.
High Fire Glazes
At low fire, boron is the king of fluxes. And frits are the key sources not a single commercial glaze manufacturer uses Gerstley Borate to source boron, yet many potters still do. What is the perfect combination of Ferro frits to create a super clear glossy glaze for low fire?
There are an infinite number. But that number is drastically reduced when we eliminate those of too-high and too-low thermal-expansion-adjustable. And those that are not durable and resistant to leaching.
And those that are not compatible with stains we need. And those that do not heal blisters and pinholes well.Raw glazing for once firing, cone 10 tips, thoughts - June 27 with Simon Leach
Potters coming to low fire from higher temperatures expect fired strength, that is just not there at cone But terra cotta bodies fired at cone are dramatically better. GK is intended for exactly this at cone 04 and lower it loses clarity and the surface is not as smooth.
G, on the other hand, melts well at lower temperatures. Good low fire glaze can be applied in a much thinner layer than at higher temperatures and yet still look full bodied. A thinner layer will also produce a more crystal-clear product.All Glossary.
My Favorite Glaze Recipes
Do not get addicted to the trafficking in online glaze recipes. Learn how they work. Understand them. Details We have included this page to warn you about recipes that you find online. Be careful about wasting your time. And money. Do not think you will find a magic solution to all your dreams! What you will more likely find is alot of frustration and a stock of useless materials. Better to have a few recipes you understand and can control than 50 renegades that put you through hell to use and keep consistent or just work sometimes.
Recipes are trafficked, often just taking space on pages. People pass them around without a thought. Or any knowledge of them.
Having no documentation. The actual recipe is only one part of the puzzle to create functional and aesthetic ware. Recipes have advantages and disadvantages. Specific visual effects often come glazes that are very difficult to use and teeter on the edge of all sorts of precipices e.
Procedures are often specific to recipes. Recipes often have mechanisms e. People fail to document these! But published recipes are often, very often, simply wrong. They are nonsensical, have wildly crazy chemistries, use dangerous or difficult materials, fire to leach-prone surfaces, craze badly on any body, cutlery mark or stain easily. Understanding glazes is better.By tanviMarch 22, in Clay and Glaze Chemistry.
I am looking for a pink glaze recipe that fires at cone and stays bright. So far everything ive seen on the market fades at that cone temperature. And the recipes I found online are not quite bright. I know using chrome tin makes a glaze pink. Anyone has a recipe to achieve the attached color at high fire?
Base has to have a high amount of calcium to develop the pink colour. Mason stains and Crimson and Alpine Rose both hold up at cone 6.
Clay and Glaze Chemistry Search In. Reply to this topic Start new topic. Recommended Posts. Report post. Posted March 22, Share this post Link to post Share on other sites. Somewhere to start. Posted March 23, Posted March 24, Also know that chrome can fume in the kiln, creating local color changes to nearby pieces.
Join the conversation You can post now and register later.Recipes are combinations of one or more ceramic materials. Recipes specify the proportion of one material to another. When mixed together, the recipe's materials form a new type of material- a clay suitable for throwing, a beautiful, shiny glaze, or a colorful underglaze.
The recipe below is a classic recipe called "Leach ". Leach is often used as an example because its recipe is very simple and it works well:.
Low-Fire Glaze Recipes
Because the recipe lists the proportion of ingredients, you can think of the amounts as percentages. Leach is a recipe made up of:. It is not unusual to see recipes that do not total to For example, Leach can also be written as:.
It's important to realize that this is the same recipe as listed abovejust multiplied by and specifying a unit of measurement. Potters often write down recipes in batch sizes that they work with to make mixing glazes easier. A batch size of 10,g like the one above is often used when making up a large bucket of glaze or clay. Because recipes list proportions of ingredients, no units of measurement are used.
To make this recipe, you can measure in ounces or grams, even kilograms or tons! For convenience ceramicists usually stick to the Metric System. Batches of recipes are measured in grams and kilograms. Small test batches are usually only or grams, while batches for daily studio use can be 10 or 20 kilograms. More information about mixing up batches: Mixing Test Recipes. Underneath each recipe listing is a Calculate Batch input box.
After entering a number into this box, Glazy will calculate the total amount for each ingredient. Recipes are often divided into two sections: the base recipe and additional ingredients. Imagine a recipe for pizza. The base recipe would include the ingredients for making the dough and sauce, while toppings like mushrooms and sausage would be listed as additional ingredients.
For glaze recipes, the base recipe is usually a plain glaze without any color. Additional ingredients like colorants and opacifiers can be added to change the look and character of the original base recipe. Notice that the name of this recipe has changed.
Also notice that when calculating a batchadditional ingredients are added in addition to the batch amount. The batch amount is actually the base batch amount.
So the total batch amount for this batch isnot