Glazing with Spotted Purple for Clay Buddies mini-NCECA John Britt 2020-03-28 | Here is a 30 minute video showing real world glazing of cups with spotted purple and chun seafoam glaze and then some theory and practice on Specific Gravity (various methods) , Glaze Viscosity (Zahn cup/ deflocculation and flocculation), Glaze Thickness on the cup (micrometer and ocular loop ), and other assorted fun stuff. #CBWW2020
Wild Clay #30 in Free Online Glaze Class John Britt 2023-01-09 | This is a 30 minute video talking about how to find Wild Clay, how to process it and how to make shrinkage/absorption bars to determine what to add to Wild Bodies. Get the book "Wild Clay"by Matt Levy, Hitomi Shibata, Takuro Shibata for a more thorough description of this fascinating process.
Practical Examples of Clay Bodies #29 in the Free on-line Glaze Course John Britt 2022-12-27 | This is a short discussion of actual clay body recipes where we try to incorporate what we have learned about the structure of a clay body : Clay , Flux and Filler, and application of the properties of clay bodies, like plasticity, texture, color, etc. So you can see how people design their clay body for throwing or sculpture, etc. Shrinkage bars and absorption bars.
Clay Bodies Free online Glaze Course #28 John Britt 2022-12-14 | Discussion of Clay Body structure: Clay, Flux and Filler.
Properties of Clay - Physical characteristics: Video #27 of the Free online glaze course John Britt 2022-12-08 | This is a 30 minute video about the physical properties of clay. This is a prelude to building your own clay body or finding clay in the environment (a.k.a. Wild Clay) and knowing what to do with it.
Types of Clay (Video #26 in the Free Online Glaze Course) John Britt 2022-03-27 | A video about types of 5 clay. Kaolin, Ball clay, Stoneware clay, Fire clay, Earthenware clay and Bentonite. Description and some general overview concepts.
Acquiring and Processing Ceramic Raw Materials (Video #25 in the Free Online Glaze Course) John Britt 2022-03-21 | This video is a discussion of acquiring raw materials, both natural and processed, and then how t0 do the simple processing of those so they can be used in glazes. Included discussion of the basic equipment needed as well as relevant books, and discussion of ash, feldspars, silica, limestone, and other materials.
Basic Overview of Ceramic Geology For Potters (Video #24 in the Free Online Glaze Course) John Britt 2022-03-14 | This short video is a Basic Overview of Ceramic Geology for Potters to show where our materials come from and ways to use that knowledge. It is part of my FREE ONLINE GLAZE COURSE which is on this channel. It is only a starting point for your exploration into geology and I hope it will inspire you to explore your local area to find materials or at least understand our materials better.
NC Clay Club Gold Shino #2 with Andy Palmers pieces (for the NC Clay Club Gold Shino Firing 2022) John Britt 2022-03-08 | I did a Gold Shino firing for the NC Clay Club and had about 15 folks sign up and these are some of the results.
NC Clay Club Golden Shino Video #1 John Britt 2022-03-08 | This short video is a discussion of some of the results of the NC Clay Club Gold Shino firing we did last week. Just highlighting some of the typical effects we got with the hopes of doing it again soon. Thanks to the Village Potters for hosting and videoing this presentation.
Combination Grid Over/Under -Part 2 (Video #22.1 in the Free Online Glaze Course) John Britt 2022-03-05 | This is a short video showing the possibilities of running an over/under grid to find new glaze combos in a quick systematic manner. This is a companion to the first video on Combination Grids.
Advantages and Disadvantages of UMF Unity Molecular Formula ( video 23 in FREE Online Glaze Course) John Britt 2022-01-28 | This is an in depth exploration of the advantages and disadvantages of the UMF (Unity Molecular Formula) in ceramic glazes, using melt flow tests, tiles and a color blend. Part of the FREE ONLINE GLAZE COURSE.**The final results of 10 variations all with the same UMF was that 2 were very close in melt and color response (#2 and #6). 4 were completely off in every way (# 4,5,10 and 11). In the drip test, #7,8 and 9 were good but color was off. Finally the test with Silica mesh size variation using amorphous silica was a nice promising glaze ...not exactly like the original but showing that using amorphous silica in other recipes could be a good idea.I mess up and forgot to put 26.33 grams of Frit 3124 in Recipe#5. You can see the recipes on my Glazy.org page: glazy.org/u/johnbritt/recipes
Combination Grid Test cone 6 ( video 22 in FREE Online Glaze Course) John Britt 2022-01-25 | Here is another installment in the FREE ONLINE GLAZE COURSE. This is a systematic testing method for getting combinations of glazes.
Concepts in Glaze Thickness and Application ( part 21 of Free Online Glaze Course) John Britt 2021-08-05 | This video is 21 in the Free Online Glaze Course on this Channel. (Self- directed) It covers Concepts in Glaze Thickness and Application. Determining glaze slop thickness in the bucket with specific gravity or just my eye. Then it covers viscosity using a Zahn Cup. This is shown by measuring viscosity of a water, a glaze, a deflocculated glaze and a flocculated glaze. Then the most important thing is how thick the glaze is on your pottery and that is determined several ways, a needle tool to check, a optical loop, or a micrometer. Finally getting the correct thickness can also be achieved by determining gram per square inch. So that is shown samples. Enjoy. Had a slight glitch toward the end and had to move the camera.
Understanding Slip in Ceramics (Free Online Glaze Class Pt. 20 ) John Britt 2021-06-14 | This is a video explaining the many types and names for "Slip" in ceramics. I will concentrate on the amounts of kaolin in recipes and show how, through a line blend you can go from a slip to a glaze.
Making a Three Part Press Mold John Britt 2021-03-26 | Longer video showing a step by step description of how to make a 3 piece press mold of a pear. @johnbrittpottery
Purple Spotted GlazeTests John Britt 2020-02-26 | Short video showing some tests with a purple ( lavender glaze ). Cone 6 and Cone 8 electric. I used Frost cone 6 porcelain and Frost cone 10 for the cone 8 pieces. Not sure what other clay bodies will do?
Properties of Ceramic oxides: Opacifiers and Colorants (Free Online Glaze Course Part 6) John Britt 2020-01-06 | This is the 6th video in the Free online Glaze Course. I describe the properties of opacifiers and colorants. (Forgot to mention that you can get lavender/pinks with cobalt and magnesium oxide in the base.)
Properties of Ceramic Oxides (Free online Glaze Course- Part 5) John Britt 2020-01-05 | Brief description of ceramic oxides, their properties and sources. Melting point, coefficient of expansion, surface tension, viscosity, volatilization, toxicity, color response, soluble and insoluble sources. Discussion of : Flux, Refractory and Glass-Former. Next video will be opacifiers, and colorants.(Made a mistake in here where I said in Potassium, the copper blue in reduction...I meant iron blue in reduction...trying to find the annotation insert for windows but having trouble.)
Understanding the Stull Chart (Free Online Glaze Class Pt. 4) John Britt 2019-12-04 | A short video showing principles of the Stull Chart used in Glazy.org and how to manipulate glazes. Using the 1:5 matte line and the 1:7.5 Best Gloss line to move your glaze from matte to glossy or glossy to matte as well as following the 1:7.5 line up the Best Gloss. A bit of phase diagrams, firing cone variation, effect of clay body, etc. (Part 4 in series)
Short description of Glaze Limits and Stull diagram (Free Online Glaze Class Pt. 3) John Britt 2019-11-19 | Short introduction of various ceramic glaze limits, brief overview of various glaze softwares and Stull diagram. This the the third video in the series.
Calculating a UMF formula from a batch recipe. (Free Online Glaze Class Pt. 2) John Britt 2019-11-13 | This is the 2nd video in a short series that tries to help potters understand what is necessary in order to use glaze software successfully. Forgot to mention that Boron isn't in Unity with the Fluxes so it is considered separately. The second video in this series.
Description of UMF (Unity Molecular Formula) Structure (Free Online Glaze Class Pt. 1 ) John Britt 2019-11-11 | This is part 1 of a short series showing how to use Glaze Software to discover things about glazes. This is an overview of the basic structure and some applications. This is the first video in this series.
Cone 6 Burgundy colorants in various glaze bases (Free Online Glaze Class Pt. 7) John Britt 2019-11-03 | This is a short video showing how glaze base can influence the colors achieved with 7.5% tin oxide and 0.2% chrome oxide. From yellow green, to grey, light lavender, burgundy, to pinks.
Copper in various cone 6 base glazes (Free Online Glaze Class Pt. 8) John Britt 2019-11-01 | This is a short video showing 3.5% copper carbonate in various cone 6 glaze bases fired in electric. It is in an effort to show the various tones of green you can get when you vary oxides in a base. each glaze has the same amount of copper carbonate and the variation is striking. (I forgot to talk about some glazes, namely Ravenscrag which is a great glaze...just forgot...also got the boron in PV liner mixed up with Milk Gloss but next time I will do better!)
Understanding the Triaxial Blend (Free Online Glaze Course Part 9 Practical lab work) John Britt 2019-10-13 | Here is a video showing how glazes are generated when you don't have the analysis of the material. For example, if you have mud from the creek or roadcut, unprocessed feldspar and wood ash. I also try to show how, from this test, how many glaze types can be can be generated.
Making Little Desk Monsters John Britt 2019-09-29 | Here is a short video showing how I make these little "freaks". Teeth are porcelain and the rest is whatever clay I have and I usually fire to cone 6 electric with crater or some other glaze. Have fun kids!
Glazing a Ewer and some test results John Britt 2019-09-29 | Here is a short video showing how I am testing a Laterite Terra Sig. and then glazing a ewer. Action packed Glazing Fun!
Making Drip Trays /Tapas trays/hors doeuvres trays John Britt 2019-09-22 | This is the first video since the "Occurrence at Bridge #14." Showing how to make drip trays which can also be nice hors d'oeuvres trays.
Brain Crawl glaze test and results John Britt 2019-05-17 | Got a glaze from Walter Ivan Heath and it has interesting possibilities. I call it Brain Crawl, not sure if that is the actual title. Then I ran a color blend and some variations on application. Hope it helps you to feel free to test glazes to get your own special glazes and effects. Glaze on !
Behrens Satin Matte (Method of Testing) John Britt 2019-05-13 | Here is a method of testing, focusing on Behrens glaze. Hopefully it is helpful to everyone. Should be self-explainatory. Claybody is Frost cone 6 and the other on the original test was Star White Stoneware cone 6. Also,I sieved the 1000 gram batch twice through an 80 mesh sieve.
Purple Spotted Glaze Tests John Britt 2019-04-01 | This video shows the results of an RO/R2O oxide line blend (vs and material line blend) and also shows two different firing and two different amount of Lithium carbonate. I was looking for a purple spotted /pink spotted blue glaze. Here is the #8 recipe:glazy.org/recipes/33392
Ian Currie Systematic Blend (Free Online Glaze Course Part 10 Practical lab work) John Britt 2018-12-23 | Here is a short video showing how to run an Ian Currie Blend on a glaze. I was only able to do this with the help of Melanie Risch and Jeff Dixon who helped me run the test! Thanks you both . BTW Ian Currie's book Stoneware Glazes is FREE online:wiki.glazy.org/t/ian-curries-stoneware-glazes/367
How to run a Volumetric Line Blend for Pottery Glazes (Free Online Glaze Course Part 11 Lab) John Britt 2018-11-21 | A short simple tutorial on how to run line blend to find colors in pottery glazes.
Volumetric Color Blending (Part 2) (Free Online Glaze Course Part 13 Lab) John Britt 2018-10-29 | ...
Volumetric Color Blend Glaze Test (Part 1) (Free Online Glaze Course Part 12 Lab) John Britt 2018-10-29 | This is a brief video showing potters how to run a volumetric color blend for glazes.
Gold Shino (a.k.a. iron gold and iridescent glazes) John Britt 2018-10-23 | Short video showing the most recent results of a shino firing as a preview of a workshop at Adamah Studio / Bethel Horizons in Dodgeville WI, November 24 - Dec 1 , 2018. All in PDF on my websitejohnbrittpottery.com/shop/gold-shino-experiments-in-iron-gold-and-iridescent-glazes
Multi-sectional Ewers John Britt 2018-10-13 | Short video showing how to throw various parts on a potters wheel and then assemble them into a small ewer for soy sauce, or cream or other liquids.
Fundamentals of Glazing -The Basics (New HD Video) John Britt 2017-04-05 | This is a promo for my New HD Video on Basic Glaze Application.
Making Pedestal Rings for Crystalline Pots John Britt 2017-03-02 | Here is a short video showing how to trim and and then make pedestal rings that easily fit your pots for crystalline firings.
Drip Trays for Crystalling Workshop John Britt 2017-01-20 | This is a short video explaining how to make various drip trays for our upcoming crystalline workshop.
Gold Shino Test Series John Britt 2017-01-04 | This is a short video documenting a series of tests I did to achieve and refine an iron gold glaze and firing cycle. I will write this up into an article.
Real World Oil Spot Glazing Cups Part 4 John Britt 2016-09-28 | Temmoku Cover on the outside of cups.
Real World Glazing - Oil Spot Bowls Part 2 John Britt 2016-09-28 | Second video on glazing oil spots. Outside of bowls.
