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Glaze Project Art 250 Due by May 9th (Mid term critique) Note: When mixing glazes, take careful notes in your glaze book about everything you do. Wear a mask and gloves when mixing glazes. 1. Construct a set of tiles and a tile holder. Not too large and not too small. Make at least 12 tiles to go in the tile holder. Tiles should have texture on one area and an area of white slip (see example set). Also, tiles should not fit snug in the holder. Allow room for glaze on each side between the tile and the box wall. Label each tile with a number (scratch it in), and bisque fire the holder asap. 2. Wear a mask in the glaze mixing room. Using a recipe provided by instructor, mix 1000 grams of a base glaze. Be sure to run your glaze through a screen at least once. 3. Pour equal portions of the glaze into ten small containers of the same size (these will each be approximately 100g batches). 4. Select ten different additions of colorants that you could add to your base glaze batches (a list will be provided, some additions are single oxide and some are for two oxides). When adding an oxide to a glaze, 2% means 2 grams if you are using a 100 gram batch. This makes a total of 102g. After adding the colorant, run each batch through the screen again. 5.

Make sure your tiles are labeled with a number or letter before glazing them. When the glazes are mixed to a thin cream consistency, and additions are made, dip each tile about half way, for a count of three. Take careful notes of which glaze is on which tile.

6. Once the glaze has dried on each tile, dip one corner in the glaze again. 7. Make sure each tile is clearly labeled with a number and that you have a record of what is on each tile. 8. Immediately place your tiles on the shelf to be fired. 9. You should have two tiles left. You could try adding 25-40% magnesium carbonate, 30% dolomite for making a matt glaze, or 10% zircopax for an opaque glaze, or invent your own glaze additions with oxides or commercial stains (keep oxides and stains under 10%). Make more tiles if you want, and test more glazes. 10. Use one or more of your glazes on a finished piece!

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