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- Understanding Glaze Basics - Glazy
Glaze is essentially a specialized glass formula engineered to melt and fuse onto clay at certain temperatures It makes ceramic ware waterproof, more durable, and visually appealing Without glaze, many ceramic pieces would be prone to leakage, staining, or rapid wear
- Major Oxides in Glazes - Glazy
When you mix a glaze, you’re combining several powdered materials, each of which contributes certain oxides to the final melt These oxides determine how easily the glaze melts, how fluid or matte it becomes, and how it ultimately looks and behaves on your fired pieces
- Common Glaze Defects - Glazy
Here’s a test with a fixed glaze and variable body showing how the composition of the body can affect glaze fit The glaze is Pinnell Blue Celadon (a fairly low-expansion glaze that does not usually craze on porcelain bodies), while the porcelain is a typical high-fire body with Red Iron Oxide (RIO) successively added in 1% increments
- Glaze Safety and Health Warning - Glazy
The best way to avoid issues of glaze toxicity and leaching is to use a “liner” glaze A liner glaze is a clear or white glaze applied to all areas of food contact (for example the inside lip of bowls, cups, and plates)
- Ceramics Resources - Glazy
What is Glaze? Clay Glaze Types; Oxides in Glazes; Raw Materials; Analyses Formulas; Limit Formulas; Material Substitution; Firing; Temperature Heatwork; Common Glaze Defects; Glossary; References
- Welcome to Glazy - Glazy
Learn about glaze, materials ceramic chemistry Testing → Learn how to test recipes 100% Free Create a personalized account, make ceramic materials and recipes Bookmark review your favorites! User Supported Glazy’s server fees are paid for by donations by people like you! Learn Share
- Raw Materials - Glazy
When first stocking your glaze lab, it’s wise to think about how quickly you’ll use each type of material Some ingredients like silica and feldspar are used in almost every recipe, while others—like colorants—are only needed in small doses
- Glazy
See original recipe below (I converted it to proportions, and added 2% Bentonite to help with glaze suspension) Wood Ash: 50 Feldspar or Cornish stone: 60 Quartz: 40 Rogers also notes, "By reducing the silica content a small amount and increasing the wood ash accordingly, the glaze can be persuaded to melt at a lower temperature
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