Matte Glaze
A glaze that is not glossy. Of course, unmelted glazes will not be glossy, but to be a true matte a glaze must be melted and still not glossy. To be a functional matte it must also resist cultery marking and clean well. The mechanism of typical matte glazes is a micro crystalline surface (high CaO glazes, for example, form crystals when cooling) or a wavy (non flat) surface that scatters light (high Al2O3 is the classic way to produce this effect, the alumina stiffens the melt preventing level-out). High temperature talc and dolomite glazes also create this effect because the MgO creates multiple phases in the melt that have different fluidity and refractive indexes). The latter is sometimes called a 'silky matte' and is more pleasant to the touch. At middle and low temperatures matte glazes are more difficult to formulate than gloss glazes, there is often a narrow window of chemistries (and particular firing methods are sometimes needed). Some materials act as matting agents and can work in both of the above ways. They may stiffen the glaze melt and prevent it from leveling completely during cooling (e.g. alumina or magnesium carbonate or even calcium carbonate at lower temperatures can do this). Other materials, especially those with high melting temperatures, can seed crystals (giving them a place to start). A good example is the formation of a calcium silicate matte with the addition of wollastonite (calcium silicate). Zircon materials and tin are other examples. Other materials will crystallize well if oversupplied (e.g. ZnO). Out Bound Links
- (Library)
Creating a Matte Glaze
This chapter in the book (and matching video at di... - (Glossary)
Cutlery Marking
In glazes with this fault rubbing a metal knife or... - (Materials)
Dolomite - CaCO3.MgCO3 or CaMg(CO3)2 - Double carbonate of magnesia/calcia
Calcium Magnesium Carbonate, Raw Limestone
- (Materials)
Wollastonite - CaSiO3 - Calcium Silicate
Wolastonite
- (Materials)
Zinc Oxide - ZnO - Pure Source Of Zinc
ZnO, Zincite
- (Materials)
Light Magnesium Carbonate - Mg5(CO3)4(OH)2.4H2O
Hydrated Magnesium Carbonate Mineral, Hydromagnesite, Magnesium Carbonate Light
In Bound Links
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- Login to a private account or work with others in a group account (e.g. university).
- Nothing to install (access it using your web browser). It is always the latest version.
- Easy to import your existing data.
- As many side-by-side recipes as you want.
- Many ways to search and classify glaze and body recipes.
- Glaze and body recipes are robust, with units-of-measure, unlimited pictures with individual titles and descriptions.
- Add variations to a recipe; each with its own pictures, descriptions and name/code-number extensions.
- Recipes can link to typecodes, projects and firing schedules (all managed in their own areas).
- Standard reports and mix ticket reports with last-minute-totalling; variations report as if they are a complete recipe.
- Video tutorials, help system, contact form on every page, dedicated messaging and support ticket systems.
- It is an industrial-strength database system (unlimited capacity, fast, reliable, scalable).
Imports many file formats
- Glaze recipe formats supported: HyperGlaze, GlazeGhem, GlazeMaster, Matrix, INSIGHT XML recipes (single and multiple), INSIGHT SQLite DB files.
- Assign a batch number to imports, and later search by batch.
- Assign multiple typecodes to imported glaze and body batches (to classify) and search on these later.
- Prepend character sequences to glaze recipe names during import.
- Import the pictures and pair them to their corresponding records automatically.
- One click to automatically export the database to an SQLite DB database file and download it (for use with desktop INSIGHT or just as a backup).
- Export and import individual glaze recipes as text or XML.
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