Claytone

Description: Bentonite-based rheological additive

Notes

Claytone rheological additives are produced from carefully selected natural sodium bentonite. Claytone additives are "organically modified" clays that are produced by reacting organic cations, such as a quaternary ammonium chloride with a specially selected bentonite. The reaction changes the nature of the clay from hydrophilic to oleophilic. Claytone additives are used to provide various rheological characteristics to solvent-based or oil-based formulations. Claytone rheology modifiers are used for solvent-based and oil-based inks, paints, greases, oil well drilling fluids, consumer care products, sealants, and adhesives.

Related Information

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Oxide	Analysis	Formula

Typecodes	Clay Other Clays that are not kaolins, ball clays or bentonites. For example, stoneware clays are mixtures of all of the above plus quartz, feldspar, mica and other minerals. There are also many clays that have high plasticity like bentonite but are much different mineralogically.
Typecodes	Additives for Ceramic Glazes Materials that are added to glazes to impart physical working properties and usually burn away during firing. In industry all glazes, inks and engobes have additives, they are considered essential to control of cohesion, adhesion, suspension, dry hardness, surface leveling, rheology, speed-of-drying, etc. Among potters, it is common for glazes to have zero additives.
URLs	http://www.claytone.net/ claytone.net
Glossary	Rheology In ceramics, this term refers to the flow and gel properties of a glaze or body suspension (made from water and mineral powders, with possible additives, deflocculants, modifiers).
Materials	Bentonite Bentonite can make a clay body instantly plastic, only 2-3% can have a big effect. It also suspends slurries so they don't settle out and slows down drying.

By Tony Hansen
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