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Glossary

Word of the Day!

crazing


A network of cracks which sometimes forms in ceramic glazes; crackle. It may be desirable or not, depending on the artist's wishes. It is caused by the glaze and clay body contracting at different rates as they cool after firing. A similar pattern in the surface of oil paints is known as crackle instead of crazing. Crackle in oil paintings is less likely when the painter follows the rule of fat over lean -- when oil colors will be applied in layers (coats), the first layer should be leanest (least oil) followed by layers with progressively more fat (more oil.) Following this principle results in a work less likely to crack in aging. Similarly, in order to encourage crazing, later coats should have less oil than earlier ones. Desirable in crackle glazes, but not for functional earthenware.


kaolin

a pure clay, sometimes called china clay, used in white clay bodies such as porcelain. It is used as a source of silicon

kelvin

A unit of absolute temperature often used in photography to measure the color temperature of a source of light. Abbreviated K, kelvins can be converted to degrees Celsius by subtracting 273. Certain tungsten lamps are designed to burn at specific absolute temperatures (usually 3200 or 3400 K), guaranteeing that compatible photographic films will render the color they illuminate quite accurately.

key

A small interlocking device in the seam of a mold, enabling the mold to be precisely reassembled. The term may also refer to the slight roughening of a surface which allows a painted finish to adhere effectively. Also, it's a name given to wedges for canvas stretchers. And in architecture, the keystone at the top of an arch.

kg

Abbreviation for kilogram.

kickwheel

A potter's wheel which is driven by kicking a revolving cement disk. The major alternative is a wheel driven by an electric motor.

kiln

An special oven or furnace that can reach very high temperatures and is used to bake, or fire clay. Kilns may be electric, gas, or wood-fired. (pr. kiln or kill)

kiln wash

A refractory mixture, usually kaolin or flint, which is mixed with water and painted on kiln shelves to prevent glaze from adhering.

See Also:  dry foot

kilogram

A unit of weight measurement equal to 1000 grams. To convert kilograms into pounds (US), multiply them by 2.20462. Abbreviated kg.

kinetic

Expressing movement. In art, kinetic refers to sculpture that moves, such as a mobile or stabile. (pr. ki-ne'tick)

kinetic art

Artwork that includes movement, either mechanical or random. The Constructivists were the first to create kinetic art in the early 20th century, and Alexander Calder worked almost exclusively to make kinetic sculptures.

Example: Alexander Calder's Lobster Trap and Fish Tail, 1939

kitsch

Mass-produced or manufactured art that imitate or make fun of standard aesthetics.

Example: Jeff Koon's Puppy, 1992

kouros

Greek for "young man", kouros figures refer to archaic Greek statuary that are life-size, freestanding figures meant for tomb decoration.

Example: Kouros, from Attica, Greece, c. 600 B.C.

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Latest Product Reviews

I bought the butterfly set as a gift for my niece. She loved it! Colors are highly concentrated and water-soluble. The resist on the paper helps her stay in the lines as well as lay down a wash over a large area without losing the tiny linear details in the wings. Highly recommend!
- Judy W. in Houston, TX
I love the idea behind this product. I use the Redi-Lead to do a stained glass effect on bottles. I would give the product more stars if it had a better adhesive. I have had to resort to using a glue for glass to keep it adhering to the curve of even large bottles, and when making curved shapes; like leaves.
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