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Item 1280 of 2719

Vintage orange / red glazed earthenware ashtray from the 60's - 70s, made of chamotte clay

SKU: 1351

Vintage orange / red glazed earthenware ashtray from the 60's - 70s, made of chamotte clay

Description
This brightly colored vintage 60s - 70s ashtray is made of dark brown chamotte clay. This robust ashtray is glazed on the inside in a beautiful bright red/orange flamed lava color. A lovely eye-catcher for on the table in a retro interior.

Sturdy and fairly heavy ashtray.

Condition
This 60s / 70s ashtray is in a neat vintage condition without damage.

Size

  • Height: 3.5 cm.
  • Length: 16 cm.
  • Width: 10 cm.

Grog, also known as firesand or chamotte, is a ceramic raw material. It has a high percentage of silica and alumina. It can be produced by firing selected fire clays to a high temperature before grinding and screening to specific particle sizes. It can also be produced from pitchers. The particle size distribution is generally coarser in size than the other raw materials used to prepare clay bodies. It tends to be porous and have low density.

Grog is used in pottery and sculpture to add a gritty, rustic texture called "tooth"; it also reduces shrinkage and aids even drying. This prevents defects such as cracking, crow feet patterning, and lamination. The coarse particles open the green clay body to allow gases to escape. It also adds structural strength to hand-built and thrown pottery during shaping although it can diminish fired strength.


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