Manu Propria Pens - Bamboo and Oyster Shell

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manupropria

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Nov 2, 2014
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Bern, Switzerland
A Pen made from a piece of natural Bamboo, lacquered with transpaarent "Sukurome Urushi" Lacquer.
The nodes at the ends filled with glowing material. The maaterial made from Oyster Shell Powder and Acrylic.

Here the "Ancient" recipt on Glowing Oyster Shell

Luminous Enamel
Five parts of the ordinary luminous powder prepared from oyster-shells as previously directed; ten of fluor-spar, cryolite, or other similar fluoride; one of barium borate; powdered, mixed, made into a cream with water, painted on the glass or stone article, dried, and fired in the usual way for enamels. If the article contains an oxide of iron, lead, or other metal, it must be first glazed with ground felspar, silica, lime phosphate, or clay, to keep the sulphur of the sulphide from combining with the metal. The result is an enameled luminous article.

Phosphorescent Paint
Luminous paints require direct sunlight for some time, and the phosphorescence they display in the dark only lasts for a few hours. Luminous paints are usually made by heating oyster shells in the fire until they become white, and then placing them in a crucible with sulphur and melting. Another method is to mix thoroughly 100 parts chalk and 40 parts flowers of sulphur, and heat in a closed crucible until fumes cease to be evolved. Powder the residue of calcium sulphide, mix with the smallest possible quantity of gum water or glue size, and use it as a paint; it is said to be not so good if mixed with boiled oil or varnish. Luminous paints can also be made by using strontium carbonate in place of chalk.
 

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