Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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gum sandarac

A brittle resin obtained from the African sandarac tree, Tetraclinis articulata, in the form of yellowish, faintly aromatic, opaque tears and broken cylindrical pieces. It is soluble in alcohol. It is used in the manufacture of spirit varnishes, and, when dissolved in oil, to make cooked varnishes. It is also used in powdered form to clean vellum and to prepare it for writing purposes. Its most outstanding property is its hardness. Also called "gum juniper." See also: POUNCE (1) ; PUMICE . (233 )




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