Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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Japan wax

A soft, yellowish WAX having adhesive properties. It is obtained from the berries of the Japanese sumac (Rhus verniciflua and other species of Rhus), and used in some leather dressings. It is not a true wax but a glyceride, and contains palmitin with free palmitic acid. It has a softening range of 50 to 56° C., but upon being solidified, is likely to have an erratically lower softening point for some time thereafter. (173 , 291 )

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