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Sturgeon glue, prepared from the inner membrane of the air bladder of the fish, has long been used by Russian conservators as a consolidant and adhesive. It has recently become more accessible to Western conservators. It has greater tack and lower viscosity than comparable mammalian products like gelatin and rabbit-skin glue. The consolidation of badly tented paint on a 16th-century panel painting is described. Translated and adapted sections from the standard text of Russian conservators illustrate current techniques in Russia.
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Petukhova et al. (1993) studied this question.
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