Resins and Varnishes: - Joseph Bellofatto

Some of the earliest recipes for varnish were for Venetian varnish, used to varnish and paint engravings. De La Fontaine's recipe for Venetian Varnish, which was used to coat paintings, mixed 1 oz. of Venetian Turpentine with 1/2 oz. of spirits of Turpentine and boiled in a water bath until the balsam melted. ................
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