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Home › Spirit Varnishes › Copal Varnish (Take ounces copal melt)
Copal Varnish (Take ounces copal melt)
Take 3 ounces copal, melt by a gentle heat, and drop it into water (see No. 2904); then dry it and powder it fine. Place a bottle containing 1 pint oil of turpentine in a water-bath, and add the powdered copal to the turpentine in small portions at a time; in a few days decant the ounce; dissolve and strain. Very white, clear. Dries slowly, but is very pale and drying, and capable of being polished when durable, and is used for pictures, &c. In hard. Used for toys. making this varnish, it frequently happens