This section is from the book "A Treatise On Beverages or The Complete Practical Bottler", by Charles Herman Sulz. Also available from Amazon: A Treatise On Beverages.
1. In 48 ounces alcohol dissolve 2 ounces camphor, 4 ounces resin, 8 ounces sandarac.
2. An excellent varnish, which dries in a few seconds, and produces a colorless, smooth and shining ooat, is prepared, according to R. Kirstein, of Hamburg, as follows: sandarac 53, mastic 20, camphor 1, oil of lavender 8, Venice turpentine 4, ether 6, alcohol 40 parts by weight. The ingredients must be macerated for weeks, until everything is dissolved. It is therefore advisable, in order to have it in readiness, to prepare a sufficient quantity to last some time.
3. A white varnish or paint for painting labels upon glass, wood, or metal, is prepared in the following manner : Triturate 150 parts of best zinc white and 3 parts of finely powdered acetate of lead in a warm mortar with a little oil of turpentine, to a uniform mass of the consistence of lard; then add gradually, under constant stirring, 20 parts of boiling (not "boiled") linseed oil. Though the resulting mixture has a very dark color, this does not interfere with the uses of the varnish, as it will produce a perfectly white surface. Next, 90 parts of da mar varnish (made from one part of damar and 2 parts of oil of turpentine), 5 parts of castor oil, and lastly 20 parts of copaiba are added, the whole well mixed, and finally diluted with about 100 parts of oil of turpentine. The varnish is transferred to a cylindrical vessel, and set aside for about one week. During this time any coarse grains of zinc white will settle to the bottom. The supernatant liquid and a portion of the sediment (about three-fourths - all but the coarse portion) are poured off, and the varnish or paint is then ready for use.