Valuable Secrets concerning Arts and Trades:
or Approved Directions, from the best Artists, for the Various Methods...
Printed by Thomas Hubbard,
Norwich, 1795Chap. III. Secrets for the composition of Varnishes, &c.
IV. A varnish for iceing.
Concoct some turpentine with water, and white wine of brandy. When concocted, dissolve it in wine and oil of turpentine.
V. An excellent varnish.
Take what quantity you please of verdigrise, grind it with vinegar, put it in a piece of dough as you would an apple to make a dumpling. Bake it in an oven as bread; then cut open your dumpling, and get the verdigrise out of it. Mix it with wine, and use it. Lay over it a coat of four ounces of gum arabic; then polish as usual. You will find it will answer your expectatopm. and be a very fine varnish.
VI. Another, as good.
In a glass bottle, one pound of white mastich. Pour over what quantity of oil may be requisite tocover all the mastich. Place the bottle over the coals, or very hot ashes. The mastich will melt. Take the bottle off from the fire, and shake it well, to see that the whole be perfectly dissolved. This varnish is excessively good to lay over prints, statues, columns, wood, &c.
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