Industrial and artistic technology of paint and varnish (1927)
Sabin, Alvah Horton · New York,: J. Wiley & Sons, Inc.; London,; Chapman & Hall, limited · leaf 484
he copal which they contain are too durable to be changed. Sandarac, on the contrary, which is the base of spirit-of-wine varnish, is affected l^y the sun and cannot long resist it when made into a varnish. This one often sees in the heat of summer, when the spirit-of-wine varnish on the interior… … This illustration represents a varnish-maker's furnace, date about 1778; from the thirteenth volume of the Oeconomische Encyclopedie. The fuel was charcoal. The resin was melted and the varnish made in the flask. The next book of importance was the "Painters' and Var- nishers' Guide," published in…
Paint · Varnish and varnishing
Internet Archive · University of Florida, George A. Smathers Libraries · Public domain (published before 1931). Free to use for anything.