A Practical Treatise on the Fabrication of Volatile and Fat Varnishes, Lacquers, Siccatives, and Sealing-Waxes (Classic Reprint)

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Excerpt from A Practical Treatise on the Fabrication of Volatile and Fat Varnishes, Lacquers, Siccatives, and Sealing-WaxesWe cannot draw a sharp line of distinction between varnishes and lacquers. By varnishes we generally understand certain fat oils which, by proper chemical treatment, have acquired the property of hardening in a short time to a transparent mass when they are exposed to the air in thin layers. The term lacquer is generally given to solutions of different kinds of gum or resin, dissolved in proper solvents, and when these become hard when exposed to the air, the dis solved resin is either held inclosed by the solvents or the latter simply evaporate and leave the dissolved substance behind.As the first group of lacquers is prepared with fat oils, they are called fat or oil varnishes. The oil varnishes are without doubt the most valuable pro ducts of our branch of industry, because, besides possessing considerable hardness and bright lustre, they are more durable and possess a greater power of resistance than other kinds of lacquers or var nishes.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.