Accelerated Varnish Drying

Abstract

Abstract Varnish drying on wood at a temperature of 150 F, instead of the usual lower limit of 100 to 110 F, has been attained after experimentation and tests by the authors. This finish process retains the desirable factors of appearance, durability, economy, and speed. Varnish finishes at elevated temperatures are shown by tests to be superior to ordinary finishes in durability and resistance to marring. Samples made by this system have undergone accelerated weathering for several months without failure, indicating that those finishes that take advantage of the toughness and hardness resulting from the heat treatment of synthetic and some natural resins are superior to the ordinary run of long-oil varnish finishes. A feature of the system is that it makes feasible the conveyorization of varnish finishes as well as lacquer finishes.