In general terms, varnish is a special solution made of solids and diluted in the solvent. For example, bitumen varnish is a bitumen dissolved in gasoline. The main property of varnish is its splendor after drying. The function of this brilliant film is insulation and protection of wood. The first layer of varnish is advisable to apply with a hard brush, then the irregularities of the color are not so noticeable.
