The sealing or called Vernieren in Fachchargon, with transparent varnish has va purpose of protecting metals against oxidation.
In addition to musical instruments and brass, gold and silver parts are coated with protective varnish. What the viewer's eye generally does not see 90% of all precious metals for decorative purposes are transparent or tinted sealed what some brass to gold tone deceptively real, noble patina and some brand new silver candlesticks to the ancient touch of Altsilbers helps.
Vernieren is a true art. When working with transparent varnish, the workpiece must be painted in a train, therefore it is necessary to years of experience. In addition to the craft arts helps a sophisticated technology that the spray is really painted properly. Electrode in the spray gun to ensure that between the spray gun and spray grounded, an electromagnetic field is built up, so that the workpiece as it attracts the coating. Not only the quality increases by even the paint consumption is significantly reduced. Also the preparation of the workpieces is important. In order for the paint to adhere, it must be completely dry and free of grease, so a previous degreasing is necessary.