How to paint permanent pictures

Chapter 13: PAINTING ON METAL

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About This Book

The work presents practical guidance for artists on selecting and using pigments, vehicles, supports, and varnishes to produce durable paintings. It explains simple and complex palettes, permanent foundations, preparation of wood and metal supports, and the properties of oils, tempera, watercolors, waxes and mediums. The author discusses common causes of deterioration—fading, darkening, cracking, peeling—and prescribes materials and techniques to prevent them, including labeling and sequence of application. Chapters cover specific problem pigments to avoid, varnishes and blooms, repainting, restoration and cleaning, and framing. Advice is technical but conveyed in plain language to help painters and collectors produce and preserve long-lasting work.

PAINTING ON METAL

ANY metal which has rigidity, such as Copper, Zinc and Aluminum, is good to paint on and is absolutely permanent. Aluminum is the lightest of all the metals and not very expensive. It is readily purchased in any size up to 30″ x 36″ and in any reasonable thickness. The bodies of nearly all good automobiles are made of Aluminum, and when the surface is properly prepared, it holds the paint perfectly and permanently. It can be bought with a so-called egg-shell finish, but it is always advisable, before painting, to rub it very thoroughly with coarse sandpaper or emery cloth. This produces very fine ridges, which hold the paint, and that is the only preparation that Aluminum needs for permanent painting. Copper, Brass, Tin-Plate and Zinc must all be prepared in the same manner by rubbing them very thoroughly with coarse sandpaper or emery cloth, and no further preparation is necessary.