> > > >

1952 Theatre Catalog, 10th Edition, Page 233 (199)

1952 Theatre Catalog, 10th Edition
1952 Theatre Catalog
1952 Theatre Catalog, 10th Edition, Page 233
Page 233

1952 Theatre Catalog, 10th Edition, Page 233

Extruded aluminum rails or seasoned wood, coated with aluminum paint, can be used to form protective guard rails that are easily seen in dim light. An additional strip of aluminum paint on the margins of driveways is an extra safety measure.

The attraction signs effectiveness can be enhanced by the high reilectivity of aluminum. Lettering made of aluminum is practical for the permanent parts of the sign.

As far as confection stands are concerned, aluminum can be used to advantage both inside and out. Aluminum roof, outer walls, ceiling panels, and the insulation they afford, protect perishable foodstuffs and beverages from excessive heat. And here, again, the redective qualities of aluminum offer a cheerful, well-lighted atmosphere with 'a relatively low output of electrical power.


As noted throughout, one of the advantages of aluminum is that it does not require paint. However, if it is to be used to surface the screen area, it will have to be painted. Moreover, it may be desirable to paint aluminum sheeting used elsewhere to create a particular color scheme or to conform to an existing one.

There is just one problem in painting aluminumsmaking the paint stick. However, this problem is not exclusive with aluminum because the same considerations are encountered in painting most metals. The difficulty in making paint stick to aluminum comes from the basic fact that metals have no open pores to mechanically key or lock the paint coating to the surface of the metal. That means the paint must adhere to a smooth surface.

There are several things that can be done to make the paint stick to aluminum: First, the surface must be perfectly clean, mechanically and chemically, so that the paint can get a chance to adhere to the metal itself.

Second, the surface of the aluminum can be treated in such a way as to etch it slightly to enable the paint to get a grip on the metal.

Third,'the first coat of paint can be selected for its adhering qualities. Some paints stick better to aluminum than others.

Right here it should be emphasized that it is not difficult to make paint stick to aluminum if even the most fundamental consideration is given to the three requirements mentioned above. Most important of the three is cleaning. No paint can be expected to stick when it is separated from the metal surface by a film of oil or dirt.

The second factor, treatment of the aluminum surface, is not so important where a suitable paint is applied over a clean surface. However, it is always recommended where the best possible paint job is desired.

The aluminum shooting manufacturer can obtain proper cloaning on a high

Data and illustrations for this article have been drawn from "How To Apply Reynolds Lifetime

Aluminum Roofing and Siding," a publication .of the Reynolds Metals Company. Additional material was supplied by (l. W. Birdsall. editorial depart ment manager, Reynolds Metals Company.


THIS ATTRACTION BOARD will have a long life due (0 the generous use of aluminum in it.

production basis by passing the work through either a continuous conveyor type alkaline washer or a vapor type de-greaser. Then the aluminum surfaces can be treated by spraying or dipping, using a material that will apply an insoluble phosphate coating.

The drivesin owner who has an alumis num screen tower, confection stand or projection building has a different problem. He must have materials he can obtain readily in 'his locality in the comparatively small amounts he needs and at the time he needs them. He cant wait while the local supply house orders and obtains some special material. The following recommendations are made with this in mind.


First, wash down the aluminum thoroughly to remove dust and dirt. Next, oil and finger marks must be removed by washing the surface down with some degreasing agent, a large variety of which are available in stores. If none is available locally, plain naptha can be used. In this case, wash down the surface with liberal applications of naptha,

wipe off, and wash again. Wear rubber gloves and old clothing when performing this operation, as the alkaline content in many degreasing agents may attack the skin and clothing. Follow the manufacturer's directions as to application, rinsing, and drying.

Surface Treatment

For the best possible paint job, phosphatize the aluminum surfaces by the application of a phosphoric acid solution especially prepared for that purpose. Application is ordinarily accomplished by brushing or wiping on with a paint brush, cloth, or sponge. The solution is left on for a period specified by the manufacturer, then it must be rinsed off immediately with clear water, and the surface is wiped dry with clean cloths.

Phosphoric acid solutions designed for use in preparing aluminum surfaces for painting can be purchased in quantities as small as one gallon or one quart, usually from local paint supply houses or retail paint stores. If none of these is available, buy from your local druggist and mix the following: 40 per cent by volume butyl alcohol, 30 per cent isopropyl alcohol, 20 per cent water, 10 per cent of 85 per cent strength phosphoric acid. Rinse off this solution as soon as etching becomes visible.


The aluminum should be primed immediately after surface preparation. One of the most effective primers for aluminum is zinc chromate. However, its bright yellow color is diiiicult to hide with aisingle finish coat, so a light colored primer may be preferred for tWO coat systems. Where three coats (primer and two finish coats) are to be applied, zinc chromate primer is highly recommended.

ALUMINUM WAS EMPLO-YED in this screen lower as a decorative trim in the lengthwise panels and on the extenor of the ticket booth as well. Aluminum's immunity to rust requires no maintenance.

1 99'
1952 Theatre Catalog, 10th Edition, Page 233