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1950-51 Theatre Catalog, 9th Edition, Page 416 (394)

1950-51 Theatre Catalog, 9th Edition
1950-51 Theatre Catalog
1950-51 Theatre Catalog, 9th Edition, Page 416
Page 416

1950-51 Theatre Catalog, 9th Edition, Page 416

THE 1940 FORMULA shows a great advancement in durability, as shown by the cedar and yellow pine tests (top picture) after four years' exposure in Chicago. it in only through research continuing over the years, with thorough tests on all combinations and permutations ot paint ingredients. that ine products can he developed ultimately to achieve the combination 0! great beauty and long lilo.

THE 1942 FORMULA is shown in the middle picture, after three years' exposure in Chicago. The 1943 formula. alter a like exposure, is shown in the bottom photograph.' All pictures in the series show the sample on cedar at the left and on yellow pine at the right, and all are shown here at a magnification oi x2. It is to be expected similar investigations will be continued. (All Sherwin-Williams photographs.)

Burningris dangerous and is not to be recommended. Use of sand paper and paint remover is desirable only for small areas, such as furniture or other fine finish work.

In the burning and scraping process, the old paint is softened with an electrically-heated tool or gasoline blow torch. Hold the torch in one hand to blister the surface. While the paint is still soft and hot, remove it immediately with the scraper which you hold in the other hand. Do not burn with a yellow Iiame. Use a blue flame close to the wood. Move back and forth slowly. For safetyls sake, have a fire extinguisher handy.

Where old paint is rather thick, as under eaves and at other places not reached by the sun, rain and dew, future trouble may be avoided by its complete removal, or at least by cutting it down with sandpaper. This treatment also improves the adhesion of the new coat of paint.

Resinous knots should receive special attention. The resin should be scraped off and the traces mopped off with paint thinner. The knots should then be given two coats of shellac.

Many hinges, screws, nuts, bolts, and other metal Work will have rusted more or less during the period of neglect. Loose paint, rust, and scale should be removed with a wire brush or scraper. As soon as possible after the removal of the rust, an anti-rust primer should be applied. Holes over the counter-sunk nails should be filled with putty.

When painting, do not neglect shutters and fences. It is the careful attention to accessories that marks the wellpainted property.

In damp, shady places, mildew should be destroyed and the surfaces sterilized by scrubbing with a good paint cleaner. It may be desirable to employ a relatively strong solution in order to remove the outer layer of paint in which the mildew is embedded. After the surface has been rinsed and dried, it is ready for the new coats of paint. In order to prevent a future infestation of mildew, a fungicide should be added to the paint.

Excessive relative humidity caused by ground moisture, living conditions, or lack of ventilation should be corrected. Any informed builder or competent insulation authority can make suitable recommendations.

Before repainting interiors, films of grease and vapors should be washed off with paint cleaner. Otherwise poor adhesion of the paint will result. If any of the old paint is loose, it should be scraped off and the bare spots should be leveled with a spackling, or patching, compound. This material may also be used to fill cracks in old paint or plaster. Large areas of loose plaster should be removed and the holes filled with patching plaster. Plaster that has been completely wet should be replaced. New plaster should receive an extra coat of primer before the main job is started.

Cement and plaster surfaces may be prepared for the application of oil paints by preliminary treatment with zinc sulphate in the proportion of 8 ounces to 1 gallon of water. There are, however, available paints requiring no preliminary treatment of the surface.

To fill the pores of unusually absorbent surfaces in preparation for painting,

1950-51 Theatre Catalog, 9th Edition, Page 416