Answers to your problems of...
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REPORTS
CORROSION HEAT-FATIGUE MOISTURE ABSORPTION can start with a request
SPARTA „ your best source for
TEftOM*
SILICONE SCHOOL:
Why SPARTA ? • Trained staff of Fluorocarbon Engineers • Exclusive, patented process (Pat. No. 2,781,552) of Custom Molding in thin sections and shapes • Modern manufacturing methods • Precision engineered for quality control • Fast delivery — Economical
Why TEFLON? If your problem involves highly corrosive chemicals and temperature extremes... because of its unique combination of properties, Teflon offers design and product improvement opportunities with out parallel.
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TEFLON think of SPARTA ! Not only can we fill your require ments for Custom Molded Teflon . . . we carry a COMPLETE STOCK of all standard Teflon products.
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SPARTA
MANUFACTURING CO.
David P. Spalding describes compounding techniques
ocean mass would be required to dilute the wastes to the point of safety for humans—and without regard to other life in the sea. Each waste for disposal at sea must be considered individually as to its toxicity, effect on the barge or container materials of construction, solids present as they may plug valves or pumps, and rate of dis persal in the sea. And knowledge of the oceanography and the tidal prism of the dumping area is needed to prevent wastes being carried by currents to areas where long- or short-range toxicity effects may be serious. While deep sea disposal of wastes will prove useful in some cases, still this method must be recognized as limited by costs and the kinds of wastes that can be safely handled. B.F.G.
I/EC
School for Silicones G-E course in silicone rubber technology provides customer service in depth
Division of United States Ceramic T i l e Co.
DOVER, OHIO
PHONE 4-2380
WESTERN DISTRICT OFFICE Phone: ANGELUS 3-6359
Los Angeles, California
THE up-and-coming silicones in dustry is faced with several problems. One of the most pressing, common to
a sizable segment of the chemical world, is how to keep users up to date on improvements. Rubber makes up probably the largest single class of silicone ma terials. Advances in silicone-rubber technology are coming along thick and fast among this country's three basic producers (Dow Corning, Gen eral Electric's Silicone Products Department, and Union Carbide's Silicones Division). Getting this new technology into users' hands is no small problem. G-E feels that it has hit upon a better way to get the changing picture across to cus tomers and prospects than just by relying on its customer-service men. Some two years ago, plans were proposed to bring G-E's rubber know-how to its customers' doorsteps. In many cases, improvements in silicone rubbers change existing for mulations and processing methods. This alters physical properties during fabrication, so new techniques have to be worked out. G-E first took its rubber technicians to the lab of a supplier in the Mid-West and successfully showed their customers' production men how to work with these improved silicone elastomers. Last year, market development of rubber was separated from other functions for silicone products at G-E. John T. Castles, new manager of that activity, decided to set up a more complete program at the Waterford, N. Y., plant. This per-
Circle No. 34 A on Readers' Service Card, page 135 A 34 A
INDUSTRIAL A N D ENGINEERING CHEMISTRY For further information, circle numbers 35 A-1, 35 A-2, 35 A-3 on Readers' Service Card, page 135 A -
