Wartime Technology

Scientific signs of wartime:

> Nylon monafilaments, once strung on tennis racquets and stretched between hook & line as fishing leaders, are now used as surgical sutures.

> Foamed-rubber latex, familiar stuffing for auto upholstery, now seals airplanes' bomb doors and cabins, cushions flight-control instruments, earphones and helmets. It weatherstrips tanks against sand and water, protects crews from bumps.

> United States Rubber Co. calls its new extrusion method "the most important improvement in rubber processing in many years." Developed for tank treads, the process squirts rubber through tiny holes into molds under high pressure which raises the temperature almost to the vulcanization point, gives a more uniform cure. Postwar promises include rubber heels of higher quality from less rubber.

> Dektred is a new Goodyear nonskid flooring material for ships. A thick liquid, it may be sprayed or troweled on steel, wood or concrete, weighs little in the thin coating (1/32 in.) needed. Dektred is unimpaired by 50DEG-below-zero cold, softens but slightly in 160DEG heat, resists gasoline, oil, soap, salt water.

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