Word: sealant
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Dates: during 1950-1959
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...Like to Try." Thiokol got into missiles in the same way the rubber was invented-by accident. Its researchers had found a way to process solid Thiokol into a liquid, and during World War II the armed services used it as a sealant for aircraft-carrier decks, pipelines, and the wing tanks of planes (the average commercial plane today carries about 300 Ibs. of Thiokol sealants). Then in 1946 Caltech's Jet Propulsion Laboratory, working on a radically new solid rocket fuel, tried mixing an oxidizing agent with rubber. But it had trouble combining the oxidizer with solid rubber...