Science: Tectyl

When the submarine Squalus was finally raised and beached, the U. S. Navy's salvage job was not finished. The salvagers wanted to save the hull and especially the Diesel "engines from seawater corrosion. To do so they tried a new liquid chemical called Tectyl. Last week at the National Chemical Exposition in Chicago, Tectyl was shown to the public for the first time.

Invented and manufactured by J. M. Cohen of Potomac Chemical Co., Tectyl does two things: 1) separates salt water from steel, 2) forms an oily, protective coating on the metal. It...

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