It is not merely hard usage that deadens rubber billiard cushions, windshield strips, matting, packing, belting, hose, tires. The soft air sucks life just as surely, though more insidiously. At the chemical laboratories of E. I. duPont de Nemours & Co., a new product has been invented—neozone. Rubber treated with neozone resists the subtle deterioration caused by oxygen in the air, thus retains life longer.
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