A study was designed to show the nature of weathering of an elastomer poly( ester‐urethane), and to indicate methods of overcoining the deficiency. Unprotected polymer, when exposed to UV radiation in a Weatherometer, showed deterioration which is characterized by loss of tensile strength, some increase in modulus, and a decreased extensibility of surface skin.
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Warfield et al. (1961) studied this question.
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