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Subject: tension (The inner tape consists of a sealant material with a plastic backing.) The backing is designed to provide a degree of penetration resistance during backfilling, but mainly, it permits tension to be applied to the sealant during application, thereby allowing conformation to the surface without severely reducing the thickness of the sealant under tension.OMG! расписывается изоляц. покрытие. Непонятно в последнем предложении как этот backing permits tension to be applied to the sealant.. Непонятен процесс - не могу перевести :( Подскажите, плиз!
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