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布料克重决定耐用性：一次性EVA/PE雨披约40-80g/㎡薄如塑料袋，可重复使用的涤纶+PU涂层款约150-220g/㎡，后者可用2-3年

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UnverifiedPU涂层雨衣的防水层会随时间水解老化（通常2-4年），出现发黏、脱落即失效；EVA材质更耐存放但偏硬且低温易脆78% similar UnverifiedPEVA/EVA材质防水性好且便宜但不透气易起雾、有塑料味、寿命短（6-12个月）；聚酯纤维手感好易清洗可机洗但需带涂层且价格更高78% similar Unverified长期换季存放（3个月以上）建议选材质厚度≥6丝（0.06mm）以上的复合PA+PE袋，薄于5丝的袋子反复抽气易在封口处漏气和爆裂77% similar Unverified追求长期耐用不建议买超薄无纺布款（60-80g/㎡），洗涤或受潮后易发霉、边缘散边，PP材质或高克重（≥300g/㎡）加硬无纺布寿命更长77% similar Unverified长期存放羽绒被/棉被选PP+复合尼龙膜袋（膜厚≥0.14mm），单层PE材质膜袋放置3个月以上易缓慢漏气回弹75% similar

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