Unverified85% confidenceDecision RuleTime unknown

真正防暴雨需选PU涂层≥5000mm水压或TPU复合材质并配压胶接缝，普通涤纶硅涂（无胶条）仅能防小雨15-20分钟，长时间大雨会从缝线渗水

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Unverified面料涂层防水指数看PU/TPU涂层，标注防泼水（DWR处理）仅能应对小雨5分钟，真正防雨需要耐水压≥5000mm的涂层面料87% similar Unverified面料标注涂层PU或加TPU膜的可实现真正防水，普通高密度棉华达呢仅防泼水（能扛小雨5-10分钟），大雨仍会渗透；查看是否标注防水指数≥5000mm才算实用防水86% similar Unverified真正防水的风衣面料克重需≥180g/m²且带PU/TPU涂层或防水膜（防水指数≥5000mm），普通聚酯纤维标注'防泼水'只能应对小雨，中雨会渗透85% similar

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