Unverified82% confidenceFactTime unknown
防水鞋的外层需定期用DWR（耐久防泼水）喷雾维护，DWR失效后水会浸润鞋面导致"表面湿透"，虽然内膜仍防水但透气性骤降、鞋子变重变冷
1
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82%
Confidence
Long-term
Relevance
-
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Unverified防水裤的防水失效多来自DWR（耐久拒水涂层）衰减而非防水膜损坏，出现表面'湿透吸水'现象时可用洗涤后低温烘干或补喷DWR恢复，而非直接更换83% similarUnverified防水膜鞋不可机洗和暴晒，机洗会破坏膜层贴合、高温会使胶层老化。应用软刷+清水+专用清洁剂手洗，晾干后喷DWR拒水剂恢复表面泼水性能；DWR每20-30次穿着或明显不泼水时需补喷83% similarUnverified防泼水(DWR)涂层只能应对小雨雪，不等于防水；且DWR会随洗涤和摩擦衰减，需定期用免洗防泼水喷雾补涂或热风烘干激活82% similarUnverified硬壳裤长期防水靠DWR涂层，涂层失效后表面浸湿会导致透气骤降，需定期用免洗或洗涤型DWR复喷并低温烘干激活82% similarUnverified看鞋标或产品页的防水等级：涂层防泼水（DWR）仅能应对小雪短时，进阶应选压胶全防水（seam-sealed）或GORE-TEX膜结构，后者才能在雪水浸泡和融雪湿地中保持内部干燥82% similar
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