Unverified85% confidenceCautionTime unknown
水泥基（老式白水泥）填缝与树脂美缝剂耐受性完全不同：水泥基不耐酸，草酸/盐酸类清洁剂会腐蚀掉缝隙材料，只能用弱碱含氯型；购买前需确认自家填缝材质
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85%
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Long-term
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