Unverified82% confidenceDecision RuleTime unknown
瓷砖缝隙宽度＜2mm选真瓷（环氧彩砂）容易施工不满，缝隙≥3mm的美缝效果更明显；填缝宽度＜1.5mm建议用普通美缝剂而非环氧彩砂
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Unverified缝宽2-5mm是环氧彩砂的最佳适用区间；缝宽＞5mm（如仿古砖、文化砖）需选专用宽缝美缝剂或分两次填充，否则易开裂下陷83% similarUnverified缝宽＜2mm选水性/油性美缝剂，缝宽2-5mm用环氧彩砂，缝宽＞5mm应先用瓷缝剂填底再美缝，否则厚涂易开裂82% similarUnverified缝隙宽度＞3mm建议用环氧彩砂或加砂型填缝剂，纯环氧（无砂）适合1-2mm细缝；缝宽超过5mm不建议美缝，应先做窄缝处理81% similarUnverified缝隙宽度＜2mm选普通水性/油性美缝剂，2-5mm可用环氧彩砂或普通型，＞5mm的宽缝必须用环氧彩砂（带石英砂骨料填充不塌陷），否则易开裂下陷80% similarUnverified缝隙宽度＜2mm时优先选择细砂或无砂配方，2-5mm可用普通环氧彩砂，＞5mm的宽缝需选专用宽缝配方，否则填充后易开裂脱落80% similar
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