Unverified85% confidenceDecision RuleTime unknown
木结构/家具用防火涂料应认准B1级（难燃）阻燃涂料，涂布量需达到500g/㎡以上（约2-3遍）才能形成有效膨胀炭化层，单遍薄刷达不到检测标称等级
1
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85%
Confidence
Long-term
Relevance
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Unverified薄型/超薄型膨胀防火涂料涂层薄、饰面平整可上色，但耐火极限低（通常≤1.5h）；厚型防火涂料耐火达3h但表面粗糙需另做装饰面，二者不可用厚度换等级76% similarUnverified防火涂料的防火性能仅在标称涂布量/厚度下成立，验收常用测厚仪或称重法核查；家装自涂应按产品说明书的g/㎡用量分遍达标，而非以表面覆盖为准72% similarUnverified膨胀型防火涂料遇火受热膨胀5-10倍形成炭化隔热层，靠隔热延时；非膨胀型（厚型）靠本身低导热骨料。室内隐蔽美观要求高选膨胀薄型，露天耐候优先厚型非膨胀70% similarUnverified选购木屑蜡引火块看蜡含量：蜡占比≥60%的引火块防潮性好、单块燃烧≥10分钟；纯压缩木屑块（无蜡）遇潮易失效且燃烧时间短，仅适合干燥储存与快速引燃70% similarUnverified木芯相比棉芯更容易出现点不着、火焰熄灭的情况，需要定期修剪烛芯至约3-5mm并清除碳化部分才能正常燃烧69% similar
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