Unverified85% confidenceTradeoffTime unknown
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
1
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85%
Confidence
Long-term
Relevance
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Unverified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78% similarUnverified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75% similarUnverified隔脏口罩选熔喷布层数：优质款含1-2层熔喷布（克重18-25g/㎡），劣质款仅两层无纺布无熔喷层，遮光测试无阻隔感、点燃有明火而非熔缩即为无熔喷布72% similarUnverified燃烧时长与蜡杯直径正相关而非仅看容量：单芯蜡直径超过8cm会烧不透边缘，大直径蜡杯应选双芯或三芯设计72% similar
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