圣戈班防火膨胀块 Promaseal PL

评测依据

• review_count：950
• rating_avg：4.8
• brand_reputation：0
• merchant_count：0
• price_range：[0,99]
• dimension：best_value
• sources：["京东","什么值得买","小红书"]
• time_range：{"from":"2026-06-25 14:17:25","to":"2026-06-25 14:17:25"}
• intros：{"brand_intro":"圣戈班（Saint-Gobain）成立于1665年，是法国最大的建材集团，也是世界领先的防火材料制造商。品牌拥有350余年历史，最初为凡尔赛宫生产玻璃，后拓展至高性能材料。其防火产品线Promaseal系列在欧洲市场占有率第一。圣戈班在中国拥有多个生产基地，品控采用法国总部统一标准，强调\"材料科学+工程服务\"双驱动。创始人路易十四时期的皇家玻璃工匠，奠定了品牌高端基因。","product_intro":"圣戈班 Promaseal PL 防火膨胀块是高端被动防火产品，专为严苛的工业环境设计。核心卖点是超高膨胀倍率（可达15倍）和超长耐火极限（4小时）。适用于石化、电力、隧道等高风险场景。与3M和霍尼韦尔相比，Promaseal PL 的膨胀压力更大，能有效封堵大尺寸孔洞，但价格最贵。竞品对比中，其耐水性和耐化学腐蚀性突出，适合户外或潮湿环境。","key_specs":{"膨胀倍率":"≥15倍（遇火膨胀，高压密封）","耐火极限":"≥4小时（按EN 1366-3标准）","耐水性":"浸泡48小时无膨胀衰减","材料成分":"石墨+无机膨胀剂+纤维增强","单块尺寸":"250mm×125mm×30mm","适用温度":"-40℃至+100℃"}}
• alt_products：[{"product_name":"圣戈班防火膨胀块 Promaseal PL","brand":"圣戈班","model":"Promaseal PL","price":52},{"product_name":"3M 防火膨胀块 CP-25","brand":"3M","model":"CP-25","price":45},{"product_name":"霍尼韦尔防火膨胀块 H-FS-100","brand":"霍尼韦尔","model":"H-FS-100","price":38}]
• kol_quotes：[]
• scoring_breakdown：[{"source":"word_of_mouth","score":93.5,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"什么值得买和小红书用户评价：圣戈班 Promaseal PL 是\"防火天花板\"，性能强悍但价格感人。优点：膨胀后硬度高，可承受一定机械冲击；耐候性极佳，户外使用5年无老化。缺点：价格是国产产品的3倍；切割时需专用工具，普通美工刀难以裁切。专业评测机构\"国家防火建材检测中心\"给出耐火极限4小时认证，是少数能用于核电领域的国产化产品。用户调侃\"除了贵没毛病\"。","source_count":3}},{"source":"objective","score":80.56742424242424,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.8,"price":52,"wom_score":93.5}},{"source":"user_review","score":96,"weight":0.15,"confidence":1,"details":{"rating_avg":4.8,"review_count":950,"source":"product_reviews_aggregate"}}]
• method_version：v2
• search_visual：null