表面覆材结构Facing Composition数值（英制）Values (English)数值（公制）Values (Metric)铝 箔Aluminum Foil0.000276〞7.0 micron粘结剂Binder4.8 1bs/ 3000ft28g/㎡三向玻璃纤维网Tri-Way Fiberglass2.0/inch(MD)8/ 100mm (MD)3.0/inch(XD)12/ 100mm (XD)牛皮纸 Kraft36 1bs/ 3000 ft260g /㎡粘结剂Binder4.8 1bs/ 3000ft28g/㎡铝 箔Aluminum Foil0.000276〞7.0 micron 物理特性Physical Properties测试方法Test Method数值（英制）Values (English)数值（公制）Values (Metric)重
量
Basis Weight天 平Scale22 1bs/ 1000ft2110 g /㎡抗拉强度Tensile StrengthGB/T12914-199123.6 1bs/inch(MD)4.0 kn/m(MD)23.6 1bs/inch(XD)4.0 kn/m(XD)抗破强度Bursting StrengthGB/T454-200231.9 1bs/psi220  kpa耐渗水性Water-resistant23℃
24hNo leakage phenomenon无渗漏现象耐低温性Low-temperature-resistant-40℃
1hNo phenomenon of layered无分层现象耐高温性High temperature of116℃
4hNo  phenomenon of layered无分层现象厚 
度Thickness测微计Micrometer0.0068 inch170 micron * 以上物理特性数据系根据统计方式获取之平均值，重量/厚度 /-10﹪Physical Properties based upon statisticalaverages,Weight/Thickness /-10﹪* 特殊产品及尺寸，可根据订单加工分切Special products and size,processing orderscan be cut