Phenolic composite sheet structure Duct Duct XPS composite plate, the products for the phenolic foam middle layer, and then by the outer layer of embossed aluminum foil compound formed. Phenolic compound Duct Duct than other types of preservatives outstanding fire performance. The scope of application: Duct plate phenolic compound for a variety of central air-conditioning system for the non-combustible as a result of the combustion properties of A-level, in particular fire safety requirements for high places, such as flammable goods stores, chemical plants, electronic plants, civil air defense projects, high-rise buildings, large supermarkets, at places such as shopping malls hotels and other facilities for fire insulation. Standard products sizes: Plate thickness of 20mm, width 1200mm, length 3000mm Physical and chemical properties: Characteristics of unit performance test methods Apparent density Kg/m3 50-60 Thermal Conductivity (25 ) W / (m.. K) GB/T10294 0.020 Compressive strength Kpa GB/T8813 250 Kpa 1.0 Flexural strength Dimensional Stability% GB/T8811 0.3 Water absorption% (v / v) GB/T8810 1.9 Combustion performance A-level non-combustible GB8624 Maximum smoke density of% 2 Temperature Range -180 150 Packaging for each piece of 10 with EPE foam film dressings can be waterproof crash.