1. Long-term thermal insulation effect: lasting thermal insulation effect. Its thermal conductivity reaches 0.025W/MK at -20℃ 2
Durability: The insulation performance of extruded board changes little with time, and the retention rate reaches more than 90%.
It also has corrosion resistance which can ensure the long-term stability of all aspects of product performance. 3 Water
resistance: water absorption rate of extruded plate is less than 0.5%, water vapor permeability coefficient is less than 3mg/(m3).
4 Compressive strength: Extruded plate is a kind of light and high strength material, according to the design requirements can
bear 200KPa-700KPa pressure. 5 High quality flame retardant performance: B2, B1. 6 Dimensional stability: the extruded board
adopts the secondary foaming process, so that the raw material and foaming agent fully react. To achieve dimensional stability,
can ensure that the board deformation is small for a long time. 7Excellent freeze-thaw resistance, excellent winding resistance:
after 200 freeze-thaw cycles of -45℃ to 20 ℃, it can still maintain excellent insulation performance, and its retention rate
reaches 98.4%; The compressive strength remained at the level before the experiment after 1000 times. 8. Closed cell structure
guaranteed by low carbon environmental protection and high technology: stable chemical performance, no volatilization of harmful
substances in the process of use, decomposition and mildew will not occur.