Technical data sheet of Polystyrene(XPS) foam board    
ITEM  UNIT  SPECIFICATION
Density Kg/m3: 36~40
Thermal conductivity, 90 days, 10° C W/mK: 0.027~0.03
Compressive strength kPa≥ 300
Flexural Strength  Mpa: 1.06
Tensile strength kPa ≥ 300
Water absorption rate %≤ 1.00
Water vapor permeance Ng/(m. S. Pa)  ≤ 3
Dimension Change Rate %: ≤ 2
Combustion performance: Flame Retardancy B1
Temperature limits  ° C:  -50 to 75° C
Standard Size mm: 3000*1200*20