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Contact SupplierInsulation Specification
Thermal Conductivity Value : Amount of heat (W) passing through a material having surface of 1 M2 and thickness 1 M in order to rise temperature by 1oC . Units are Wm K
K value (Insulation Value) : Thermal conductivity divided by thickness of the material [ W m2 K]
U value (Total Insulation Value) : Also known as Overall Heat Transfer Coefficient determined by the insulation value of the various materials forming the panel . [ W m2 K ] , KCalm2 h oC , BTU F t2 h oF
On Continuous System Density K value
Polyisocyanurate (PIR) 40-45 Kgm3 0.022 wm2K
Please note : Lower the K value , better is insulation capability
Polyisocyanurate (PIR) Foam Properties
Mechanical Characteristic of Foam
Density 40-45 kgm3 (as per BSEN 1602:1997)
Tensile Stress Greater than 100 kpa (as per BSEN 1608:1997)
Compression Resistance Greater than 100 kpa (as per ASTM C165 :2000)
Shear Resistance >100 kpa (as per ASTM 271271M)
Fire Property B2 B3 as per DIN 4102-1
Overall Heat Transfer Coefficient (U) Value -Wm2 K
Thickness in mm 35 40 50 60 75 100
Overall Heat Transfer Coefficient (U) 0.67 0.60 0.47 0.40 0.31 0.24