​​PROPERTIES OF INSULATED MATERIALS​

POLYURETHANE FOAMES (P.U.):

Insulation composed principally of the catalyzed reaction products of polyisocyanate polyhydroxy components processed with foaming gas to form rigid foam having predominantly closed-cell structure. It is used world wide as insulation against temperature extremes and has been adapted as one of the best energy saving materials in the building industry​.

TYPICAL PROPERTIES OF POLYURETHANE.

Property
Specification
Value
Thermal Conductivity
BS 4370-PT.2 Method 7/1973
0.016-0.022 W/m.k
Water Absorption
ASTM C272
0.032-0.035 gm/cm3.day
Density
BS 4370 Method 2/1968
35-38 kg/m3
Close cell content
BS 4370 Method 10/1968
94-96%
Compressive strength @ 10% strain
BS 4370 Method 3/1968
130kn/m2 Parallel to thickness
Dimensional Stability
BS 4370 Method 5B/1968
0-+0.5% for 14 days @ 1000C
Water Vapor Transmission
BS 4370 Pt. 2 Method 8/1973
0.033 gm/m2. mm Hg. day
Friability
BS 4370 PT3 Method 12/1974
5.3 gm/ min.
Fire Resistance
DIN 4120
Class B2 m2​

There are two more insulations types such as Rigid Polyurethane (PU B2) and Polyisocyanurate (PIR). Both are highly effective, lightweight, more information can be known like specifications and certificates from Dubai Municipality and Dubai Central Laboratory. Certificate from Dubai Municipality for PUR Insulation foam, Please click here Certificate from Dubai Central laboratory for PUR and PIR Insulation foam, Please click here​