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
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