Density
8 to 13 kg/m³ (BS 4370)
Thermal Conductivity (k Value) +
0.030 W/mK at 5°C; 0.032 W/mK at 20°C
0.034 W/mK at 30°C (after conditioning at 23°C, 65% r.h.)
0.032 W/mK at 20°C (after conditioning at 23°C, 95% r.h.). (BS 874)
Shrinkage +
6.5% (BS 5617); 6.6% (BKS); 3.8% (DIN 18159. part 2); 3.0% (HUD U. of M. Bull. No.74).
| Water Absorption 0.65 kg/m² (BS 5617); 2.0% vol.% (DIN 18159. part 2). Water Vapour Permeability + µ = 1.7 to 3.4 (BS 4370) Physical Structure Completely open-celled (BS 4370 proposed draft). Compression Strength 16 kPa (BS 4370). Tensile Strength 12 pKa (BS 4370). |
 |
Electrical Insulation Resistance +
2.9 x 1012 ohms (ASTM D-257).
| Flammability *+ Extent of burning 18.8 mm (ASTM D-1692). Limiting Oxygen Index *+ 29% (ASTM D-2863). Smoke Density *+ Less than 5% (BS 5111). Flash Ignition Temperature +* 402°C (ASTM D-1929). |
 |
Self Ignition Temperature +*
621°C (ASTM D+1929).
Resistance to Microbial Attack +
Immune to attack from Merulius lacrymans (dry rot fungus). Poria monticola (pore fungus). Coniophora cerebella (cellar fungus). Chaetomium globosum (soft rot fungus). Cladosporium cladosporioides, Paecilomyces variotti, Penicillium expansum, Stachybotrys atra, Aspergillus niger (BKS. BS 1982).
Energy Balance
1 sq. metre of standard cavity
Energy content of Airfoam™ -40 MJ
Typical Energy saving -210 MJ per annum.
+ Test data from independant institutions.
* The data presented is not intended to reflect hazards arising from this or any other material under actual fire conditions.
