| Property |
Test Method |
Units |
Typical
Value
|
Density
Skin/Skin (s/s) |
EN ISO 845 1995
BS 4443 Pt1 : 2 1988
DIN 53420 1978 |
kg/m³ |
33
|
| Recommended operating temperature range |
Internal to manufacturer |
Max °C |
+105
|
|
|
Min °C |
-70
|
| Compression stress – strain characteristics |
EN ISO 3386/1 1997
BS 443 Pt1 : 5a 1988 |
|
|
| 25% Compression |
DIN 53572 1986 |
kPA |
40
|
| 40% Compression |
|
kPA |
75
|
| 50% Compression |
|
kPA |
115
|
| 60% Compression |
|
kPA |
175
|
Compression set
s/s thickness
72 hrs 50% compression 23°C, ½ hr recovery |
EN ISO 1856 1996
BS 4443 Pt1 : 6b 1988
DIN 53572 1986 |
% set |
27
|
| 48 hrs 20% compression 23°C, ½ hr recovery |
|
|
7
|
| Tear strength |
EN ISO 1856 1996
BS 4443 Pt6 : 15 1991 |
N/m |
690
|
| Tensile strength |
ISO 1798 1983
BS 4443 Pt1 : 3a 1988
DIN 53571 1986 |
kPA |
455
|
| Elongation at break |
|
% |
135
|
| Water vapour transmission Temperature = 38°C Relative humidity gradient” |
ISO 1663 1981
BS 4370 Pt2 : 8 1993
DIN 53429 1971 |
µg/m²/sec |
30
|
Permeability
Sample = 25mm thick |
|
ng/Pa/s/m |
0.13
|
| Water absorption |
DIN 53428 1986 |
|
|
| 1 Day |
|
% vol |
<0.1
|
| 7 Days |
|
% vol |
<0.3
|
| 14 Days |
|
% vol |
<0.4
|
| 28 Days |
|
% vol |
<0.5
|
| Thermal conductivity Tested at mean temp of 10°C |
ISO 8302 1991
BS 874 Pt2 : 2.1 1986 |
W/m.K |
0.040
|
| Horizontal burning characteristics |
ISO 3582 1978
BS 4735 1974 |
|
|
| Thickness 5mm |
|
mm/sec |
1.5
|
| Thickness 13mm |
|
mm/sec |
1.1
|
| |
FMVSS.302 |
|
Pass at 7mm thickness and above
|
| Shore hardness 00 scale (min 10mm c/c thickness) |
ISO 868 1985
BS 2782: Pt3
Method 365B : 1992 |
|
54
|
