NMPEF-1, NMPEF-2 and NMPEF-4 are closed-cell, cross-linked polyethylene foams. They are available in sheet form, fabricated as gaskets or thermoformed into simple or complex shapes. A denser grade is available upon request. For more detailed technical data, please contact Newmet (email).
Applications |
|
---|---|
Product Features |
|
Quality standards |
|
Markets |
|
Typical properties
Product Property | Value | Test Method | Footnotes |
---|---|---|---|
Nominal Density (kg/m3) | 15 |
ISO 7214 |
|
Compression Stress-Strain (kPa) | 25% compression - 22, 40% - 50, 50% - 80 |
BS ISO 7214 1998 |
|
Compression Set (% set) | 25 |
BS EN ISO 1856 |
50% compression, 22hr, 23˚C, 24 hour recovery |
Tensile strength (kPa) | 235 |
BS ISO 7214 1998 |
|
Tensile Elongation (%) | 125 |
BS ISO 7214 1998 |
|
Tear Strength | 545 N/m |
BS EN ISO 8067 1995 |
|
Hardness Shore 00 | 26 |
ISO 868 1985 |
|
Recommended operating temperature range (˚C) | +95 max, -70 min |
Internal |
The maximum operating temperature shown is defined as the temperature which will typically cause a linear shrinkage of 5% after a 24 hour exposure period, using sample dimensions of 100mm x 100mm x 25mm. This figure is provided for general guidance only. The actual level of shrinkage the foam will undergo at any particular temperature is dependent on a number of system variables such as sample dimensions, cell size, loading conditions and exposure period. |
Thermal conductivity (W/m.K) | 0.04 |
ISO 8302 1991 |
Mean temperature of 10˚C |
Flammability | Complies |
FAR 25.853 (a)(1)(ii) |