PORON 4790-79 display back pad foam is a thin material that allows for excellent energy management. By absorbing and distributing impact energy, this firm foam prevents cracks in displays.
Please see below for a sampling of data for this material formulation. For detailed material information and to use advanced features such as filtering, visit the PORON® Polyurethanes Product Properties Guide.
| 4790-79-09 | 4790-79-12 | 4790-79-15 | 4790-79-20 | |
|---|---|---|---|---|
| Thickness (Min) (mm) | 0.53 | 2.03 | 3.18 | 1.57 |
| Thickness (Max) (mm) | 1.00 | 9.53 | 12.70 | 4.78 |
| Density ASTM D 3574 Test A (kg/m3) | 144 | 192 | 240 | 320 |
| Thickness Tolerance (%) | +/-10% | +/-10% | +/-10% | +/-10% |
| Compression Force Deflection Typical Value @ 25% (kPa) | 13.7 | 21.0 | 42.0 | 92.0 |
| Compression Set (70°C) Max Value (%) | 10.0 | 10.0 | 10.0 | 10.0 |
| Tensile Strength (kPa) | 207 | 414 | 689 | |
| Tensile Elongation % Typical Value ASTM D 3574 (%) | >145 | >145 | >145 | >145 |
| Tear Strength (kN/m) | 0.9 | 1.1 | 1.8 | |
| Temperature Resistance: Recommended Constant Use (°C) | 90° | 90° | 90° | |
| Temperature Resistance: Recommended Intermittent Use (°C) | 121 | 121 | 121 | |
| Temperature Resistance: Embrittlement (°C) | -38° | -38° | -38° |
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