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POR 304/CM
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Closed-cell foam rubber
Applications: thermal insulation and soundproofing - liquid- and gas-tight gaskets in doors, windows, etc.
Vibration damping, waterproofing material for industrial applications, generally.
Sizes:
thickness ranging from 1.5 to 60 mm - rolls h 1000x10000 mm - sheets 1000x2000 mm
Made-to-measure profiles.
| Technical features | Unit of measurement | Measured values | Standards |
| Composition | EPDM (no sulphur) | ||
| Reference standard | RE 42/2A2 | ASTM D-1056 | |
| Cell structure | closed-cell | ||
| Colour | black | ||
| Density | kg/m3 | 120±20 | ISO 845-88 - ASTM D 3575 |
| Water absorption | % | 0.13 | ASTM D 1056 - 3 min. |
| Temperature range | °C | -40/+95 | ASTM D 3575 |
| Intermittent temperature range | °C | 130 | |
| Shrinkage after 22 h at 70 °C | Linear dimension | -1.85 | ASTM D 1204-68 |
| % change | -1.78 | ||
| Tensile strain at break | % | >150 | ASTM D 412 |
| Break strength | kg/cm2 | 4.5 | ASTM D 412 |
| Tearing strength | kg/cm | 2.8 | ASTM D 624 |
| Strengths | AIR+U.V. VERY GOOD / | ASTM D1149-99 | |
| OZONE 48 h / 200 pphm | |||
| Compressive yield strength at 25% | kg/cm2 | 0.35 | ASTM 1056/2000 |
| Compressive yield strength at 50% | kg/cm2 | 0.7 | ASTM 1056/2000 |
| Residual deflection at 25% | % | 20 | |
| (test performed crushing a 30 mm thick specimen | |||
| at a temp. of 21 °C for 22 h) | |||
| Compression set 25% / 22h | % | 40 | ASTM D 395 |
| Hardness | Shore 00 | 40/55 | ASTM D 2240 |
| Thermal conductivity | W/m-K | 0.0501 | ASTM C518-04 |
| Fire-resistance rating | pass (FR) | FMVSS 302 - FIAT 50433 | |
| Test at 90°C in contact with 0.02% H.C.L. acid for 15 min | Max. shrinkage (%) | 3 | |
| Ford WSK-M2D419-A | pass | ||
| Vulcanization peroxide | No sulphur |
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