Factory price professional Extruded Door and window EPDM air tightness sponge rubber sealing strip
EPDM is with excellent all around properties. It is of many advantages, for example, outstanding anti-ozone, excellent weather resistance, outstanding chemical resistance, resistent to polar reagent like brake fluid,strong acid and alkali,alcohol and so on.
The disadvantage is expanding too much in the ordinary mineral oil and second ester lubricating oil.
Temperature range：-60℃~+150℃.
Sealing Rubber Strip Specification
| Characteristics | EPDM | PVC | |
| Basic Characteristics | Shore A Hardness | 70±5，60±5 | 65±5，70±5，75±5，80±5 |
| Tensile-strength (Mpa) | ≥5.0 | ≥5.0 | |
| Tensile elongation (%) | ≥250 | ≥250 | |
| Compression Set （100℃*22h）(%) | ≤35 | — — | |
| Heat Aging(100℃*72h) (Tensile-strength and Tensile Elongation Variation (%)) | — — | ＜15，＜30 | |
| Heat Aging(100℃*168h) (Tensile-strength and Tensile Elongation Variation(%) ) | ＜25，＜40 | — — | |
| Weight Loss on Heating（%） | ≤3.0 | ≤3.0 | |
| Low Temperature Brittleness(-20℃) | — — | Pass | |
| Low Temperature Brittleness(-40℃) | Pass | — — | |
| Product Performance | Usage Temperature(℃) | -50℃～120℃ | -20℃～100℃ |
| Flame Retardant | N/A | N/A | |
| Ozone Proof | Excellant | Normal | |
| Storage Life(Year) | 10-15 | 5-7 | |
| Product Technics | Forming Method | Microwave Vulcanization | Extrusion Molding |
| Corner Joint Menthods | Vulcanized | Heat Weld | |
| Color | Black | Multi-color | |
1. Mixing
Weighting-Mixing-Oping mill-Cooling
2.Extrusion
High-temperature setting-Micro vulcanization-Hot vulcanization-Cooling
3.Testing
4.Packaging
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