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The popular Elastomers for the sealing industry include, Fluorcarbon, EPDM, NBR, H-NBR, Silicone, etc. They can be shaped to:
· O-rings
· Bellows
· Gaskets, etc.
Parameter | Unit | Fluorcarbon Rubber | EPDM | NBR | H-NBR | Silicone Rubber |
Hardness | Shore A | 70±5 | 70±5 | 70±5 | 70±5 | 60±5 |
Extensibility | % | 200 | 120 | 120 | 250 | 280 |
Tensile Strength | MPa | 12 | 9 | 9 | 12 | 8 |
Brittleness Temperature | oC | -30 | -15 | -15 | -50 | -30 |
Working Temperature | oC | -25 to +200 | -10 to +110 | -10 to +110 | -40 to +150 | -20 to +180 |