Popular elastomers used in the sealing business include silicone, fluorocarbon, EPDM, NBR, and H-NBR.
They are moldable into: Gaskets, bellows, O-rings, 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~+200 | -10~+110 | -10~+110 | -40~+150 | -20~+180 |