| Clwyd reference |
ECO |
| ASTM classification |
ECO |
| Typical applications |
- Automotive fuel systems
- Bladders
- Diaphragms
- Rollers
|
| Advantages |
- Excellent resistance to oxidation
- Good resistance to ozone and weathering
- Excellent oil resistance
- Good, stable physical properties over wide temperature range (-50°C to 150°C)
- Low gas permeability
|
| Disadvantages |
- Poor compression set limits use as sealing material
- Exhibits corrosive effect on metals (limits bonding applications)
|
|
| Available hardness range (Shore A) |
40 - 90 |
| Upper continuous service temp. |
125°C |
| Min. temp. for sealing applications |
-35°C |
| Minimum non-brittle temp. |
-45°C |
| Tensile strength (up to) |
20 MPa |
| Elongation at break (up to) |
400% |
|
| Price Bracket |
Very low |
| ASTM 1 Oil |
Excellent |
| ASTM 2 Oil |
Excellent |
| ASTM 3 Oil |
Excellent |
| Kerosene |
Excellent |
| Liquid B |
None |
| Liquid 101 |
Excellent |
| Phosphate ester |
None |
| Ketone |
None |
| Toluene |
None |
| Iso-octane |
Excellent |
| Methanol |
Good |
| Acid (weak) |
Average |
| Acid (strong) |
None |
| Base (weak) |
None |
| Base (strong) |
None |
| Hydrogen sulphide |
Good |
| Steam |
None |
| Ozone |
Excellent |
| Radiation |
Good |
