Epichlorohydrin (ECO)
Epichlorohydrin (ECO) is a superior grade, multipurpose polymer. It bridges the gap between nitrile and other considerably more expensive polymers
Typical applications
- Automotive fuel systems
- Bladders
- Diaphragms
- Rollers
Advantages
Disadvantages
Properties
Resistance
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)
- Limited colour range
Properties
| Hardness Range | 40 – 85 |
| Heat Resistance | |
| Maximum Continuous | 140°C |
| Maximum Intermittent | 160°C |
| Low Temperature Resistance | -30°C |
Resistance
| Resistances | |
| Oxidation | Excellent |
| Ozone & Weathering | Good |
| Oil Resistance | |
| ASTM Oil No.1 @ 20°C | Excellent |
| ASTM Oil No.1 @ 100°C | 150°C Good |
| ASTM Oil No. 3 @20°C | Excellent |
| ASTM Oil No. 3 @ 100°C | 150°C Good |
| Fuel Resistance | |
| ASTM Fuel @ 40°C | Good |
| Solvent Resistance | |
| Alcohol @20°C | Fair |
| Acetone @20°C | Unsuitable |
| Benzene @20°C | Unsuitable |
| Chemical Resistance | |
| Acids | Poor |
| Bases | Fair |
| Physical Strength | Good |
| Compression set | Good |
| Tear & Abrasion Resistance | Fair |
| Resilience | Fair |
| Permeability to Gases | Low |
| Electrical strength | Poor |
| Flame Resistance | Good |
| Water Resistance | Fair |
