Properties of ethylene propylene diene monomer
- Excellent resistance to atmospheric ageing and oxygen.
- Good ozone resistance.
- Good resistance to most water-based chemicals.
- Great resistance to abrasives and tearing.
- Stable, saturated polymer backbone structure.
- Good electrical resistivity.
- Resistant to polar solvents like water, acids, alkalies, phosphate esters.
- Excellent flexibility at high and low temperatures.
- Can be finished to an extremely smooth surface
- Resistance to solvents and high temperatures.
Application of Ethylene propylene rubber
Since EPM or EPDM rubber does not crack outdoors, it is widely used for seals in buildings and in the automotive industry. Some other applications are steam hose, high temperature-resistant seals and roll covers. Polymerization and catalyst technologies in use today provide the ability to design EPM to meet specific and demanding application and processing needs. This has resulted in broad usage in following industries:
- Automotive weather-stripping and seals
- Glass-run channel
- Radiator
- Garden and appliance hose
- Tubing
- Belts
- Electrical insulation
- Roofing membrane
- Rubber mechanical goods
- Plastic impact modification
- Thermoplastic vulcanizates
- Motor oil additive applications
Ethylene-propylene rubbers are one of the most versatile, fastest growing synthetic rubber polymers. Excellent resistance to heat, oxidation, ozone and weather aging have led to increased demand for this rubber in automotive, construction, and mechanical goods applications. Current and emerging advanced polymerization and catalyst technologies have also led to design of polymers to meet application and processing needs that are very important to meeting the ever-increasing demands for product quality, uniformity and performance.



