Cerulean EP 03 is a terpolymer EPDM compound specially formulated for weather applications, offering higher resistance to a wide range of ozone and weathering conditions. With unrivalled steam resistance and excellent low-temperature properties, this compound is built for valves, pumps and automotive components exposed to outdoor elements and steam cycles alike.
| S.No | Description | ASTM Test Method | Unit | Spec |
|---|---|---|---|---|
| 1 | Hardness | D 2240 | Shore A | 90±5 |
| 2 | Tensile Strength | D 412 | MPa | 10 (Min) |
| 3 | Elongation @ break | D 412 | % | 125 (Min) |
| 4 | Compression Set 22hrs@70°C | D 395 Method B | % | 25 (Max) |
ISMAT manufactures Cerulean EP 03 as a 90±5 Shore A terpolymer EPDM, validated through in-house testing to ensure consistent quality across every batch. This is a firmer grade within the Cerulean EP range, giving it added mechanical rigidity while retaining the excellent ozone and weather resistance EPDM is known for.
Its unrivalled steam resistance sets it apart for applications where the seal is exposed to repeated steam cycles, while its excellent low-temperature properties down to -55°C make it dependable in cold outdoor environments too. That combination makes it a strong fit for valves, pumps and automotive components facing both weather exposure and steam or thermal cycling.
Hardness (Shore A): 90±5
Temp Range: -55°C to 120°C
Highly Resistant to Weather and Ozone
Excellent Low Temperature Properties

Unrivalled Steam Resistance
Automobile