Engineered for extremes
EPDM Swell 70S
Read the code: EPDM, SWELL duty (swellable elements), 70 Shore A, S for sulfur cure, recipe 01.
Development grade. The values below are design targets, not measured results. Each target becomes a typical value, with the number of lots and the test report behind it, as testing is completed.
A 70 Shore A EPDM that swells in hydrocarbons for swellable packers: it seals irregular open holes and annuli by absorbing oil, without mechanical setting.
- Polymer class
- EPDM
- Duty
- SWELL: swellable elements
- Hardness
- 70 Shore A
- Temperature range
- -40 to 150 °C
- Lead time
- Trial quantities on request
- Minimum order
- 25 kg
- Issued
- 2026-10-28
- Revision
- A
- Packing
- Per order
Design targets and release limits
| Property | Target | Limits | Unit | Method |
|---|---|---|---|---|
| Hardness | 70 | 65 to 75 | Shore A | ASTM D2240 / ISO 48-4, 1 s |
| Tensile strength | 12 | min 10 | MPa | ASTM D412 die C / ISO 37 type 2 |
| Elongation at break | 450 | min 350 | % | ASTM D412 die C / ISO 37 type 2 |
| IRM 903, 168 h at 90 °C, volume swell | +150 | min 120 | % | ASTM D471 / ISO 1817 |
| Swell rate curve | To be measured | Reported, no limit yet | In customer fluid at temperature | |
| Pressure held by swollen element | To be measured | Reported, no limit yet | MPa | In-house test fixture |
Qualification plan
The grade code says what this compound is designed for. This table says what it has passed: a duty is claimed only once its report is on file.
| Test | Standard or method | Conditions | Status |
|---|---|---|---|
| Swell rate | In-house method, published with results | In customer crude or kerosene at well temperature | Planned |
| Pressure holding | In-house fixture | After swelling | Planned |
Design targets are the values the compound is designed to reach. They are not measured results and they are not a warranty. Release limits apply to lots once the recipe is approved. The grade code says what the compound is designed for; the qualification plan says what it has passed. Confirm suitability in your own application and fluids.
Every lot is supplied with a certificate of analysis. Enter the lot ID under Track on the website to see the lot record. Pascalor is an independent brand and is not affiliated with any polymer manufacturer named elsewhere on this site.
Registered entity name to be added | quotes@pascalor.com