Engineered for extremes
EPDM Radiation 80P
Read the code: EPDM, RAD duty (radiation resistance), 80 Shore A, P for peroxide 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.
An 80 Shore A EPDM for nuclear power plant pumps, valves and penetrations: radiation resistance, low halogen and sulfur content, and steam resistance for accident conditions.
- Polymer class
- EPDM
- Duty
- RAD: radiation resistance
- Hardness
- 80 Shore A
- Temperature range
- -40 to 140 °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 | 80 | 75 to 85 | Shore A | ASTM D2240 / ISO 48-4, 1 s |
| Tensile strength | 14 | min 11 | MPa | ASTM D412 die C / ISO 37 type 2 |
| Elongation at break | 220 | min 150 | % | ASTM D412 die C / ISO 37 type 2 |
| Compression set, 22 h at 125 °C | 15 | max 25 | % | ASTM D395 method B, button |
| Elongation retained after gamma irradiation to 1,000 kGy | To be measured | min 50 (target) | % | Irradiation at an accredited facility |
| Halogens and sulfur, each | To be measured | max 200 | ppm | Combustion ion chromatography |
| Hot water, 168 h at 140 °C, volume change | +3 | max 8 | % | ASTM D471 / ISO 1817 |
| Steam, 24 h at 170 °C | No cracking | no cracking | In-house autoclave method |
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 |
|---|---|---|---|
| Radiation ageing | Plant-specific nuclear qualification | Gamma dose and accident steam per the owner's specification | Planned |
| Chemical purity | Halogen and sulfur analysis | Each lot | 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