Engineered for extremes
FFKM High-Temp 75P
Read the code: FFKM, HT duty (high temperature), 75 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.
A 75 Shore A FFKM for the highest temperatures and the broadest chemistry: steam and hot water, acids, bases, amines and aromatics; to 300 °C in dry heat, with a steam limit to be set from test data (target 250 °C).
- Polymer class
- FFKM
- Duty
- HT: high temperature
- Pole mark
- HPHT
- Hardness
- 75 Shore A
- Temperature range
- -15 to 300 °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 | 75 | 70 to 80 | Shore A | ASTM D2240 / ISO 48-4, 1 s |
| Specific gravity | 2 | ±0.03 of approved value | ASTM D297 / ISO 2781 | |
| Tensile strength | 15 | min 12 | MPa | ASTM D412 die C / ISO 37 type 2 |
| Elongation at break | 170 | min 130 | % | ASTM D412 die C / ISO 37 type 2 |
| Modulus at 100 % | 7 | 5 to 9 | MPa | ASTM D412 die C / ISO 37 type 2 |
| Compression set, 70 h at 250 °C | 25 | max 35 | % | ASTM D395 method B, button |
| TR10 | -2 | max 0 | °C | ASTM D1329 / ISO 2921 |
| Saturated steam, 168 h at 250 °C, volume change | +3 | max 6 | % | In-house autoclave method |
| Heat ageing 70 h at 300 °C, hardness change | +3 | 0 to 6 | points | ASTM D573 / ISO 188 |
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 |
|---|---|---|---|
| Steam ageing | In-house autoclave method, published with results | 168 h and 500 h at 250 °C | Planned |
| Long-term heat ageing | ASTM D573 / ISO 188 | 1,000 h at 300 °C | Planned |
| Sour ageing and life prediction | ISO 23936-2 Annex A / NORSOK M-710 | Sour multiphase fluid (hydrocarbon liquid, water, gas with H2S) at three temperatures; Arrhenius extrapolation to service temperature | Planned |
| Mechanical seal approval | Pump OEM qualification (API 682 seals) | Per OEM | 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