Engineered for extremes
FVMQ Ultra-Low-Temp 70P
Read the code: FVMQ, ULT duty (ultra-low temperature, seals at −55 °C or below), 70 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 70 Shore A fluorosilicone for static seals in fuels, oils and air at very low temperature: arctic instrumentation, fuel systems and controls, to −60 °C.
- Polymer class
- FVMQ
- Duty
- ULT: ultra-low temperature, seals at −55 °C or below
- Pole mark
- HPLT
- Hardness
- 70 Shore A
- Temperature range
- -60 to 175 °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 |
| Specific gravity | 1.45 | ±0.02 of approved value | ASTM D297 / ISO 2781 | |
| Tensile strength | 8 | min 6.5 | MPa | ASTM D412 die C / ISO 37 type 2 |
| Elongation at break | 250 | min 180 | % | ASTM D412 die C / ISO 37 type 2 |
| Compression set, 22 h at 175 °C | 20 | max 30 | % | ASTM D395 method B, button |
| TR10 | -58 | max -55 | °C | ASTM D1329 / ISO 2921 |
| ASTM Fuel C, 70 h at 23 °C, volume change | +20 | max 25 | % | ASTM D471 / ISO 1817 |
| IRM 903, 70 h at 150 °C, volume change | +5 | max 10 | % | ASTM D471 / ISO 1817 |
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 |
|---|---|---|---|
| Low-temperature sealing | Product-configured O-ring test (method published with the report) | Sealing at −60 °C (static) at rated pressure; leak onset temperature reported with TR10 of the same lot | Planned |
| Fuel and oil immersion | ASTM D471 | Fuel C, IRM 903, customer fluids | 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