Minimum operating temperature
Share the lowest temperature expected during operation, how long it lasts and the normal operating range.
BY APPLICATION / LOW TEMPERATURE
Low-Temperature O-Rings
Need O-rings for a −40°C or −60°C requirement? We support O-ring supply and material review based on your operating and cold-start conditions. These are requirements to assess, not product temperature ratings or performance guarantees.
Request a Technical Review
Initial response within 12 hours.
01 / LOW TEMPERATURE
Describe the Low-Temperature Conditions
Cold-start temperature
Share the temperature at start-up after cold storage or an idle period, and whether pressure or motion begins before the equipment warms up.
02 / LOW TEMPERATURE
Low-Temperature Material References
These third-party published technical references are not FLUID product test results or performance guarantees. Confirm the supplied compound and operating conditions before use.
Published temperature range
FVMQ — −60°C
A specific FVMQ compound (70 Shore A nominal) is listed down to −60°C. This is a temperature-range reference, not a D2137 result.
Its ASTM D2137-94 Method A report records no cracking at −55°C after 3 minutes (T-50 specimen; methanol coolant). No TR10 value is reported.
Reported brittleness test
HNBR — −40°C
A specific HNBR compound (70 Shore A nominal) showed no cracking at −40°C under ASTM D2137-11 Method C.
Test conditions: 3 minutes at −40°C, T-50 specimen and isopropyl alcohol coolant. This is not a universal HNBR sealing limit or a TR10 result.
Recommended service temperature
GLT-Type FKM — −40°C
A specific black, peroxide-cured GLT-type FKM compound (75 Shore A nominal) has a published recommended service-temperature lower limit of −40°F (−40°C).
The published reference is not a D2137 or TR10 result; corresponding low-temperature test results and conditions are not provided.
03 / LOW TEMPERATURE
Understanding Low-Temperature Performance: Brittleness vs. TR10
A published temperature range, a brittleness test result and a TR10 value answer different questions. Compare the specific compound and test conditions before using any of them for seal selection.
ASTM D2137 — Low-Temperature Brittleness
A cooled specimen is subjected to impact under specified conditions and examined for fractures or cracks. A pass at one stated temperature describes that test; it does not by itself establish the exact brittleness point or minimum service temperature. Passing does not confirm leak-tight sealing or adequate elastic recovery in a gland.
ASTM D1329 / TR10 — Temperature Retraction
A specimen is stretched, cooled while held in extension, then released and warmed under controlled conditions. TR10 is the temperature at which it recovers 10% of its imposed extension. This helps compare low-temperature elastic recovery, but does not independently establish a finished seal’s operating limit.
Why the values are not interchangeable: the −40°C GLT-type FKM reference above describes a recommended service temperature, not a published D2137 pass or TR10 value. A range recommendation cannot be converted into a test result, and a brittleness pass cannot demonstrate the recovery and contact force needed to maintain sealing.
Static and dynamic seals need different reviews. A static seal may retain contact through its installed squeeze, while movement or pressure changes require the material to recover and follow changing surfaces. A static temperature reference therefore does not establish dynamic or cold-start suitability; neither test alone guarantees performance in either arrangement.
For a FLUID selection discussion, share minimum and cold-start temperatures; continuous operation, short-exposure duration and frequency, and thermal cycling; exact media and concentration; pressure and pressure cycling; static or dynamic motion and speed; gland dimensions, squeeze and clearances; and the current compound, hardness and leakage history where available.
04 / LOW TEMPERATURE
How We Support the Review
We review candidate compounds, available supplier documentation and the sealing arrangement against your operating and cold-start conditions. Any missing evidence or application-specific testing needs are identified before suitability is confirmed.
Continuous operation and short exposures are reviewed separately, including duration and frequency, cold starts and temperature cycling. A brief exposure is not automatic permission to exceed a material limit. Media, pressure, motion, gland geometry, compression and clearances are reviewed as parts of the same sealing system.
This page addresses ordinary low-temperature O-ring requirements. It does not establish a temperature rating for any product or replace application-specific validation.
05 / REVIEW
Share What You Already Have
You do not need a complete specification to begin. Send what is available, and we will clarify the next information needed.
- 01
Minimum operating and cold-start temperatures, duration and temperature cycling.
- 02
Continuous operating conditions and short exposures, including duration and frequency.
- 03
Sealed media, pressure and static or dynamic operation.
- 04
Dimensions, gland details, drawings or sample information.
- 05
Current compound or part reference, service history and reason for replacement.
06 / RELATED PATHS
Continue the technical discussion
07 / TECHNICAL REVIEW FAQ
Start with what you have
Can I start without a drawing?
Yes. A sample, dimensions, photo, part number, or a description of the sealing issue can provide the starting point.
What information helps the review?
Share the information available, such as media, temperature, pressure, motion, seal geometry, or operating history. Missing information can be identified during the review.
What happens after I send a requirement?
We review the available requirement, clarify the next information needed where relevant, and respond with the appropriate next step.
NEXT STEP
Discuss Your Low-Temperature O-Ring Requirement
Whether you have an existing specification, a cold-start concern or a new low-temperature application, start with the information you have.
Request a Technical Review
Initial response within 12 hours.