Ultra High Temp Seals | FFKM High Temperature Sealing Solutions for Extreme Industrial Applications
Ultra High Temp Seals Engineered for Extreme Heat, Aggressive Chemicals, and Critical Industrial Environments
When conventional rubber seals fail under extreme temperatures, aggressive chemicals, or continuous thermal cycling, Ultra High Temp Seals provide the long-term sealing reliability that industrial manufacturers require.
Xiamen Jinshun Sealing Technology Co., Ltd. specializes in manufacturing Ultra High Temp Seals, FFKM O-rings, high temperature rubber seals, and customized sealing solutions for OEMs, industrial equipment manufacturers, chemical processing plants, semiconductor factories, pharmaceutical production, aerospace, energy, and food processing industries.
Manufactured using premium Perfluoroelastomer (FFKM) compounds, our Ultra High Temp Seals combine outstanding heat resistance, exceptional chemical compatibility, low compression set, and long service life, even in the world's most demanding operating conditions.
Whether your equipment operates continuously at 260°C, experiences short-term exposure above 320°C, or requires resistance to aggressive acids, solvents, steam, and oxidizing chemicals, our sealing solutions help reduce maintenance costs, prevent unplanned downtime, and improve equipment reliability.
Why Choose Ultra High Temp Seals?
Industrial sealing failures rarely occur because of temperature alone. Most failures result from the combined effects of:
Continuous high temperatures
Chemical corrosion
High system pressure
Thermal cycling
Steam exposure
Oxidizing environments
Mechanical compression
Aging of conventional elastomers
Standard NBR, EPDM, Silicone, or FKM seals often become brittle, harden, crack, or lose elasticity after prolonged exposure to elevated temperatures.
Our FFKM Ultra High Temp Seals are specifically designed to maintain sealing performance under these harsh conditions.
Key Benefits
Continuous operating temperatures up to 260°C–320°C
Short-term temperature resistance exceeding 350°C
Outstanding resistance to over 1,800 aggressive chemicals
Excellent compression set resistance
Extremely low gas permeability
Superior resistance to steam and hot water
Outstanding oxidation resistance
Long service life under continuous thermal cycling
Suitable for static, dynamic, and vacuum sealing applications
Custom sizes available for OEM equipment
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | Ultra High Temp Seals |
| Material | Premium FFKM (Perfluoroelastomer) |
| Hardness | 75 Shore A |
| Standard | ASTM D1414 |
| Continuous Temperature | 260°C–320°C |
| Short-Term Temperature | Above 350°C |
| Color | Black (Custom colors available) |
| Compression Set | Excellent |
| Chemical Resistance | Outstanding |
| Ozone Resistance | Excellent |
| Steam Resistance | Excellent |
| Vacuum Compatibility | Yes |
| OEM Customization | Available |
| Standard Sizes | AS568, Metric, JIS, Custom |
Mechanical Performance After Long-Term High-Temperature Exposure
One of the biggest concerns for industrial engineers is whether sealing materials maintain their mechanical properties after extended exposure to high temperatures.
Our laboratory testing demonstrates excellent long-term stability.
High Temperature Aging Performance
| Test Duration | Tensile Strength | Elongation at Break | Hardness |
|---|---|---|---|
| Initial | 18.5 MPa | 280% | 75 Shore A |
| 200 Hours | 17.8 MPa (-3.8%) | 265% (-5.4%) | 76 Shore A |
| 500 Hours | 16.9 MPa (-8.6%) | 242% (-13.6%) | 78 Shore A |
| 1000 Hours | 15.7 MPa (-15.1%) | 210% (-25.0%) | 80 Shore A |
Even after 1,000 hours of continuous high-temperature exposure, the material maintains excellent mechanical strength and elasticity, ensuring reliable sealing performance in demanding industrial environments.
Outstanding Leak Tightness Under Pressure
Heat resistance alone is not enough. Industrial seals must continue preventing leakage after prolonged service.
After completing the 1,000-hour aging test, our Ultra High Temp Seal was installed in a simulated chemical reactor under 1.5 MPa pressure.
Leak performance was measured using a helium mass spectrometer.
| Test Condition | Helium Leak Rate |
|---|---|
| Initial | <1 × 10⁻⁹ Pa·m³/s |
| After 1000 Hours | 3.2 × 10⁻⁹ Pa·m³/s |
| Industrial Acceptance Limit | 1 × 10⁻⁷ Pa·m³/s |
Even after prolonged thermal aging, the leak rate remained over 30 times lower than the industrial acceptance limit, demonstrating exceptional sealing integrity.
Real Industrial Success Story
A chemical manufacturer producing ammonium nitrate experienced frequent seal failures in its high-temperature reactor.
Previous Solution
Material:
- Standard FKM O-ring
Operating temperature:
- 280°C
Average service life:
- Approximately 300 hours
Monthly maintenance cost:
- More than RMB 150,000 due to production downtime and frequent seal replacement.
After Upgrading to Jinshun FFKM Ultra High Temp Seals
Average replacement interval:
- Extended to approximately 920 hours
Leakage:
- Remained consistently within acceptable limits throughout the operating cycle.
Annual maintenance savings:
- More than RMB 1.2 million
- Longer maintenance intervals significantly reduced equipment downtime while improving production efficiency.
Typical Applications
Our Ultra High Temp Seals are widely used in industries where ordinary rubber seals cannot survive.
Chemical Processing
- High-temperature reactors
- Acid processing systems
- Solvent handling equipment
- Chemical pumps
- Mixing vessels
Semiconductor Manufacturing
- Plasma processing equipment
- Vacuum chambers
- Wafer fabrication systems
- Dry etching equipment
Oil & Gas
- Downhole tools
- Valves
- Compressors
- Drilling equipment
Aerospace
- Fuel systems
- Hydraulic systems
- Engine sealing
- High-temperature valves
Pharmaceutical Manufacturing
- Sterilization equipment
- Steam systems
- CIP/SIP processes
- Bioreactors
Food Processing
- High-temperature sterilization
- Steam pipelines
- Beverage processing
- Filling equipment
Materials Available
Depending on your operating environment, we offer customized sealing materials including:
- FFKM
- FKM (Viton®)
- Silicone
- EPDM
- HNBR
- NBR
- PTFE Encapsulated Seals
- Custom compound development
Our engineering team helps customers select the most cost-effective material based on temperature, pressure, chemicals, and service life requirements.
Why Global Manufacturers Choose Xiamen Jinshun Sealing Technology
Established in 2002, Xiamen Jinshun Sealing Technology Co., Ltd. is a professional manufacturer of precision rubber sealing products serving customers in more than 50 countries.
Our advantages include:
- ISO 9001:2015 certified manufacturing
- ISO 14001:2015 environmental management
- Advanced molding and testing equipment
- OEM & ODM development
- Custom molds from drawings or samples
- Fast prototype production
- Strict quality inspection
- Stable mass production
- Competitive factory-direct pricing
Our sealing products are widely used in:
- Chemical processing
- Food equipment
- Drinking water systems
- Automotive
- Medical devices
- Electronics
- Industrial machinery
- Renewable energy
Materials comply with international standards including:
- FDA
- NSF
- LFGB
- WRAS
- ACS
- REACH
- RoHS
- PAHS
- UL (selected materials)
Frequently Asked Questions
What are Ultra High Temp Seals?
Ultra High Temp Seals are high-performance sealing components manufactured from advanced elastomers such as FFKM, designed to operate continuously in temperatures exceeding 260°C while maintaining excellent sealing performance.
What is the maximum operating temperature?
Our premium FFKM Ultra High Temp Seals typically operate continuously between 260°C and 320°C, with short-term exposure exceeding 350°C, depending on the application.
Why choose FFKM instead of standard FKM?
FFKM provides significantly higher temperature resistance, superior chemical compatibility, lower compression set, and much longer service life in extreme industrial environments.
Can you manufacture custom sizes?
Yes. We manufacture custom O-rings, seals, gaskets, and molded rubber components according to customer drawings, samples, or international standards.
Which industries use Ultra High Temp Seals?
They are widely used in chemical processing, semiconductor manufacturing, aerospace, pharmaceuticals, food processing, oil & gas, vacuum systems, and industrial automation.
Do you provide OEM and wholesale services?
Absolutely. We support OEM manufacturing, private labeling, global distributors, industrial wholesalers, and equipment manufacturers with customized sealing solutions.
Contact Xiamen Jinshun Sealing Technology Today
Looking for reliable Ultra High Temp Seals, FFKM O-rings, or custom high-temperature sealing solutions?
Our engineering team is ready to help you select the right material, optimize your sealing design, and reduce maintenance costs.
Contact us today to receive:
- Free engineering consultation
- Material selection recommendations
- Custom design support
- Rapid prototype samples
- Competitive factory quotations
- Global OEM & wholesale partnership opportunities
Partner with Xiamen Jinshun Sealing Technology Co., Ltd. to build longer-lasting, leak-free sealing systems for your most demanding industrial applications.
