EPDM O Ring Cord – Custom Extruded Rubber Cord for Reliable Industrial Sealing
Introduction
Our EPDM O Ring Cord is a high-performance elastomeric sealing material designed for manufacturers and engineers who need custom-sized O-rings on demand. Produced through precision extrusion using premium EPDM rubber, this cord can be cut and vulcanized into endless O-rings to match your exact requirements-whether for automotive systems, building hardware, water handling equipment, or general industrial sealing.
With outstanding resistance to weathering, UV, ozone, steam, and a wide range of chemicals, EPDM O Ring Cord delivers long-lasting performance even in harsh outdoor or high-temperature environments. As a professional custom and standard O-ring manufacturer and exporter, Xiamen Jinshun Sealing Technology Co., Ltd. provides bulk supply, OEM/ODM services, and custom formulations for global brand partners.
EPDM O Ring Cord Product Overview
Our EPDM O Ring Cord is engineered for applications that require long-term sealing stability. Thanks to the unique molecular structure of EPDM (Ethylene Propylene Diene Monomer), the cord offers:
- Exceptional resistance to weather, ozone, and aging
- Strong compatibility with water, steam, mild acids/alkalis
- Superior elasticity and compression-set performance
- Consistent sealing under both static and dynamic conditions
This makes EPDM rubber cord a preferred choice in industries where durability and outdoor stability are crucial.
Technical Specifications of EPDM O Ring Cord
| Parameter | Value / Range | Description |
|---|---|---|
| Material | EPDM / EPM | Highly weather-resistant elastomer |
| Temperature Range | −50°C to +150°C (short peak +175°C) | Suitable for extreme hot and cold environments |
| Hardness (Shore A) | 60–90 (70/80 standard) | Adjustable based on sealing pressure |
| Color Options | Custom | Black standard; other colors available |
| Size Availability | Custom extrusion | Standard diameters + OEM sizing |
| Tensile Strength | ≥10 MPa | Ensures tear and pull resistance |
| Compression Set | ≤25% (100°C × 22h) | Maintains long-term sealing resilience |
| Dimensional Tolerance | AS568 / ISO 3601 | Compatible with global O-ring standards |
| Origin | China | Manufactured by Xiamen Jinshun Sealing |
Why Choose EPDM O Ring Cord?
1. Superior Weather & UV Resistance
Unlike NBR or natural rubber, EPDM maintains elasticity under long-term exposure to sunlight, ozone, and outdoor conditions. Ideal for automotive and construction applications.
2. Wide Temperature Resistance
Performs reliably from −50°C cold climates to +150°C continuous heat, with short-term peaks up to +175°C.
3. Excellent Chemical Compatibility
Safe for use with:
- Water & steam
- Mild acids & alkalis
- Polar solvents
(Not recommended for strong oxidizing agents.)
4. Stable Mechanical Properties
High tensile strength, low compression set, and consistent extrusion accuracy make EPDM rubber cord suitable for mission-critical sealing tasks.
5. Made for Custom O-Ring Production
EPDM cord can be easily cut, bonded, and vulcanized into endless O-rings-perfect for maintenance operations and custom machinery.
Installation & Maintenance Tips
Before Installation:
- Clean the sealing groove
- Remove burrs/impurities
- Ensure the EPDM O-ring cord surface is smooth and undamaged
During Installation:
- Avoid over-stretching or twisting the cord
- Ensure uniform seating in the groove
- For vulcanized joints, check bonding strength (tensile test recommended)
Maintenance:
- Inspect regularly for compression set and wear
- Shorten inspection cycles in corrosive environments
Industries & Applications
Automotive Industry
Door systems, sunroof sealing, HVAC seals, coolant systems
Construction & Building Hardware
Window/door sealing, waterproofing systems, façade sealing
Water Treatment & Plumbing
Pump systems, pipe flanges, filter housings, valves
General Industrial Machinery
Static and dynamic sealing in equipment requiring long-term durability
Quality Control
At Xiamen Jinshun Sealing, we follow strict quality inspection procedures:
- Raw material verification
- Precision extrusion monitoring
- Hardness and tensile testing
- Compression-set testing
- Dimensional accuracy inspection
Every batch undergoes detailed QC to ensure consistent performance for OEM and industrial customers worldwide.
Our Advantages
- 22+ years of manufacturing experience in silicone & rubber sealing components
- One-stop custom service: formulation, extrusion, bonding, packaging
- Support for OEM/ODM production for global brands
- Fast delivery and bulk wholesale pricing
- Professional engineering support for complex sealing projects
FAQ
1. Where is your factory located?
Our factory is at No. 26-27, Siming Industrial Zone, Meixi Road, Tong'an District, Xiamen, Fujian, China.
2. What is your typical delivery time?
Standard production time is around 15 working days. Larger or customised orders may vary slightly depending on season and volume.
3. What rubber materials can you produce?
We manufacture O-rings and sealing parts in EPDM, NBR, silicone, FKM, FVMQ, HNBR, ACM, AEM, NR, SBR, IIR, CR, and more.
Partner with EPEM O Ring manufacturer
Looking for a reliable EPDM O Ring Cord manufacturer with stable quality, competitive pricing, and fast delivery?
👉 Contact Xiamen Jinshun Sealing Technology today for wholesale pricing, OEM/ODM service, and free samples.
Our engineers can help you choose the right EPDM formulation and cord size for your application.
