ISO 3601 Excellent Weathering Resistance EPDM Rubber O Rings Seals for Industrial Applications
EPDM Rubber O-Rings: English Introduction
EPDM Rubber O-Rings are sealing components made from Ethylene Propylene Diene Monomer (EPDM), a synthetic rubber known for its excellent resistance to weathering, ozone, UV radiation, and extreme temperatures. These O-rings are widely used in various industries due to their durability and chemical stability.
Key Features:
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Weather & Ozone Resistance: Ideal for outdoor applications, as EPDM resists degradation from sunlight and atmospheric conditions.
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Temperature Resistance: Performs well in a broad range, typically from -50°C to +150°C (-58°F to +302°F).
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Chemical Resistance: Resists water, steam, alkalis, acids, and polar solvents, but not recommended for petroleum-based oils or fuels.
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Flexibility & Elasticity: Maintains sealing properties even in dynamic applications.
Common Applications:
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Automotive: Cooling systems, brake systems, and HVAC components.
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Plumbing & HVAC: Water seals, gaskets, and pipe connections.
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Electrical: Insulating seals for enclosures exposed to moisture.
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Industrial: Seals for pumps, valves, and hydraulic systems (non-oil applications).
Advantages Over Other Elastomers:
✔ Better heat and steam resistance than Nitrile (NBR).
✔ Superior ozone/weather resistance compared to Natural Rubber.
✔ More cost-effective than Silicone for many applications.
EPDM O-rings are a reliable choice for sealing in harsh environments where oxidation, water, or temperature fluctuations are concerns. For oil or fuel exposure, alternative materials like Nitrile (NBR) or Fluorocarbon (FKM) are recommended.
Technical Parameters:
Material |
EPDM |
Oil Resistance |
Fair |
Temperature |
-50~200 ℃ |
Temperature Resistance |
-40-170℃ |
Abrasion Resistance |
Good |
Oem |
Accept OEM |
Temperature Range |
-40°C To 120°C |
Elongation At Break |
300% |
Tear Resistance |
Good |
For color , we can make as customers' requirements .Below table is the colorful o rings we made.If you need colored o rings , you can give me pantone number .
We can also produce Automotive Rubber Seals ,Connector Rubber Seals ,Power Tool Rubber seals ,Valve
Rubber Seals ,Pipe Rubber Seals ,Semiconductor Rubber Seals ,Hydraulic Pneumatic Rubber Seals ,Pump
Rubber Seals ,Oil and Gas Seals ,Food Grade Rubber Seals ,Medical Rubber Seals ,Chemical Equipment
Rubber Seals ...etc.






Our Factory
1. Since 2006, focus on rubber seals, especially for auto parts
2. Certificates: ISO9001, IATF16949, ISO14001, ISO45001,ISO 13485
3. Two factories, more than 18000㎡,clean room 600㎡, with 300 workers.
4. Molds > 10000 sets, especially o rings, about 5000 sets.
5.O-ring series covers American standard (AS568), Japanese standard (JIS), national
standard(GB), and produces a large number of customized non-standard parts.
6. Material: NBR, FKM, SIL, EPDM, CR, NR, PU, HNBR, FFKM, SBR .The rubber materials
used meet the requirements of ROHS2.0 and REACH235.
7. Material Certificates: FDA, ROHS, REACH, UL157, CP65 WRC, EN549,EN45545.
8. Products are widely used in automotive parts, electronic connectors, valves, pneumatics,
power tools, new energy, medical equipment, electronic products and other fields.
9. company has introduced HRP, ERP and other systems since its inception.
10. The company's labor cost, raw material procurement, production process and
product quality were comprehensively and scientifically controlled.



Our strength:
PROFESSIONAL OEM & ODM 30+ YEARS OF RUBBER SEALING MANUFACTURER
☆ PROFESSIONAL OEM & ODM 30+ YEARS OF RUBBER SEALING MANUFACTURER
☆ FULL RANGE OF MOLDS OVER 10,000+
☆ PROFESSIONAL TEAM PROVIDE EFFICIENT TRADING SERVICE
☆ STRICT QUALITY CONTROL--QUALITY GUARANTEE
☆ OWNED A TESTING LABORATORY WITH SOPHISTICATED TEST EQUIPMENT
☆ ADVANCED EQUIPMENTS: 50+ CURING MACHINE 8 CCD AUTOMATIC INSPECTION MACHINE 8 ALL-IN-ONE MACHINE
Progress

Cooperative partner
Ruichen company have cooperated with many superior customers as below , we have complete system and excellent productivity
to serve for you
Our Advantage:
We provide service of rubber manufacture technology consultation and product R&D (OEM&ODM)
1. cheap mold fee.
2. rubber molding for kind of size/shape, possible to make.
3. custom personalise logo accept
4. over 10000 kind of Custom Molded Rubber establishment and the consummation.
5. various materials:Silicone, EPDM, NBR, FKM(Viton), HNBR, NR, Neoprene(CR), SBR, MPU, etc
6. different hardness: 30 to 90 Shore A
7. various colors: translucent, black, white, blue, green, red, etc.
International exhibition




Why RUICHEN?
Many big companies select RUICHEN for their rubber seals and customized rubber parts because we always
satisfy them in quality, price, delivery, service, etc. At the same time, we also attach great importance to the
small customers in niche markets.Whether your purchase quantity is big or small, you are our valuable partners.
High Quality
We continue to manufacture high-quality products for all customers and pursue 100% customer satisfaction,
which has become one of our core competencies.
Profession
We have rich experience in materials, products, and production and excellent international trade and language
communication skills.
Best Services
From quoting, sampling, production, and shipping to after-sales, our sales will provide you with the best service
so that you can rest assured completely.
10000+ Projects Delivered
Over 10K projects have been sent to our customers worldwide in recent years, and we have received countless
positive comments.
Low Price
Our customers can obtain maximum profits through the ISO management system and intelligent manufacturing
to reduce our costs continuously.
Massive Capacity
Our in-house facilities allow us to get your projects done fast. And thanks to our strong relationship with rapid
materials partners, our capacity is not limited.
Fast Delivery
Unlimited capacity, experienced engineers, and a flexible production system allow us to create your seals and
production parts in a short period.
1000+ Happy Customers
We aim to keep every customer happy with reliable quality, fast turnaround, and excellent services. We want all
our new customers to become long-term customers.