Products Description
Our Seals O-Rings Rubber series delivers reliable, durable, and precision-engineered sealing performance for a wide range of industrial applications. Manufactured with premium elastomers and crafted to international standards, these O-Rings ensure long-lasting protection against leakage, pressure loss, and chemical exposure.
Key Features
Premium Rubber Materials：
Our O-Rings are available in a range of high-performance elastomers, including ：
NBR, SBR, NR (Natural Rubber), CR (Neoprene®), EPDM, EPDM (P-Cure), IIR, XNBR, PU, HNBR, ACM, SI (VMQ), FSI (FVMQ), FKM (Viton®), PTFE (Teflon), FFKM, and TPR.
Our O-Rings are available in a range of high-performance elastomers, including:
Premium Rubber Materials：
Available in multiple high-grade elastomers:
NBR (Nitrile) – Excellent oil & fuel resistance
EPDM – Superior weather & heat resistance
FKM / Viton® – Outstanding chemical & high-temperature resistance
Silicone – Food-grade option with low-temperature flexibility
HNBR – Enhanced strength & oxidation resistance
Each material is carefully selected to match different industrial requirements.
Material Characteristics
Endless Material Choices: Choose from a wide variety of materials such as NBR, EPDM, FKM (Viton®), PTFE, and more, each carefully selected to match your environment's demands.
Our O-Rings are available in a range of high-performance elastomers, including ：
NBR, SBR, NR (Natural Rubber), CR (Neoprene®), EPDM, EPDM (P-Cure), IIR, XNBR, PU, HNBR, ACM, SI (VMQ), FSI (FVMQ), FKM (Viton®), PTFE (Teflon), FFKM, and TPR. :
|
Material |
Abbr. |
Hardness (Shore A) |
Temp Range |
Key Features |
Advantages |
Limitations |
Typical Applications (Concise) |
|
Nitrile Rubber |
NBR |
30–90 |
-40°C ~ +120°C |
Oil/fuel resistance |
Affordable, versatile. |
Poor ozone/weather resistance. |
Hydraulic systems, General machinery. |
|
Styrene-Butadiene |
SBR |
40–80 |
-50°C ~ +100°C |
Good resilience |
Low cost, elasticity. |
Poor oil/solvent resistance. |
Non-petroleum brake fluid, Dampeners. |
|
Natural Rubber |
NR |
30–80 |
-60°C ~ +80°C |
Highest tensile strength |
Excellent elasticity. |
Poor heat resistance, zero oil resistance. |
Shock mounts, Elastic gaskets. |
|
Chloroprene |
CR (Neoprene®) |
50–80 |
-40°C ~ +100°C |
Weather/refrigerant resistance |
Good general-purpose. |
Poor resistance to aromatic oils. |
Refrigeration, Marine sealing. |
|
Ethylene Propylene |
EPDM |
40–90 |
-50°C ~ +150°C |
Weather/Water/Steam resistance |
Excellent outdoor performance. |
Poor oil/fuel resistance. |
Plumbing, Brake fluid, HVAC systems. |
|
EPDM Peroxide Cure |
EPDM (P-Cure) |
60–90 |
-50°C ~ +150°C |
Higher thermal stability |
Reliable for hot water/steam. |
Poor oil/fuel resistance (same as std EPDM). |
Automotive cooling, Steam applications. |
|
Butyl Rubber |
IIR |
40–75 |
-40°C ~ +120°C |
Excellent gas impermeability |
Suitable for vacuum. |
Poor resistance to petroleum oils/solvents. |
Vacuum seals, Pharmaceutical stoppers. |
|
Carboxylated Nitrile |
XNBR |
70–95 |
-30°C ~ +100°C |
High abrasion resistance |
Excellent for dynamic sealing. |
Lower flexibility than NBR. |
High-pressure seals, Industrial rollers. |
|
Polyurethane |
PU |
60–95 |
-40°C ~ +85°C |
Extreme mechanical strength |
Preferred for high-pressure. |
Poor resistance to hot water/steam (hydrolysis). |
High-pressure hydraulic cylinders. |
|
Hydrogenated Nitrile |
HNBR |
50–90 |
-40°C ~ +150°C |
Heat/oil/high strength |
Superior durability. |
Higher cost than standard NBR. |
Automotive A/C, Oilfield equipment. |
|
Polyacrylate |
ACM |
50–80 |
-20°C ~ +150°C |
Resistance to hot oil |
Suits transmission fluids. |
Poor low-temperature flexibility, poor water resistance. |
Automotive transmissions, Engine seals. |
|
Silicone |
SI(VMQ) |
5–90 |
-60°C ~ +230°C |
Wide temp range, food-grade |
Excellent high/low-temp. |
Low mechanical strength, poor oil resistance. |
Food/beverage, Medical devices. |
|
Fluorosilicone |
FSI (FVMQ) |
40–80 |
-60°C ~ +180°C |
Oil and low-temp resistance |
Suitable for aerospace fuel. |
Poor tear strength, high cost. |
Aircraft fuel systems, Low-temp oil seals. |
|
Fluorocarbon |
FKM (Viton®) |
50–90 |
-20°C ~ +250°C |
Excellent heat/chemical/oil resistance |
Suitable for corrosive fluids. |
Higher cost, poor performance with hot water/steam. |
High-temp auto engines, Chemical pumps/valves. |
|
Polytetrafluoroethylene |
PTFE (Teflon) |
50-65D |
-200°C ~ +260°C |
Extreme chemical resistance |
Non-Elastomer, resists most chemicals. |
No elasticity (requires mechanical energizer). |
Chemical equipment seals, Bearings. |
|
Perfluoroelastomer |
FFKM |
60–90 |
-30°C ~ +320°C |
Universal Chemical Resistance |
Ultimate reliability in extreme heat. |
Extremely high cost. |
Chemical processing, Semiconductor. |
|
Internally Lubricated |
- |
Varies |
Varies |
Contains internal lubricant |
Reduces friction, aids assembly. |
Higher formulation cost, lubricant may leach out over time. |
Automated assembly lines, Pneumatic cylinders. |
|
Thermoplastic Rubber |
TPR |
5A-85D |
-50°C ~ +135°C |
Combines plastic/rubber traits |
Recyclable, easy to mold. |
Limited temperature range and chemical resistance. |
Consumer goods, Non-critical sealing. |
Product Applications
Automotive: Seals automotive parts like engines, air conditioning, and fuel systems.
Medical Devices: Used in medical pumps, valves, and other equipment for safe and reliable sealing.
Food & Beverage: FDA-approved for use in food processing and packaging systems.
Aerospace: Provides reliable seals for aerospace components under extreme temperatures and pressure.
Electronics: Seals electrical connectors and enclosures, protecting against dust and moisture.
Oil and Gas: Used in pumps and valves in high-pressure systems.
Why Our O-Rings Stand Out
Our O-Rings: Burr-Free, Smooth Surface, Precision Molded
Our O-Rings are manufactured with high-precision molds and strict deburring processes to ensure:
A clean, smooth surface means more reliable and durable sealing performance.
Low-Quality O-Rings: Burrs, Rough Surface, Poor Accuracy
Low-grade O-Rings often suffer from:
Available Surface Treatments
To enhance performance and extend service life, our O-Rings are available with multiple advanced surface treatment options:
• Teflon (PTFE) Surface Coating
A thin PTFE coating that significantly reduces friction, improves chemical resistance, and enhances installation ease. Ideal for applications requiring smooth movement or exposure to aggressive chemicals.
• Lubricant Spray Coating
A uniform lubricant finish that improves assembly efficiency, prevents sticking, and reduces startup wear. Commonly used in dynamic sealing systems, hydraulic components, and precision assemblies.
• Teflon (PTFE) Encapsulation
A solid PTFE outer jacket combined with an elastomer core. This structure provides exceptional chemical resistance, wide temperature capability, and superior durability-perfect for extreme or corrosive environments.
10,000+ Molds Available｜ No MOQ ｜In-Stock Inventory
1.10,000+ Molds Available – Extensive mold library to meet diverse size and material requirements.
[2.No](http://2.no/) MOQ, Starts from One Piece – Flexible customization from sample testing to bulk production.
3. In-Stock Inventory - Standard sizes in stock, ensuring quick shipment, Fast Global Delivery
Product Features:
Customization Options: Our O-Rings are fully customizable. Whether you need a specific size, shape, hardness, or color, we can manufacture O-Rings that are perfectly suited for your application. Choose from a wide range of materials and designs to create an O-Ring that fits your exact needs.
Precision Engineering: Each O-Ring is manufactured with precision to ensure the highest level of quality. Our advanced production process ensures that every O-Ring meets the strictest standards for sealing performance.
Factory Direct Advantages
Packing & Delivery
|
MOQ |
1 pcs |
|
Lead Time |
- In stock: Shipped within 3 days |
|
Port |
China Xiamen |
|
Shipping Methods |
Express (DHL, FedEx, UPS), Air, or Sea |
|
Sample Policy |
Samples available; customer should pay freight cost |
Qualification Certificate
Contact US
Xiamen Best Seal Imp and Exp Co.,Ltd
Tel: +86-592-5782315
Mob: +8618950159396
Email: [yunying2@bestsealhk.com](mailto:yunying2@bestsealhk.com)
Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China
Why choose us?
- We are a Chinese factory that specializes in producing high-quality Solid O-ring products.
- Our Seals O Rings Rubber is novel in design with exquisite craftsmanship and strictly controlled to bring a high quality experience to our customers.
- We understand the value of a good Solid O-ring, which is why we only produce high-quality products.
- We believe that employees who are brave enough to deny themselves, insist on improvement and innovation, and continuously create outstanding performance are the outstanding talents of the company.
- Our Solid O-ring products are widely recognized for their quality and effectiveness.
- Good quality is factory's existence, focus on customers' demand is the source of company survival and advancement.
- Our Solid O-ring products have a proven track record of reliability and durability.
- We earn the respect of our customers by continuously listening to and meeting their needs, guiding and exceeding their needs.
- We are committed to providing our customers with reliable and durable Solid O-ring products.
- "Professional quality, low price, good quality and considerate service" is our consistent purpose. We sincerely look forward to working with you to create a better future.
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