Products Description
Insulated Rubber O-Rings are specially engineered sealing components designed to provide not only airtight and watertight sealing but also additional electrical insulation and thermal isolation. They are widely used in systems where conductive materials or temperature transfer must be prevented, ensuring safe, stable, and durable operation.
These O-rings are made from advanced elastomers such as EPDM, Silicone, NBR, FKM, or custom rubber blends with insulating properties, making them ideal for electronics, energy systems, precision instruments, and industrial machinery.

Why Choose Insulated Rubber O-Rings?
1. Excellent Electrical Insulation
The rubber materials exhibit low electrical conductivity, preventing electrical leakage, arcing, or interference - essential for:
Connectors
Sensors
Control panels
Battery systems
2. Effective Thermal Isolation
Insulated rubber helps reduce heat transfer between components, protecting sensitive parts from temperature fluctuations.
3. Strong Environmental Resistance
Depending on the grade, these O-rings may offer:
Weather & ozone resistance
Chemical resistance
Heat resistance
Water & steam resistance
Suitable for both indoor and outdoor equipment.
4. Reliable Mechanical Properties
Engineered for long-term stability:
High elasticity
Low compression set
Good sealing under static and dynamic conditions
5. Customizable for Any Application
We offer full customization:
Hardness: 20–90 Shore A
Materials: EPDM / Silicone / NBR / FKM / HNBR
Colors: Black, red, white, transparent, custom
Sizes: Standard & non-standard
Special coatings: PTFE, silicone oil, or friction-reducing treatments
Material Comparison Table
|
Feature / Material |
NBR |
FKM (Viton®) |
EPDM |
Silicone |
HNBR |
|
Hardness (Shore A) |
30–90 |
50–90 |
40–90 |
5–90 |
50–90 |
|
Temp Range |
-40°C ~ +120°C |
-20°C ~ +250°C |
-50°C ~ +150°C |
-60°C ~ +230°C |
-40°C ~ +150°C |
|
Key Features |
Oil/fuel/grease resistance; good mechanical properties |
Heat, chemical, oil resistance |
Weather, ozone, water, steam resistance |
Flexibility, wide temp, food-grade options |
Heat, oil, chemical resistance, aging resistance |
|
Advantages |
Affordable, versatile, good wear resistance |
Excellent high-temp and chemical resistance |
Excellent outdoor & water system performance |
Excellent low/high temp performance, food-safe |
Superior durability and mechanical properties |
|
Limitations |
Poor ozone/weather resistance |
Expensive, harder to process |
Poor oil/fuel resistance |
Low mechanical strength, expensive |
Cost higher than NBR |
|
Typical Applications |
Automotive seals, hydraulic systems, general machinery |
High-temp automotive, aerospace, chemical industry |
Plumbing, water systems, HVAC, outdoor sealing |
Food & beverage, medical, electrical insulation, extreme temp |
Automotive, industrial hydraulics, oil & gas sealing |
O Ring Applications

They provide reliable sealing performance without deformation or leakage.
Typical Applications:
Plumbing systems: Prevent water leakage in joints and pipes.
Machinery & equipment: Used for hydraulic and pneumatic sealing.
Automotive parts: Suitable for engine, fuel, and brake systems.
Home & garden tools: Replacement parts for Bunnings machinery and DIY projects.
Products Advantages
1. Long Service Life
The combination of high elasticity and chemical resistance ensures stable performance and minimal degradation over time, significantly extending equipment life.
2. Superior Sealing Effect
Even under high pressure and extreme temperature changes, Viton O-rings maintain tight sealing, effectively preventing leakage and reducing maintenance costs.
3. Environmentally Friendly Production
All materials comply with RoHS and REACH standards, ensuring environmental safety during use.

Why Choose US ?

1.10,000+ Molds Available – Extensive mold library to meet diverse size and material requirements.
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
Focus on Quality
•Precise inspection, zero-defect quality, ensuring both delivery time and quality.
•Meets the 125/1008H high-temperature aging test requirements of the new energy industry;
•Withstands commercial cleaner (Alcohols, Alkalis, Oils) test requirements.

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
Add: Unit 522-525, Gaodian Road 6#, Huli District, Xiamen, China
Why choose us?
- We are dedicated to providing our customers with top-quality Solid O-ring products and services.
- We follow the requirements of the laws of production and management, serious discipline and strict requirements.
- Our Solid O-ring products have a wide range of applications, making them suitable for various industries.
- Our company continues to pioneer and innovate, and has received many certifications and honors over the years.
- We offer our customers a wide range of Solid O-ring products to choose from.
- The market is growing so rapidly that all businesses need to continue learning to adapt quickly, and we will certainly be able to do that.
- We collaborate with our clients to understand their specific Solid O-ring needs and deliver customized solutions.
- Since the company's operation, Insulated Rubber O-ring are favored by the market, customers all over the world, we are marching towards the future with a majestic pace.
- We have established a reputation as a leading Solid O-ring manufacturer in the industry.
- We believe that with rich professional service experience and excellent product performance, we will be able to meet your needs best.
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