Factory Design High Quality Heat Resistant Silicone Rubber O-Rings

• Customization: Available
• Type: O Ring
• Material: NBR, HNBR, EPDM, FKM, Sir
• Combination Washer Structure: O Ring
• Combination Washer Packaging: All Inclusive
• Spring Washer Type: Standard
• Density: 1.0-2.0g/cm3
• Tolerance: DIN ISO 3302-1, Rma, GB/T3672
• Working Temperature: -40~+350 Degree
• Hardness: 20 ~90 Shore a
• Transport Package: Plastic Bag & Carton Box
• Specification: 400x300x300mm
• Trademark: Customization
• Origin: Shenzhen China
• HS Code: 4016999090
• Production Capacity: 1000000PCS/Year

Product Description

High-quality heat-resistant silicone rubber O-rings for industrial applications, precise factory design ensures optimal performance in extreme conditions. Below are the key considerations for manufacturing and selecting these specialized seals

Material Properties of Heat-Resistant Silicone (VMQ)

• Temperature Range:

  • Standard: -60°C to +230°C (short-term up to 300°C).

  • Superior to NBR, EPDM, and FKM in ultra-high heat scenarios.

• Advantages:

  • Excellent flexibility at low temperatures.

  • Resistant to oxidation, UV, and ozone.

  • Non-reactive with water, steam, and mild chemicals.

• Limitations:

   

  • Poor resistance to fuels, oils, and strong acids/alkalis (consider FKM for oil exposure).
    
    Factory Design & Customization Options

    Dimensions & Tolerances

  • Standard Sizes: AS568, ISO 3601, or custom ID/OD/cross-section.

  • Precision Tolerance: ±0.10mm for critical hydraulic/pneumatic seals.
    
    Hardness (Shore A)

  • Standard: 50°A to 80°A (softer for static seals, harder for dynamic applications).
    
    Reinforcement (For Extreme Conditions)

  • Fiberglass/Polyester Insert: Enhances tear resistance at high temps.
    
    Surface Finishes

  • Smooth/Glossy: Reduces friction in dynamic seals.

  • Textured: Improves grip in static applications.

  • Metal Case Encapsulation: For combined sealing and mechanical stability.

 

Brand Name	customized brand
Product Name	O ring
Material	silicone FKM NBR
Property	Low temperature resistance,heat resistance, oxygen resistance etc
Color	colored
Hardness	30-90 Shore A or special
MOQ	1000PCS
Samples	Free samples are available when we have inventory.
Package	Inner: plastic bag, outer: carton box or as your requirements
Payment	L/C,T/T,Paypal,D/A,D/P,Western Union
Certificate	TS16949,ISO9001,ROHS,REACH
Delivery time	Usually 20 days after receiving your advance payment.
Application	Automobiles,Toy, Medical appliance,Electronic field, Industrial machine & equipment, cylindrical surface static sealing,flat face static sealing, vacuum flange sealing, triangle groove application, pneumatic dynamic sealing ,Medical equipment industry, heavy machinery, excavators, etc.

Company Profile
We are a specialized rubber parts manufacturer with over 30 years of manufacturing experience. Our company mainly produces rubber parts for medical appliances, household appliances, electronic products, automobiles and toys.

Covering an area of 3500 square meters, we own over 200 staff and workers and our monthly production output reaches 30 tons.We have always stuck to the quality policy that customer is No.1 and quality comes first with scientific management, continuous improvement and sustained operation.

We insist in providing our clients with perfect products and best services. The products we produced can work in different areas and climates according to your specific requirements. We believe with stable and sincere cooperation and continuous improvement, our customers will enjoy the best service as stable supply, quality assurance and on-time delivery.


FAQ

Q: Are you trading company or manufacturer ?
A: We are manufacturer.
Q: How long is your delivery time?
A: Generally 3-7 days for standard sealing products; and 15-30 days for big order and custom non-standard products.
Q: Do you provide free samples? 
A: Yes, we offer free sample while customer need pay for the freight charge.
Q: Which Payment way is workable?
A: Irrevocable L/C, Cash, PayPal, Credit card and T/T money transfers.
B: 30% T/T deposit in advance, 70% balance before shipment after presentation of ready cargo.
C: L/C ( Irrevocable LC at sight: Order amount over USD100,000)
Q: What is your standard packing?
A: All the goods will be packed by carton box and loaded with pallets. Special packing method can be accepted when needed.
Q: How to select the raw compound for my application?
A: With years of experience working with a variety of material, we can help select the material that will best suit your needs while keeping material costs in mind.
Q: Do you use any international standards for the rubber products?
A: Yes, we mainly use ASTM D2000 standard to define the quality of the rubber materials, tolerances as per ISO3302, ISO2768, etc.
Q: Can you supply different color materials?
A: Yes, we can produce custom molded rubber and silicone rubber products in different colors, the color code will be required in case of an order.
Q: What materials are available to produce from your side?
A: NBR, EPDM, SILICONE, FKM, NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc.