Choosing between Silicone and NBR O-rings isn’t just a technical decision—it affects system life, cost, and compliance. So, which one should you choose?
Silicone O-rings are ideal for high heat and sterile environments, while NBR O-rings dominate oil-resistant industrial applications.
Let’s compare the differences and use cases to guide your selection.
What’s the difference between Silicone and NBR O-rings?
Silicone resists heat and UV, while NBR excels with oils and fuels. Your environment determines the right fit.
| Tính năng | Vòng đệm silicon | Vòng đệm chữ O NBR |
|---|---|---|
| Phạm vi nhiệt độ | -50°C đến 250°C | -40°C đến 120°C |
| Tốt nhất cho | Heat, food, medical | Oil, fuel, hydraulics |
| Kháng hóa chất | UV, ozone, dry heat | Oil, fuel, water |
| Trị giá | Cao hơn | Giá cả phải chăng hơn |
Explore Silicone O-Ring specs | Learn more about NBR performance
Which O-ring material performs better in heat or oil?
- Sử dụng Vòng đệm chữ O bằng silicon for high-temperature, sterile, or outdoor conditions.
- Sử dụng Vòng đệm chữ O NBR in fuel, hydraulic, or lubricated environments.
| Tài sản | Silicon | NBR |
|---|---|---|
| Khả năng chịu nhiệt | ✅ Excellent (up to 250°C) | ❌ Moderate (up to 120°C) |
| Khả năng chống dầu | ❌ Nghèo | ✅ Tuyệt vời |
| Khả năng chống chịu thời tiết | ✅ Tuyệt vời | ❌ Nghèo |
How do industries apply Silicone and NBR O-rings?
Vòng đệm chữ O bằng silicon:
- Thiết bị y tế
- Food & beverage systems
- Aerospace assemblies
Vòng đệm chữ O NBR:
- Fuel injection systems
- Xi lanh thủy lực
- Automotive gaskets
Compare NBR to FKM O-Rings for more oil-based solutions.
What factors should you consider before choosing?
Use this simple checklist:
-
Nhiệt độ:
- Over 120°C → Silicone
- Under 120°C → Proceed to step 2
-
Media Exposure:
- Oil/fuel → NBR
- UV, dry heat, ozone → Silicone
-
Cost Sensitivity:
- Budget-critical → NBR
- Long-term performance → Silicone
Need custom specs? Try our Dụng cụ làm vòng chữ O.
What do customers say about these materials?
- “NBR O-Rings sealed our diesel pumps perfectly.” – Automotive client
- “Silicone survived 200°C sterilization cycles with no cracks.” – Medical OEM
Mẹo: Sử dụng this guide to understand sealing fundamentals.
Phần kết luận
Silicone and NBR serve different needs—match material to environment and you’ll seal with confidence.
Choose the right O-ring for your system
📩 Email: [email protected]
📞 WhatsApp: +86 17622979498
Related post
- Silicone O-Ring Guide
- Vòng đệm chữ O NBR trong sử dụng công nghiệp
- O-Ring Kits for Mixed Applications
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