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.
| Caracteristică | Inel O din silicon | Inel O NBR |
|---|---|---|
| Interval de temperatură | -50°C până la 250°C | -40°C până la 120°C |
| Cel mai bun pentru | Heat, food, medical | Oil, fuel, hydraulics |
| Rezistenta chimica | UV, ozone, dry heat | Oil, fuel, water |
| Cost | Superior | Mai accesibil |
Explore Silicone O-Ring specs | Learn more about NBR performance
Which O-ring material performs better in heat or oil?
- Utilizare Inele O din silicon for high-temperature, sterile, or outdoor conditions.
- Utilizare Inele O NBR in fuel, hydraulic, or lubricated environments.
| Proprietate | Silicon | BNR |
|---|---|---|
| Rezistență la căldură | ✅ Excellent (up to 250°C) | ❌ Moderate (up to 120°C) |
| Rezistenta la ulei | ❌ Sărac | ✅ Excelent |
| Rezistență la intemperii | ✅ Excelent | ❌ Sărac |
How do industries apply Silicone and NBR O-rings?
Inele O din silicon:
- Dispozitive medicale
- Food & beverage systems
- Aerospace assemblies
Inele O NBR:
- Fuel injection systems
- Cilindri hidraulici
- Automotive gaskets
Compare NBR to FKM O-Rings for more oil-based solutions.
What factors should you consider before choosing?
Use this simple checklist:
-
Temperatură:
- 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 Instrument pentru producerea inelelor 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
Sfat: Utilizare this guide to understand sealing fundamentals.
Concluzie
Silicone and NBR serve different needs—match material to environment and you’ll seal with confidence.
Choose the right O-ring for your system
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