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.
| ميزة | حلقة سيليكون O | حلقة O من مادة NBR |
|---|---|---|
| مدى درجة الحرارة | -50 درجة مئوية إلى 250 درجة مئوية | -40 درجة مئوية إلى 120 درجة مئوية |
| الأفضل لـ | Heat, food, medical | Oil, fuel, hydraulics |
| المقاومة الكيميائية | UV, ozone, dry heat | Oil, fuel, water |
| يكلف | أعلى | أكثر بأسعار معقولة |
Explore Silicone O-Ring specs | Learn more about NBR performance
Which O-ring material performs better in heat or oil?
- يستخدم حلقات السيليكون for high-temperature, sterile, or outdoor conditions.
- يستخدم حلقات NBR O in fuel, hydraulic, or lubricated environments.
| ملكية | سيليكون | ن بي آر |
|---|---|---|
| مقاومة الحرارة | ✅ Excellent (up to 250°C) | ❌ Moderate (up to 120°C) |
| مقاومة الزيت | ❌ فقير | ✅ ممتاز |
| مقاومة الطقس | ✅ ممتاز | ❌ فقير |
How do industries apply Silicone and NBR O-rings?
حلقات السيليكون:
- الأجهزة الطبية
- Food & beverage systems
- Aerospace assemblies
حلقات NBR O:
- Fuel injection systems
- الأسطوانات الهيدروليكية
- Automotive gaskets
Compare NBR to FKM O-Rings for more oil-based solutions.
What factors should you consider before choosing?
Use this simple checklist:
-
درجة حرارة:
- 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 أداة صانع الحلقات الدائرية.
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
نصيحة: يستخدم this guide to understand sealing fundamentals.
خاتمة
Silicone and NBR serve different needs—match material to environment and you’ll seal with confidence.
Choose the right O-ring for your system
📩 البريد الإلكتروني: [email protected]
📞 واتساب: +86 17622979498
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