Nitrile vs Viton - What is the Difference?

Nitrile vs Viton - What is the Difference?

 Nitrile (popularly referred to as NBR or Buna-N) and Viton® (Fluorocarbon rubber).

INTRODUCTION

 Both materials are a great choice for general industrial use, they offer excellent compression set resistance and have a versatile set of properties list of applications and properties.  However, both these seals have different properties, types of application and characteristics. When considering the use of Nitrile vs Viton® here are some points to consider:

Nitrile O Rings

 Temperature: Nitrile is effective within a temperature range of 30°C to 100°C.  General Suitability: Used for general purpose applications requiring resistance to aliphatic hydrocarbons, petroleum oils, water and hydraulic fluids.

Nitrile Rubber

 Environmental Properties: Nitrile vs Viton® is not resistant to degradation from weather and ozone exposure. Designed to resist most oils and lubricants, more importantly petroleum based lubricants, these seals have other benefits, such as superior abrasion and tear resistance, making them suitable for heavy duty industrial applications.  Applications: A cost effective product, that works well with constrained temperatures and chemical resistance. 

Viton

 Temperature: Viton® seals can withstand temperatures up between -20°C to 210°C. Viton® seals are prone to failure below 15°C in dynamic applications, as they become inflexible and hard.

Viton Rubber

 General Suitability: Viton® is best suited for diverse sealing jobs that require high temperature and chemical resistance.

Applications involving contact with petroleum oils, acids, silicone fluids and gases, halogenated hydrocarbons (trichloroethylene and carbon tetrachloride), aromatic hydrocarbons usually have seals and o rings made of Viton®.  Environmental Properties: Viton® O-rings and seals have a wide range of chemical resistance (involving mineral acids, fuels, and oils) and this material is also highly resistant to oxidation, UV exposure, fungus, weather, ozone, and mould.

 This makes Viton® far superior to Nitrile in these regards. They are also designed to resist most oils and lubricants, more importantly petroleum-based lubricants.  Applications: Viton® functions well in different automotive, chemical and appliance-processing industries.  Cost: As an approximate guide, Viton® compound is ten to fifteen times more expensive than NBR. However, we stock both NBR and Viton O-rings and seals AS/BS, metric, French, German and other metric series at Polymax.

Conclusion

 Tuberelastomers, one of the leading Nitrile NBR O Ring Seals Manufacturers and also Viton O Ring Seals Manufacturers. They have quality products at best prices. Properly known as one stop rubber product moulded product manufacturer and supplier for all your industrial application.