Nitrile Buna-N (NBR) O-Rings
2025/10/16 14:46:03
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Introduction
Nitrile Buna-N (NBR) O-Rings Material Description
Nitrile Buna-N (NBR) o-rings are one of the most common and widely used sealing materials because of its excellent sealing and mechanical properties at a low cost. Nitrile offers excellent tensile strength, abrasion resistance, tear resistance, and compression resistance. Optimal environments include petroleum oils and fuels, silicone oils and greases, propane, ethylene glycol, butane, vegetable, mineral oils and greases, dilute acids, and water and steam applications (below 212°F).
Acrylonitrile Content
The acrylonitrile (ACN) content of the polymer chains can vary from 18% to 50%. Lower ACN content gives better low-temperature properties but inferior resistance to fuels and polar lubricants. Higher ACN content gives lesser quality low-temperature properties but improves fuels and polar lubricants resistance. Standard NBRs typically have 34% ACN content.
Also Know As:
Nitrile, Buna-N, acrylonitrile-butadiene terpolymer, Breon, Butakon®, Chemigum®, Hycar®.
UNINOVO Seal Products has the expertise and inventory for your nitrile Buna-N (NBR) o-ring applications. For over 20 years, UNINOVO has been the leading engineering, quality, and supply chain choice for both standard and custom sealing applications. A seal, no matter the application, has to do just that.
Nitrile Buna-N (NBR) o-rings are one of the most common and widely used sealing materials because of its excellent sealing and mechanical properties at a low cost. Nitrile offers excellent tensile strength, abrasion resistance, tear resistance, and compression resistance. Optimal environments include petroleum oils and fuels, silicone oils and greases, propane, ethylene glycol, butane, vegetable, mineral oils and greases, dilute acids, and water and steam applications (below 212°F).
Acrylonitrile Content
The acrylonitrile (ACN) content of the polymer chains can vary from 18% to 50%. Lower ACN content gives better low-temperature properties but inferior resistance to fuels and polar lubricants. Higher ACN content gives lesser quality low-temperature properties but improves fuels and polar lubricants resistance. Standard NBRs typically have 34% ACN content.
Also Know As:
Nitrile, Buna-N, acrylonitrile-butadiene terpolymer, Breon, Butakon®, Chemigum®, Hycar®.
UNINOVO Seal Products has the expertise and inventory for your nitrile Buna-N (NBR) o-ring applications. For over 20 years, UNINOVO has been the leading engineering, quality, and supply chain choice for both standard and custom sealing applications. A seal, no matter the application, has to do just that.
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