Description: Standard Nitrile is also known as Buna-N. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidizing effect.

Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight.

Chemistry: Copolymer of butadiene and acrylonitrile. By varying the acrylonitrile content, elastomers with improved oil/fuel swell or with improved low-temperature performance can be achieved. Specialty versions of carboxylated high-acrylonitrile butadiene copolymers (XNBR) provide improved abrasion resistance. And hydrogenated versions of these copolymers (HNBR) provide improve chemical and ozone resistance elastomers.

Trade Names: CHEMIGUM ® , HYCAR ® , PARACRIL ® , PERBUNAN ®

ASTM D1418 Designation: NBR, XNBR, HNBR

ASTM D2000/SAE J200 Type, Class: BF, BG, BK, CH

Temperature Range: –55° to 120°C (–65° to 248°F)

Typical Uses: Ion Implant, PVD

* Buna-N is available in a wide range of Durometers and Colors,
   as well as many compound variations designed to meet specific applications.

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