Paracril AJ is a copolymer of butadiene and acrylonitrile, hot polymerized with a non-staining stabilizer.

Polymer Name: Acrylonitrile Butadiene Rubber (NBR)

End Uses: Grommets, Hoses, Machine/Mechanical Parts, O Rings

Features: Low Temperature Flexibility, Oil Resistant

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Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Applications & Uses

Applications

Paracril AJ offers an excellent low temperature flexibility with moderate oil resistance and a good processing. It is recommended for seals, O-Rings, and grommets, for hose and tubes requiring low temperature flexibility and blends with other Paracril grades.

Recommended Appliactions:

  • Custom mix
  • Seals
  • Mechanical goods

Properties

Chemical Properties
ValueUnitsTest Method / Conditions
Total Volatile Mattermax. 1%ASTMD 5668
Total Ashmax. 0.8%ASTMD 5667
Bound ACN22 - 25%INSA
Specific Gravity0.96g/ccASTMD 297
Mooney Viscosity41 - 55MUASTMD 1646
Cured Properties
ValueUnitsTest Method / Conditions
Curing Time at 160°C (ML)3.4 - 7.9lb-inASTMD 2084
Curing Time at 160°C (MH)25.0 - 37.8lb-inASTMD 2084
Curing Time at 160°C (tc (1))min. 2.8 - 5.6-ASTMD 2084
Curing Time at 160°C (tc (50))min. 4.0 - 7.7-ASTMD 2084
Curing Time at 160°C (tc (90))min. 7.8 - 18.2-ASTMD 2084

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Packaging and Storage

Paracril AJ offers an excellent low temperature flexibility with moderate oil resistance and a good processing. It is recommended for seals, O-Rings, and grommets, for hose and tubes requiring low temperature flexibility and blends with other Paracril grades.

Store in a dry and ventilated area where it will not be exposed to direct sunlight, extreme temperatures or sources of ignition.Please consult Paracril AJ “Material Safety Data Sheet” (MSDS) for more detailed handling and storage information.