company tower banner
Dynasol Elastomers Company Logo
Paracril BJ is a copolymer of butadiene and acrylonitrile, hot polymerized with a non-staining stabilizer.

Polymer Name: Acrylonitrile Butadiene Rubber (NBR)

Chemical Family: Nitrile Rubbers

Features: Good Processability, Low Temperature Flexibility, Oil Resistance, Oil Resistant

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions

Features & Benefits

CASE Ingredients Features

Applications & Uses

Applications

Paracril BJ offers excellent balance of low temperature flexibility with oil resistance, and good processing characteristics. It is recommended for automotive products, seals, hoses, O-rings, packing’s, adhesives, sponge and printing blankets.

Recommended Appliactions:

  • Sponge
  • Seals
  • Custom mix
  • Adhesives
  • Mechanical goods

Properties

Physical Form
Chemical Properties
ValueUnitsTest Method / Conditions
Total Volatile Mattermax. 1%ASTMD 5668
Total Ashmax. 0.8%ASTMD 5667
Bound ACN28 - 31%INSA
Specific Gravity0.97g/ccASTMD 297
Mooney Viscosity ML (1+4) at 100°C43 - 57MUASTMD 1646
Cured Properties
ValueUnitsTest Method / Conditions
Curing Time at 160°C (ML)2.8 - 8.0lb-inASTMD 2084
Curing Time at 160°C (MH)19.6 - 29.6lb-inASTMD 2084
Curing Time at 160°C (tc (1))min. 3.0 - 4.5-ASTMD 2084
Curing Time at 160°C (tc (50))min. 4.2 - 6.4-ASTMD 2084
Curing Time at 160°C (tc (90))min. 9.5 - 21.5-ASTMD 2084

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Packaging Type
Packaging and Storage

This product is commercialized in 25 Kg/Bale (55 Lb. /Bale) - 1,000 Kg/Skid - Net (2,200 Lb. /Skid.) rectangular bales individually wrapped in low melting point polyethylene film. Tolerance in all bale and packaging weights +1 percent.

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 BJ “Material Safety Data Sheet” (MSDS) for more detailed handling and storage information.