Precision Polymer N70L

Category: NBR , Acrylonitrile Butadiene Rubber
Manufacturer: Precision Polymer Engineering Ltd.
Trademark: Precision Polymer
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: Q8tX7c_Precision-Polymer-N70L.pdf
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Nitrile Butadiene Rubber (NBR), 70 IRHD. Low- Med acrylonitrile (ACN) content. Copolymer of acrylonitrile and butadiene. To meet: ASTM D2000/SAE J200 line call-out: M5BG710, A14, B14, EO14, EO34, F17.

The low acrylonitrile content of this compound provides excellent low temperature flexibility, in sealing conditions where resistance to mineral oil, alcohol, paraffin and low-aromatic petrol is required. Not recommended for use with acetone, benzene, chlorinated solvents or high-aromatic petrol. Good water resistance but poor against ozone and weather.
General Information
Features
  • Flexibility at low temperatures
  • Copolymer
  • Low or no water absorption
HardnessNominal ValueTest Method
IRHD Hardness 65 - 75ASTM D1415, ISO 48
ElastomersNominal ValueUnitTest Method
Tensile Strength (Yield)> 10.0MPaASTM D412, ISO 37
Tensile Elongation (Break)> 250%ASTM D412, ISO 37
Compression Set (100°C, 22 hr)> 25%ASTM D395, ISO 815
AgingNominal ValueUnitTest Method
Change in Tensile Strength in Air (100°C, 70 hr)< -20%ASTM D412, ISO 37
Change in Ultimate Elongation in Air (100°C, 70 hr)< -40%ASTM D412, ISO 37
Change in IRHD Hardness in Air (100°C, 70 hr)-15 - 15ASTM D573, ISO 188
ThermalNominal ValueUnit
Maximum Operating Temperature 120°C
Additional InformationNominal ValueUnit
Low Temperature Resistance - Non-brittle after 3 minutes -40°C
Minimum Operating Temperature: -40°C (-40°F)
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