Nancar® NBR 4155

1 of 11 products in this brand
Nancar® NBR 4155 is a high acrylonitrile butadiene copolymer with excellent oil resistance. It is polymerized at low temperature and contains sufficient antioxidant for normal aging conditions. It has fast curing rate, low mold fouling and superior resilience properties. It has good processing characteristics in compounds where flow and knitting are desired and is especially valuable in high durometer compounds..

Polymer Name: Acrylonitrile Butadiene Rubber (NBR)

Features: Cold Polymerized, Excellent Flowability, Exceptional Resilience, Fast Curing, Good Knitability, Good Processability, Oil Resistant

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Identification & Functionality

Additives Included
Chemical Family
Technologies

Features & Benefits

Applications & Uses

Markets
Applications

NANCAR® 4155 provides superior processing characteristics, fast curing rate, low mold fouling, superior resilience properties and superior flowability. It is suggested for use in molded goods, friction stock and similar applications.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Bound Acrylontrile Content39.5-42.5%Internal test method, NANTEX Inc.
Heat Lossmax. 0.5%ASTM D-5688
Mooney Viscosity [ML1+4 at 100°C (massed)]50-60ASTM D-1646
Specific Gravity1Internal test method, NANTEX Inc.
Total Ash Contentmax. 0.7%ASTM D-1416
Rheological Properties
ValueUnitsTest Method / Conditions
Maximum Torque (160°C, 30min.)4.68lb-inISO 6502/ASTM D-5289
Minimum Torque (160°C, 30min.)0.79lb-inISO 6502/ASTM D-5289
Optimum Cure (160°C, 30 min)13.3MinutesISO 6502/ASTM D-5289
Scorch Time (160°C, 30 min)2.9MinutesISO 6502/ASTM D-5289

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Compound Properties

Test formulation:ASTM D-3187/ISO 4658 /Miniature internal mixer(based on IRB#8)

Ingredients Parts (phr)
NANCAR® 4155 100.00
NBS zinc oxide 3.00
2% MgCO3 coated 1.50
NBS stearic acid 1.00
HAF Black IRB#8 40.00
TBBS, NBS 384 0.70
Total 146.20

Packaging & Availability

Packaging Type
Packaging

25kg bales on pallets of 1200kg

Storage & Handling

Shelf Life

12 months from date of production at temperatures not exceeding 35°C in dry conditions; exposure to light has to be avoided.