Carboxylated Nitrile is similar to Nitrile rubber, but the polymer backbone has been chemically modified with carboxyl group. This result is XNBR with more excellent abrasion and tear resistance than traditional NBR. For this reason, XNBR based parts are usually applied in dynamic assemblies such as seals and rod wipers.
Cure system - Sulfur-Cured
Standard XNBR compounds are sulfur-cured.
ASTM D 1418 Designation: XNBR
ISO/DIN 1629 Designation: XNBR
ASTM D2000 / SAE J 200 Codes: BG, BK, CH
Standard Color(s): Black
Hardness Range: 50 to 90 Shore A
Relative Cost: Low
Standard Low Temperature: -20°C / -4°F
Standard High Temperature: 100°C / 212°F
Special Compound High Temperature: 125°C / 257°F
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