Carboxylated Nitrile(XNBR)
Cabboxylated Nitrile is similar to Nitrile rubber, but
the polymer backbone has been chemically modified with
Carboxylic Acid containing 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 assembly such as seals and
rod wipers.
Cure system - Sulfur-Cured
Standard XNBR compounds are sulfur-cured.
General Information
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
Service Temperatures
Standard Low Temperature: -20°C
/ -4°F
Standard High Temperature: 100°C
/ 212°F
Special Compound High Temperature: 125°C
/ 257°F
Performs Well In... |
Doesn't Perform Well In.. |
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Aliphatic hydrocarbon
-
Vegetable and mineral oils and
greases
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Diesel
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Water
-
Dilute acids, alkali and salt
solutions
|
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Aromatic hydrocarbon
-
Chlorinated hydrocarbon
-
Ketones
-
Acetic acid
-
Ethylene ester
-
Strong acids
-
Brake fluid with glycol base
|