Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of xnbr rubber molded parts in China. If you're going to buy xnbr rubber molded parts made in China, welcome to get more information from our factory. We also accept customized orders.
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.
Physical & Mechanical Properties
Durometer or Hardness Range: 50 – 90 Shore A
Tensile Strength Range: 1,000 – 3,500 PSI
Elongation (Range %): 250% – 600%
Abrasion Resistance: Excellent
Adhesion to Metal: Good to Excellent
Adhesion to Rigid Materials: Good to Excellent
Compression Set: Fair to Good
Flex Cracking Resistance: Fair
Impact Resistance: Good to Excellent
Resilience / Rebound: Fair to Good
Tear Resistance: Excellent
Vibration Dampening: Fair to Good
Environmental Performance
Colorability: Good
Flame Resistance: Poor
Gas Permeability: Fair to Excellent
Odor: Good
Ozone Resistance: Fair
Oxidation Resistance: Good
Radiation Resistance: Fair to Good
Steam Resistance: Fair to Good
Sunlight Resistance: Poor to Good
Taste Retention: Fair to Good
Weather Resistance: Fair to Good
Water Resistance: Good



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