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Carboxylated Nitrile

Carboxylated Nitrile (XNBR) Rollers

Carboxylated Nitrile (XNBR)

Carboxylated Nitrile compounds are made when additions of carboxylated acid groups are introduced to the Nitrile polymer backbone. The result of carboxylating the Nitrile is improved abrasion resistance, tear resistance, and tensile strength. Like all elastomer materials, as we greatly improve one property, we tend to lose value in another area. With Carboxylated Nitrile, lost benefits are less compression set, resilience, and ozone resistance. 

Carboxylated Nitrile is used commonly in paper and plastic converting applications and in other processes where outstanding abrasion resistance is required. 

Ask us if Carboxylated Nitrile is the right material for your application and budget. 

Carboxylated Nitrile Common Names:

  • XNBR
  • CN

Carboxylated Nitrile vs. Nitrile Properties:

(5) = Excellent (4) = Above Average (3) = Average (2) = Fair (1) = Poor

Rubber Compound

Nitrile Carboxylated Nitrile
Physical Properties    
Hardness Range Shore A 20-95 45-95
Hardness Range P&J 0-200 20-170
Abrasion Resistance 3 5
Tear Resistance 3 5
Load Bearing 4 5
Hysteresis 2 1
Resistance to Denting 3 2
Maximum Service Temperature (C/F) 121/250 135/275
Ozone Resistance 1 1
Resiliency 3 2
Solvent Resistance    
Acids 2 2
Caustics 3 3
Paraffinic Hydrocarbons 5 5
Aromatic Hydrocarbons 3 3
Chlorinated Hydrocarbons 1 1
Water 4 3
Ketones 2 2
Alcohols 5 4
Esters 1 1
Recommended Applications    
Laser Engraving    
Metal Decorating
Offset Printing    
Paper Making Industry  
Plate Processors  
Steel Mill Rollers
Textile Rollers    
Wood Industry
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