Nitrile Compounds
Nitrile or Buna N Polymer
Nitrile (NBR) is a copolymer of Acrylonitrile and Butadiene rubbers. The ratio of the two polymers affects the properties of a rubber compound. Raising the acrylonitrile content will increase resistance to oil and solvents and improve abrasion resistance. Lowering the acrylonitrile content improves low temperature properties, compression set and fuel resistance.
While Nitrile rubber is considered to be a general purpose material for O-Rings and many other seals, it can be specifically compounded for many purposes. Grades are available for: food processing, use with milk and edible oils, potable water and other specialty applications. Internal lubricants may be added to reduce frictional properties and extend wear. Specialty Nitrile polymers can be produced by carboxylation (see carboxylated Nitrile) or hydrogenation (see HNBR).
The service temperature for PAI Nitrile compounds varies on the low end from -90º to -15º F (-65º to -25º C) depending on acrylonitrile content. On the high side continuous service varies from 225º F to 300º F depending on the curing agent used. PAI offers NBR compounds in hardness ranges from 30 to 95 durometer. Black is the standard color, but many other colors are available.
While Nitrile rubber is considered to be a general purpose material for O-Rings and many other seals, it can be specifically compounded for many purposes. Grades are available for: food processing, use with milk and edible oils, potable water and other specialty applications. Internal lubricants may be added to reduce frictional properties and extend wear. Specialty Nitrile polymers can be produced by carboxylation (see carboxylated Nitrile) or hydrogenation (see HNBR).
The service temperature for PAI Nitrile compounds varies on the low end from -90º to -15º F (-65º to -25º C) depending on acrylonitrile content. On the high side continuous service varies from 225º F to 300º F depending on the curing agent used. PAI offers NBR compounds in hardness ranges from 30 to 95 durometer. Black is the standard color, but many other colors are available.
Item # |
Nominal Durometer |
Color |
Compound Features |
RoHS Compliant |
REACH Compliant |
---|---|---|---|---|---|
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3725 3725/Asset/FDA - ADI - 3-A Image.jpg | Nominal Durometer N/A 70 | Color N/A White | Compound Features N/A FDA, 3-A | RoHS Compliant N/A false | REACH Compliant N/A false |
5926 5926/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 90 | Color N/A Yellow | Compound Features N/A | RoHS Compliant N/A false | REACH Compliant N/A false |
3301 3301/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 30 | Color N/A BLACK | Compound Features N/A General Purpose | RoHS Compliant N/A false | REACH Compliant N/A false |
3405 3405/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 40 | Color N/A BLACK | Compound Features N/A General Purpose | RoHS Compliant N/A false | REACH Compliant N/A false |
3418 3418/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 40 | Color N/A BLACK | Compound Features N/A Teflon Filled | RoHS Compliant N/A false | REACH Compliant N/A false |
3447 3447/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 40 | Color N/A BLACK | Compound Features N/A Oil Resistant, Good Elongation | RoHS Compliant N/A false | REACH Compliant N/A false |
3500-11 3500-11/Asset/FDA - ADI Image.jpg | Nominal Durometer N/A 50 | Color N/A BLACK | Compound Features N/A FDA | RoHS Compliant N/A false | REACH Compliant N/A false |
3505 3505/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A BLACK | Compound Features N/A Fuel Resistant | RoHS Compliant N/A false | REACH Compliant N/A false |
3517 3517/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 50 | Color N/A BLACK | Compound Features N/A Moly Filled | RoHS Compliant N/A false | REACH Compliant N/A false |
3518 3518/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 50 | Color N/A BLACK | Compound Features N/A Teflon Filled | RoHS Compliant N/A false | REACH Compliant N/A false |
3520 3520/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 50 | Color N/A BLACK | Compound Features N/A High Temperature | RoHS Compliant N/A True | REACH Compliant N/A false |
3525 3525/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 50 | Color N/A White | Compound Features N/A | RoHS Compliant N/A false | REACH Compliant N/A false |
3544 3544/Asset/FDA - ADI Image.jpg | Nominal Durometer N/A 50 | Color N/A BLACK | Compound Features N/A FDA | RoHS Compliant N/A false | REACH Compliant N/A false |
3547 3547/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 50 | Color N/A BLACK | Compound Features N/A Oil Resistant, Good Elongation | RoHS Compliant N/A false | REACH Compliant N/A false |
3616 3616/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 65 | Color N/A BLACK | Compound Features N/A Conductive | RoHS Compliant N/A false | REACH Compliant N/A false |
3617 3617/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A BLACK | Compound Features N/A Moly Filled | RoHS Compliant N/A false | REACH Compliant N/A false |
3618 3618/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A BLACK | Compound Features N/A Teflon Filled | RoHS Compliant N/A false | REACH Compliant N/A false |
3619 3619/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A BLACK | Compound Features N/A Graphite Filled | RoHS Compliant N/A false | REACH Compliant N/A false |
3620 3620/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A BLACK | Compound Features N/A High Temperature | RoHS Compliant N/A True | REACH Compliant N/A false |
3623 3623/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A Green | Compound Features N/A | RoHS Compliant N/A false | REACH Compliant N/A false |
3628 3628/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A Blue | Compound Features N/A | RoHS Compliant N/A false | REACH Compliant N/A false |
3642 3642/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A Rust Red | Compound Features N/A | RoHS Compliant N/A false | REACH Compliant N/A false |
3656 3656/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 60 | Color N/A Yellow | Compound Features N/A | RoHS Compliant N/A false | REACH Compliant N/A false |
3675 3675/Asset/FDA - ADI Image.jpg | Nominal Durometer N/A 60 | Color N/A White | Compound Features N/A FDA | RoHS Compliant N/A false | REACH Compliant N/A false |
3718 3718/ImgCustom/1004/placeholder_notavailable.gif | Nominal Durometer N/A 75 | Color N/A BLACK | Compound Features N/A Teflon Filled | RoHS Compliant N/A false | REACH Compliant N/A false |