Nitrile butadiene rubber (NBR) 2875

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NBR 2875 is a copolymer of butadiene and acrylonitrile to be manufactured by cold emulsion polymerization through the advanced technology and process of LG Chem.

NBR 2875 is a non staining, high mooney, and medium low acrylonitrile polymer designed to aid in processing operations such as extrusion and press molding. And also, this grade offers good flexibility and elasticity in low temperature by the minimized block structure structure on polymer chain.

This material data has been provided by LG Chem.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts




Bound AN Content

28.0 %

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0.98 g/cm³

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Volatile share

0.2 %

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PropertyValueTesting StandardComment


435 %

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145°C×50min. Cured

Modulus at 300% elongation

0.019 GPa

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145°C×50min. Cured

Tensile strength

290 MPa

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145°C×50min. Cured



Ash content

0.5 %

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Rheological Properties


Mooney viscosity

75 MU

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ML1+4 and 100°C (milled)

Technological properties

Application areas

NBR 2875 is preferably uesd for industrial and automotive hoses and many rubber parts such as roller, gasket and o-rings. And also, it can be used for foam insulation application due to excellent elasticity and good flexibility in low temperature.


Light Tan


Shelf Life : 18 months from date of production atb room temperatures not exceeding 30°C under belowed storage condition (Retest critical parameters like MV and others after the expiry of shelf life).

Storage condition: NBR should be stored in warehouse to be protected from sunlight, heat, moisture and foreign materials.

Packaging size

Bale Weight: 35kg

Bale wrapping film: LDPE

Processing history

Polymerization: Cold Emulsion

Processing methods

Recipe (ASTM D3187):

NBR 2875: 100 phr

HAF(IRB #8): 40

ZnO: 3.0

Stearic Acid: 1.0

TBBS: 0.7

Sulfur: 1.5

Total: 146.2