NBR Nitrile Butadiene Rubber

Nitrile rubbers are used for manufacturing a wide range of technical products that require good resistance to oils, fuels and greases.

Due to their non-staining antioxidant content, these rubbers may be used to manufacture light- or brightly-coloured products. They are also suitable for use in food contact or potable water applications.

Synthos nitrile (acrylonitrile butadiene) rubbers are produced by low-temperature emulsion polymerization of butadiene and acrylonitrile and are sold under the KER®  brand. Three grades are available with differing bound acrylonitrile content.

All KER® NBR products are also available as bio/circular-attributed nitrile butadiene rubber under ISCC Plus certification.

Nitrile rubber is delivered directly to our customers in polyethylene (PE) foil-wrapped bales and packaged into returnable metal or non-returnable wooden boxes.

Commercial Grades

TypeAntioxidantMooney viscosity (ML)Bound acrylonitrile (%)
KER® N-18Non-staining5018.0
KER® N-29Non-staining5029.0
KER® N-33Non-staining5033.0

Technical and safety data sheets (TDS and SDS) are available on request, following the completion of the contact form.


Reach out to us to learn more about our solutions.

Write to us