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Nitrile Rubber

  • Nitrile Rubber (NBR)

    Nitrile Rubber (NBR) is the common term used to describe Acrylonitrile Butadiene Copolymer, a thermoset elastomer which is the most common sealing material used in industry today.

    Nitrile Rubber compounds offer good resistance to compression set, extrusion and abrasion, whilst being relatively low in cost.

    NBR properties

    The major influence that determines the physical properties of Nitrile is the Acrylonitrile content of the compound (or ACN as it is commonly referred to). A Nitrile compound with a high ACN content will provide the material with improved abrasion resistance, tensile strength and a greater resistance to oils and solvents. A Nitrile with a lower ACN content however, gives the material better low temperature flexibility and improved resilience.

    We offer a number of Nitrile compounds which have been formulated to suit a wide range of applications:

    Data sheet
    Temperature
    Hardness
    Description
    NBR-B85
    General Purpose 85a Nitrile Rubber    		 Min: -25°C
    Max: +100°C    		 85 Shore A A general purpose NBR / Nitrile / BUNA-N, with good physical characteristics and chemical resistance to the most common hydraulic industry fluids such as Mineral Oils, HFA, HFB and HFC.
    NBR-B95
    Hard Grade 95a Nitrile Rubber    		 Min: -25°C
    Max: +100°C    		 95 Shore A
    A general purpose NBR / Nitrile / BUNA-N with increased hardness.
    NBR-B90
    Black Hard Grade 90a Nitrile Rubber

    Min: -25°C
    Max: +100°C

    		 90 Shore A
    A general purpose NBR / Nitrile / BUNA-N with increased hardness.
    NBR-B75
    75a Shore Nitrile Rubber    		 Min: -30°C
    Max: +100°C    		 73 Shore A

    A soft NBR / BUNA-N, which has excellent elasticity and compression-set characteristics, making it an excellent choice for low-pressure hydraulic and pneumatic seals or energising elements for composite type seals.
    NBRFQ-W85
    White FDA Compliant NBR    		 Min: -30°C
    Max: +100°C    		 85 Shore A A white sulphur cured NBR which is a good choice for food and beverage applications.
    Approvals: EU (EC) 1935/2004 Compliant
    NBRFQ-BL80
    Blue FDA EC 1935 2004 Compliant NBR    		 Min: -30°C
    Max: +100°C    		 80 Shore A A blue NBR material, suitable for food contact use.
    Approvals: EU (EC) 1935/2004 Compliant
    NBR-W85
    White General Purpose 85a Nitrile Rubber    		 Min: -30°C
    Max: +100°C    		 85 Shore A

    A general purpose NBR / Nitrile / BUNA-N, coloured white for easier identification and to help prevent possible cross contamination with other grades of material that are the standard black colour.
    LTNBR-B80
    80a Shore Low Temp Nitrile Rubber    		 Min: -50°C
    Max: +110°C    		 80 Shore A A soft NBR material that has been modified to provide excellent low-temperature flexibility and elasticity.

    Help & Advice

    Please contact our technical department for further advice or if the compound you require is not shown.

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