Hydrogenated Nitrile Rubber (HNBR / HSN)

Hydrogenated nitrile Butadiene Rubber (HNBR), also referred to as Highly Saturated Nitrile (HSN) is a modified class of Nitrile rubber where the polymer chain has been saturated with hydrogen atoms (hydrogenated) to provide the material with superior mechanical and physical properties in comparison to standard Nitrile (NBR).

HNBR materials offer superior heat and chemical resistance against standard NBR grades and just like NBR, the variations in the Acrylonitrile (ACN) content determine the materials resistance to oils and solvents, while the degree of hydrogen saturation influences the heat resistance of the compound. just like NBR compounds a lower ACN content will provide improved low temperature flexibility, but will affect the compounds chemical resistance.

HNBR materials bridge the gap between Nitrile (NBR) and Fluorocarbon (FKM / FPM / Viton™) rubbers in areas where the resistance to aggressive fluids / media and temperature resistance are required simultaneously while generally being a lower cost alternative to Fluorocarbon rubber materials.

DMR Seals has a number of high performance Hydrogenated Nitrile Rubber (HNBR) materials available to suit an extremely wide range of applications.

Please contact our technical team if you require further information or cannot find the material compound you require.

Material Range

Temperature

Min: -25°C
Max: +150°C

Min: -20°C
Max: +150°C

Min: -20°C
Max: +150°C

Min: -20°C
Max: +150°C

Min: -30°C
Max: +150°C

Min: -15°C
Max: +150°C

Min: -40°C
Max: +150°C

Min: -25°C
Max: +150°C

Min: -20°C
Max: +150°C

Hardness

83 Shore A

90 Shore A

95 Shore A

75 Shore A

82 Shore A

85 Shore A

83 Shore A

85 Shore A

83 Shore A

Description

A peroxide cured Hydrogenated-Acrylonitrile-Butadiene-Rubber (HNBR / HSN) which has excellent abrasion resistance, good compression set resistance and offers a wide temperature range.

Our hard grade HNBR / H-NBR / HSN which has excellent abrasion and extrusion resistance, and also offers a wide temperature range.

Our extreme hard grade HNBR / H-NBR / HSN, which has  excellent abrasion and extrusion resistance, which makes it a good choice for high pressure applications.

A soft HNBR / H-NBR / HSN, which provides good temperature resistance, excellent elasticity and compression-set characteristics.

An FDA compliant HNBR material, with improved chemical resistance over standard nitrile compounds.

A peroxide cured HNBR / H-NBR / HSN which has been optimised and tested against Norsok M-710 requirements for resistance to Explosive Decompression (ED).

Optimised for resistance to the risk of Rapid Gas Decompression (RGD) and to allow its use in low temperature applications.
Approvals: RGD (Rapid Gas Decompression) resistance

A green coloured commercial grade HNBR / H-NBR / HSN, which has excellent abrasion, tear resistance and chemical resistance.

Approvals: ISO 23936-2 / Norsok M-710 Annex A & B compliant & ISO 10423:2009 F.1.13.5.2 API 6A FF/HH tested & RGD (Rapid Gas Decompression) resistance

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