HNBR : Hydrogenated Nitrile Butadiene Rubber

HNBR seals

Obtained by hydrogenating nitrile rubber, HNBR seals offer outstanding physical properties.  In particular, abrasion resistance, combined with good mechanical properties at elevated temperatures, plus excellent resistance to many chemically aggressive technical oils.

 

Specialist Automotive Rubber HNBR Gasket
HNBR engine gasket


What are HNBR seals used for?

HNBR seals, gaskets and mouldings are recommended for applications requiring good heat, ozone and abrasion resistance, such as automotive components. They are particularly suitable in Motorsport & Specialist Automotive for Engine seals, grommets and gaskets and in the Subsea, Oil & Gas industry for sealing in oil field exploration and processing.

 


Product Specifications

Hardness: Shore A (Hint)
50 – 90
Tensile Strength (1000psi)
3.5+
Tear Resistance
Fair
Impact Resistance
Good
Compression Set (Method B, %)
5 – 20
Electrical Resistance (Ω/cm2)
2*1011
Low Temperature
-50°C/-60°F
High Temperature
150°C/300°F
Intermittent High
165°C/330°F
Ozone (protected)
Good
Weather and Sunlight
Good
Gas Permeation
Fair
Water
Fair
Acid/Base – dilute
Good
Acid/Base – concentrated
Fair
Solvent – Aliphatic
Excellent
Solvent – Aromatic
Fair
Oils and Gasoline
Excellent

Why choose custom versus standard HNBR seals, gaskets or mouldings?

DP Seals manufacture custom parts only. If you are currently using standard parts, but have some level of dissatisfaction with results, read our article with nine great reasons to choose custom over standard solutions.


HNBR Material expertise

At DP Seals we manufacture custom HNBR O-Rings, seals, gaskets & mouldings. We pride ourselves on being able to provide specialist advice in selecting and developing exactly the right blend of materials to meet a vast range of performance requirements.

We also maintain a large quantity and variety of quality raw materials in stock, enabling us to offer fast turnaround and provide for tight deadlines.

The information provided here is only a guide to HNBR’s primary characteristics and uses. The relationship between material, product performance and blend options is complex.

Below you’ll find many free resources to help you think about material selection and we are always on hand to discuss your requirements and provide expert advice.


Handy Product Development Resources


Customer testimonials

It is nice to work with people who support you as best they can, in a fast paced challenging environment. As seal manufacturers go, in my experience DP Seals are head and shoulders above the rest. Long may it continue. Mathew Cocksey, Managing Director,  Integral Powertrain


Find out more

  • Speak to our Material Technologists on +44 (0)1202 674671