HNBR

HNBR

Special nitrile of the highest quality in terms of its operating properties and resistance to oils, greases, hydrocarbons and excellent for making all types of gaskets and flanges that come into contact with the oil of distribution and power transformers; excellent resistance to environmental aging, meets the standards required by transformer manufacturers, useful in automotive gaskets.

HNBR is widely known for its physical strength and property retention after long-term exposure to heat, oils and chemicals. This type of rubber has a high tensile strength ranging from 21 - 31 Mpa.

What is hnbr?

Hydrogenated nitrile is a synthetic polymer obtained from hydrocarbon rubber chains saturated with hydrogen nitrile. This special hydrogenation process reduces many double bonds in the main NBR polymer chains so that HNBR has superior resistance to heat, ozone, chemicals and superior mechanical characteristics to standard nitrile.

Hydrogenated nitrile is a synthetic polymer obtained from hydrocarbon rubber chains saturated with hydrogen nitrile. This special hydrogenation process reduces many double bonds in the main NBR polymer chains so that HNBR has superior resistance to heat, ozone, chemicals and superior mechanical characteristics to standard nitrile.

A hydrogenated version of nitrile rubber, HNBR, also known as HSN (highly saturated nitrile) is commonly used for the manufacture of sealing rings for automotive air conditioning systems.

HNBR Physical properties:

What are the main uses of Hydrogenated Nitrile (HNBR)?

Hnbr is an elastomer with very particular qualities of high resistance to oils and greases at high temperatures and one of its most widespread uses is in automotive gaskets. Hnbr gaskets have excellent resistance to the fluids used in this sector: oils, gasoline, coolants, etc., and are commonly used for the manufacture of gaskets for suspensions and gaskets and mechanical seals for braking systems, as well as for the production of expansion joints. In addition, hnbr gaskets are commonly used in gas generating plants.

In addition to flat gaskets in this type of elastomer, we can supply hnbr O-rings in different hardnesses and formulations.

HNBR material

Similar to other elastomers, HNBR rubber exhibits compressive hardening strength, good tear strength, good tensile strength, abrasion resistance and high elasticity. Along with these strengths, HNBR rubber also has good resistance to thermal aging and low temperature tolerances compared to other oil and heat resistant elastomers.

With rubber such as nitrile, an increase in acrylonitrile content increases resistance to heat and petroleum-based oils and fuels, but decreases low-temperature performance.