Hydrogenated Nitrile Butadiene Rubber HNBR O-Ring seal with high temperature and fuel resistance

HNBR has been developed to meet higher temperatures than standard NBR while retaining resistance to petroleum based oils. Obtained by hydrogenating the nitrile copolymer, HNBR fills the gap left between NBR, EPDM and FKM elastomers where high temperature conditions require high tensile strength while maintaining excellent resistance to motor oils, sour gas, amine/oil mixtures, oxidized fuels, and lubricating oils.

HNBR o-rings offer resistance to aggressive chemical media at a level comparable with NBR seals, but with the added advantage of enhanced stability with exposure to heat and oxidation. It is also highly durable and demonstrates improve abrasion resistance.