HNBR (Hydrogenated nitrile) / X-NBR (Carboxylated nitrile)
HNBR has recently 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 is resistant to mineral oil-based hydraulic fluids, animal and vegetable fats, diesel fuel, ozone, sour gas, dilute acids and bases. HNBR also resists new bio-oils (biological oils). HNBR is suitable for high dynamic loads and has a good abrasion resistance. HNBR is suitable for temperatures from -30°C to +150°C (-20°F to +302°F).
The carboxyl group is added to significantly improve the abrasion resistance of NBR while retaining excellent oil and solvent resistance. XNBR compounds provide high tensile strength and good physical properties at high temperatures. XNBR is suitable for temperatures from -30°C to +150°C (-20°F to +302°F).
| Compound number |
Elastomer | Hardness IRHD ±5 |
Description / Application | Certificates | Colour | Temp. °C |
|---|---|---|---|---|---|---|
| HNBR 886972 (626kB) |
HNBR |
70 |
hydrogenated Nitrile compound with medium percentage of Acrylonitrile. Standard compound with good compression set values for contact with fatty foods |
FDA 177.2600, ADI, EC1935/2004 |
white |
-30 / +150 |
| HNBR 88625 (582kB) | HNBR | 70 | a hydrogenated Nitrile compound of standard quality for use in the industry. Good chemical and mechanical properties |
black | -30 / +150 | |
| HNBR 886172 (620kB) |
HNBR |
70 |
hydrogenated Nitrile compound with medium percentage of Acrylonitrile |
FDA 177.2600, ADI, EC1935/2004 |
black |
-30 / +150 |
| HNBR 886214 (695kB) |
HNBR |
70 |
anti-bacterial compound. Excellent water and steam resistant up to 150°C and resistant to vegetable and animal oils |
FDA 177.2600, ADI, EC1935/2004, bio-hygienic |
red |
-30 / +150 |
| HNBR 886301 Vulc-O-Ring (588kB) | HNBR | 75 | is made of a specially formulated HNBR with good compression set. Peroxide cured. For use with oils and bio oils at higher temperatures than NBR |
black | -30 / +150 | |
| XNBR 886390 (582kB) |
XNBR |
75 |
made of XNBR. Cure system is sulphur |
black |
-23 / +100 |