This elastomer is a copolymer of butadiene and acrylonitrile and is used for most conventional sealing applications. The percentage of acrylonitrile determines the classification between low nitrile, medium and high. The higher the percentage the greater the resistance to oils and petroleum-derived hydrocarbons. At the same time, however, the low temperature is reduced. For this reason, the standard NBR compound used is the best compromise between oil and hydrocarbon resistance, flessibility and mechanical strength. Rubber also known as anti-oil or nitrile. Depending on uses and needs, we propose different qualities of NBR, each designed to meet the different needs of the customer.
- NBR STANDARD
- NBR SUPER
- NBR FOOD
- NBR ANTIBENZINE (DATA SHEET DOWNLOADED IN THE MAIN MENU DEDICATED)
- Oil resistance (for antifreeze, antibacterial is preferred)
- Mechanical strength 1OMPa (20 MPa mark)
- Good water resistance
- Good resistance to tearing and abrasion
- Good flexibility
- Good gas impermeability
- Operating temperatures: -40 ° C 120 ° C if vulcanized with accelerating sulfur; 40 ° C 140 ° C if peroxide crosslinking (with 30% ACN)
- Poor ozone resistance.
- Poor weather resistance.
- Poor direct sunlight resistance.
- Poor resistance to UV radiation.
- Poor dielectric properties.
- Flame resistance nothing.
- Not resistant to glycol glycol base.
- Poor resistance to polar fl uids (ketones, ethers, esters) to chlorinated hydrocarbons, to aromatic solvents.
- Mechanical: very used rubber in the industry where oil contact is required; The minimal absorption of the oils makes the rubber not lose its features and does not lose weight. For contact with petrol and fuels there are specific qualities of NBR suitable for contact with these substances (NBR antibiotics).
- Food: White food version available on request.
- Electric: poor dielectric quality limits its use in this field.
- Chemical: Not being born to resist chemical agents its application in this world is limited. It is advisable to always know the substances in contact and verify their compatibility with substance tables.
See the file for technical specifications