Ingress Ratings Sold as Marketing against a Real Test Report
Verify ingress claims using ISO IEC 17025 accredited test reports detailing pre and post electrical insulation checks rather than marketing datasheets.
Nitrile Rubber
Elastomeric Polymer
Synthetic rubber materials offer balanced mechanical properties and resistance to petroleum-based fluids in industrial sealing applications. Nitrile rubber is a copolymer of acrylonitrile and butadiene used extensively for gaskets, o-rings, and seals. It provides good resistance to oils, fuels, and grease, making it a standard choice for automotive and industrial machinery.
Its use is limited by poor resistance to ozone and weathering.
Acrylonitrile Content
The ratio of the two monomers determines the balance between oil resistance and low-temperature flexibility. In nitrile rubber, a higher acrylonitrile content increases the resistance to oils and fuels but raises the brittle temperature. Conversely, a lower content improves low-temperature flexibility at the expense of oil resistance.
Engineers must select the correct grade based on the operating temperature range.
Mechanical Durability
This elastomer exhibits high tear and abrasion resistance, making it suitable for dynamic sealing applications. Utilizing nitrile rubber ensures that seals can withstand the physical wear of moving parts without tearing or losing their shape. It has moderate compression set resistance, which is verified through standard aging tests.
This mechanical endurance extends the service life of industrial equipment.
Application Limits
This material should not be used in outdoor applications where ozone or high sunlight exposure causes cracking. It degrades quickly.