|Material||Temperature Range(°F)*||Comments and Typical Uses|
|Nitrile (Buna-N, NBR)||-20 to 212||Highly resistant to abrasion and tearing.
Nitrile is the most commonly used elastomer for sealing applications,
and it is the material of choice for petroleum applications.
|Hydrogenated nitrile (HNBR)||-20 to 300||Compared to nitrile, HNBR has better chemical resistance, better heat
resistance, and better resistance to seal extrusion.
|Viton® (fluorocarbon, fluoroelastomer)||-15 to 400||Better resistance to chemicals and high temperatures than most
|PEEK||-100 to 550||A high-modulus material with excellent thermal and mechanical properties.|
|PPS||-40 to 425||Has the broadest resistance to chemicals of any advanced engineering
plastic. Is inert to steam, strong bases, fuels, and acids; has no known
solvent below 392°F. Does not absorb moisture.
Can be machined to tight tolerances.
|Nylon||-20 to 210||Tough, and resistant to abrasion. Good resistance to hydrocarbons,
aromatic and aliphatic solvents, common automotive oils and lubricants,
and refrigerants. Its low coefficient of friction enables items fabricated with
nylon to be used without lubrication.
|PTFE||-400 to 450||Highly resistant to many chemicals, and can function over a very wide
temperature range. Also resists weathering.