Nitrile (NBR)
Standard petroleum-based seal material
Temp: -40°F to 250°F
Cost: Low
Apps: Hydraulic cylinders, Pumps
Viton (FKM)
High temperature fluorocarbon elastomer
Temp: -15°F to 400°F
Cost: High
Apps: High temperature, Chemical resistance
EPDM
Ethylene propylene diene rubber
Temp: -65°F to 300°F
Cost: Medium
Apps: Brake systems, Water systems
Polyurethane (PU)
High performance elastomer for dynamic applications
Temp: -45°F to 200°F
Cost: Medium
Apps: Rod seals, Wiper seals
Silicone (VMQ)
Temperature resistant silicone rubber
Temp: -100°F to 450°F
Cost: Medium
Apps: Food grade, Medical
PTFE
Polytetrafluoroethylene - chemically inert
Temp: -200°F to 500°F
Cost: High
Apps: Chemical processing, High pressure