General Purpose Lubricants for Common O-Ring Elastomers
In all dynamic applications, proper lubrication and good heat dissipation are essential to long seal life and performance. In pneumatic applications, supplemental lubrication should be provided. Lubricants should be selected on the basis of the material of which the O-Ring is made and the type of service to which it will be subjected. (See Table). In other instances the lubricant can be molded into the O-Ring, or Teflon or other coatings can be applied to the surface.
|Type of Elastomer||Type of Service||Lubricant||Temperature Range, ºF|
|Nitrile||Hydraulic OilsSevere ServicePneumatic or Vacuum||PetroleumBarium GreaseDow Corning: DC-55||-20 to 180-20 to 300-65 to 275|
|Fluorocarbon (Viton)||Hydraulic OilsHigh Temperature & Vacuum||PetrolatumDC-55 -65||-20 to 180-65 to 275|
|Chloroprene||Hydraulic Oils Vacuum Petrolatum||Petrolatum||-20 to 180|
|Silicone||General High Temperature Petrolatum||Dow Corning: FS-1292||-20 to 180-20 to 400|
|Ethylene-Propylene||SkydrolSteam & Hot Water||Aviation FuelService Co: MCS-352Dow Corning: DC4, DC-7, DC-55||65 to 30032 to 350|