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 Oils Severe Service Pneumatic or Vacuum
Petroleum Barium Grease
Dow Corning: DC-55
-20 to 180 -20 to 300
-65 to 275
Fluorocarbon
Hydraulic Oils High Temperature & Vacuum
Petrolatum
DC-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
Skydrol
Steam & Hot Water
Aviation Fuel
Service Co: MCS-352
Dow Corning: DC4, DC-7, DC-55
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