Clay Grease / Bentonite Grease

Clay grease or bentonite grease were the most popular non-soap thickened greases.  These smooth-textured greases can have outstanding heat resistance, since the thickener will not melt and when tested for dropping point, do not give a value.

Benefits and Value
  • No dropping point
  • Excellent water resistance
  • Fair work stability
  • Fair low-temperature properties
  • Abrasive parts can accumulate over time
  • Limited corrosion resistance, extreme pressure and AW
  • High-temperature limitations
Clay Grease / Bentonite Grease Applications
  • High temperature applications for short intervals
  • Frequent relubrication needed