Bentone (old)

Extreme-Pressure, Clay-Thickened Grease

Phillips 66® Bentone is a high-quality, extreme-pressure (EP), clay-thickened grease developed for the lubrication of industrial equipment operating under heavy loads and at high temperatures. It is particularly recommended for medium-to-large, low-speed bearings operating at very high temperatures where conventional soap-based greases typically fail to provide satisfactory lubrication.

Features & Benefits

  • Non-melt clay thickener
  • Excellent resistance to changes in consistency at high temperatures
  • Good extreme pressure and antiwear properties
  • Adheres to metallic surfaces
  • Good shear stability
  • High film strength
  • Resists water washout
  • Good mechanical and storage stability


  • Banbury mixers
  • Drying ovens
  • Jaw crushers
  • Kiln cars
  • Rolling and strip mills
  • Steel mills
  • Aluminum, cement, glass and rubber plants

Technical Details

Licenses & Approvals


Additional Details
NLGI Grade2
ThickenerBentonite Clay
Dropping Point, °C (°F)>288 (>550)
Density, lbs/gal7.71
Penetration, ASTM D217 (worked 60 strokes)265-295
Four-Ball EP, ASTM D2596, Weld Load, kgf250
Oxidation Stability, ASTM D942, 100 hrs, Pressure Drop, psi (kPa)5 (35)
Rust Prevention, ASTM D1743Pass
Timken OK Load, ASTM D2509, lb45
Base Oil Properties:0.3
cSt @ 40°C450
cSt @ 100°C31.5
SUS @ 100°F2400
SUS @ 210°F154
Viscosity Index101
Usable Temperature Range(1)
°C-7 to 190
°F20 to 375