Straight oil metalworking fluid
CT 239


Market Served

CT 239


Product Description

CT 239 is a dual-purpose oil formulated as a cutting oil and used as a gear oil. The advantage of this oil is realized in automatic machine tools in which, because of leakage from one oil system to another, there may be considerable intermingling of lubricants. The use of CT 239 as both lube oil and cutting oil assures excellent machinability while minimizing the likelihood of staining on the sensitive metals used in gear and hydraulic systems. The non-staining features of CT 239 make the oil well suited for machining of copper and copper alloys. CT 239 contains chlorine and non-staining inactive sulfur for extreme pressure properties. CT 239 is rust and oxidation inhibited.

Featured Benefits
  • Light amber color and low odor
  • Dual-purpose oil for use as a cutting oil and a gear oil
  • Can be used on both ferrous and non-ferrous metals
  • High performance EP package provides excellent performance on a variety of metals
Typical Properties
Appearance Clear amber liquid
Chlorine Free No
Compatible Metals Aluminum Alloys
Compatible Metals Ferrous
Copper Corrosion, 2 hrs., 100°F (38°C) 1A
Film Type Oily
Flash Point, COC 410°F (210°C)
Fluid Type Dual-purpose oil, moderate alkaline cleaner
Foaming Characteristics Moderate
Machining Capabilities Light to Moderate-Duty Grinding
Machining Capabilities Light to Moderate-Duty Machining
Odor Mild
Rust Protection 1-2 week corrosion protection indoors
Specific Gravity, 60°F (15.6°C) 0.88
Sulfur Free No
Viscosity (100°F) 175 SUS
Weight, lb-gal., 60°F (15.6°C) 7.36