General Description

COHIBIT is a liquid film-forming, water-based corrosion inhibitor designed for use in multi-metal systems operating at high or low temperatures. COHIBIT prevents deposits, scale, sludge and resulting losses in heat transfer or mechanical efficiency caused by high mineral waters.



With water or commercial antifreeze solution, use minimum of 2.0 fl. Oz. of COHIBIT per gallon of cooling system capacity. If uninhibited, ethylene glycol solution is used, 4.0 fluid oz. per gallon of system capacity is recommended.

Physical Properties

Color Red
Odor Faint Organic
Solubility: Water 100%
Ethylene Glycol 15%
Boron (B2O3) 4.2%
Density @ 60° F 10.1 lbs./gal
Flash Point None


  • Contains no chromates
  • Low toxicity
  • No affect on non-metals
  • Inhibits multi-metal system
  • Does not deteriorate
  • Prevents scale and sludge
  • Compatible with antifreeze


COHIBIT is available in UN approved 5 gallon pails and 55 gallon drums.


Observe warning label on containers. Normal precautions for industrial chemicals apply.

pdf COHIBIT-PB (65 KB)