Master Chemical Trim TC 239 Paintable Antifoam/Defoamer, 1/2-Gallon Jug
TRIM® TC 239 is a paintable, platable additive used to control foam in metalworking fluids and parts washing systems.
Start by adding 2 ounces of TC 239 per 100 gallons of solution to lower foam. You may find that using less than this will be effective in your system.
Shake or stir well before adding. For best results, premix TC 239 with working solution until it is water-thin. This mixture should be added just up-stream from the foam.
The maximum amount of TC 239 in the system should not exceed 16 ounces per one hundred gallons of metalworking fluid. Using too much TC 239 can cause foam and/or form a residue on the machine, parts, or tools.
Spraying premixed TC 239 directly onto the foam will also knock it down quickly.