In the metalworking field, excessive coolant foam is a common and troublesome problem. Large amounts of foam not only overflow the tank, causing waste and environmental pollution, but also seriously affect machining results. Foam reduces the pumping efficiency of the coolant and undermines its cooling and lubricating performance, which may in turn accelerate tool wear, lower the surface finish of workpieces, and even trigger false alarms in equipment monitoring systems.
The market widely faces this pain point: many antifoams work well at first but have poor persistence and quickly fail in the circulation system, or they are poorly compatible with the coolant system, causing separation and precipitation that instead harm liquid stability. To meet these needs, and drawing on deep research into surface chemistry, Chemi Tech has developed a series of high-performance coolant-specific antifoams.
Our solution follows three core steps. The first is precise diagnosis: by analyzing your coolant type (such as emulsion, semi-synthetic fluid or full-synthetic fluid), water hardness, system circulation intensity and the specific station where foam occurs, we identify the main cause of the foam. The second is custom formulation: we offer a range of antifoams, including silicone composite and non-silicone polymer types, that quickly penetrate the foam film and destroy its stability while remaining compatible with the system over the long term, avoiding secondary precipitation. The third is optimizing the dosing plan: we guide customers to combine initial dosing with continuous micro-dosing so that foam stays effectively controlled throughout the entire machining cycle.
For example, we once served a precision parts manufacturer. After its production line adopted a certain brand of semi-synthetic coolant, large amounts of stubborn foam appeared at the high-pressure jetting station, seriously interfering with the visual monitoring system. After an on-site assessment, our technical team recommended the Chemi Tech DF-215 antifoam. This product offers fast foam-breaking ability and excellent pressure resistance. The customer dosed it at the recommended ratio in the reservoir for the initial addition and installed an in-line drip device in the circulation line. After implementation, the foam was brought significantly under control within 24 hours and the monitoring system returned to normal. More importantly, after four weeks of continuous use, all performance indicators of the coolant remained stable with no separation or residue, and the customer expressed satisfaction with the lasting antifoaming effect.
Choosing Chemi Tech means you gain not just a product but a systematic solution to foam problems. Our products help you improve machining quality, protect equipment and reduce maintenance costs, ultimately safeguarding a smooth and efficient production process.