In paint spraying operations, circulating water systems or wastewater treatment stages frequently generate large amounts of stubborn foam, a common challenge faced by many factories. This foam not only causes tank liquid to overflow, pollutes the working environment, and increases cleaning costs, but also seriously affects the normal operation of water pumps, reduces wastewater treatment efficiency, and even causes distortion in water quality monitoring, becoming a hidden black hole of cost in the production process.


The market widely reports that many defoaming products suffer from problems such as slow foam-breaking speed, poor durability, easy separation, or adverse effects on paint mist coagulation. To address these specific pain points, Chemi Tech, drawing on in-depth research into surface chemistry, has developed a series of high-efficiency defoamers designed specifically for paint booth wastewater systems. Our solution is not a simple addition but starts from the root causes of foam generation and provides a systematic response strategy.


The specific solution steps are as follows: First, our technical team analyzes the composition of your wastewater, including resin type, additives, and pH value, to accurately determine the causes of foaming. Second, based on the diagnosis results, we match or customize a defoamer with strong permeability and spreading ability from our product library, whose molecular structure can rapidly destroy the foam film wall. The third step is to guide the customer to use dripping or metering pump dosing and to determine the optimal dosing point and initial dosage ratio, usually recommended to be added at the return inlet of the circulating water tank or the wastewater adjustment tank. Finally, establish a continuous tracking mechanism to optimize the daily dosage and ensure excellent foam-suppressing performance even under complex changes in water quality.


We once served a metal products coating company in East China. The company's original defoaming solution was ineffective; foam frequently overflowed into the ditches, and the equipment had to be shut down for cleaning every week. After adopting our customized defoaming solution, the on-site foam was brought significantly under control within minutes of addition, achieving long-term cleanliness of the tank liquid surface. The customer reported that the system's operating stability improved greatly, the maintenance cycle was extended, and the overall treatment cost was reduced by about 20%.


Choosing Chemi Tech means that you gain not just a pail of defoamer, but a complete technical service that runs through diagnosis, matching, application, and optimization. We are committed to helping customers achieve clean, efficient, and economical paint booth wastewater treatment, so that production is free from foam disturbance.