Defoamer CBC is an silicone-free foam manager that instantly diffuses into aqueous systems. Its stability affords extreme effectiveness in acidic and alkaline baths , providing long-term anti-foaming performances in cleaners, solder strippers, resist strippers, and dry film developers. The TDS suggest to start your trial at 0.1% b.v., which is the equivalence of 1000 ppm and the temperature should be in the range of 21oC to 54oC.
Defoamer CBC was designed and developed for the circuit board industry, which will continue to change to meet the requirements of continuous development of the printed circuit board (PCB) industry with more layers being manufactured, while the spacing between lines are getting smaller and smaller and the lines themselves are getting thinner and denser. The problem of bridging is becoming more prominent. No bridge is formed between the board lines to improve the quality of PCB. The continuous dissolution of the dry film will cause the developer to produce foam during the cyclical showering process. The foam is produced in the developer solution, which is 0.9 to 1.5% sodium carbonate liquor due to the circulatory spray process.
