Customer Background: A large PCB manufacturer in South China, producing approximately 3 million square feet of multilayer boards and HDI boards annually. The original cleaning process used traditional chlorinated solvents, with an annual cleaning agent consumption of about 120 tons.
Challenges Faced: 1. Chlorinated solvents are controlled ODS substances, facing a complete ban after the July 2026 HCFCs prohibition; 2. High solvent evaporation, strong workshop odor, high occupational health risks; 3. Waste liquid classified as hazardous waste, with annual disposal costs as high as 800,000 RMB; 4. Solvent swelling effects on certain inks and resins affecting product yield.
Tansochem Solution: Recommended switching to TS-100 Precision Electronic Hydrocarbon Cleaner + vacuum cleaning process. After one month of small-batch trial production verification, the cleaning results met or exceeded the original process standards, with no adverse effects on substrate materials or inks.
Results (6 months after switch): Cleaning yield rate improved from 97.2% to 99.5%. Annual waste liquid disposal costs reduced from 800,000 RMB to 120,000 RMB (an 85% reduction). With hydrocarbon cleaner reused through distillation recovery, annual procurement volume dropped from 120 tons to 18 tons. Total costs reduced by 40%. Workshop working environment significantly improved, with VOC concentration reduced by 92%, passing customer environmental audits.