Hi all, I mounted some smd parts using a hot air tool and solder paste. After installation, I cleaned the pcb with alcohol. That leaves a white residue on the solder. I can clean that off with a stiff brush, but I need to be aggressive and can't get to all the parts. What am I doing wrong? Can I use acetone, I have one regular through hole pot on the board, otherwise smd, ceramic caps, semiconductors and resistors. I'm using a needle point dispenser, so I control application. Mikek
- posted
5 years ago