EQUIPMENT/Cleaner 70 is a concentrated acid cleaner designed for use in developers, resist strippers and other processing tanks. EQUIPMENT/Cleaner 70 is effective as part of a routine cleaning regimen for the removal of soldermask developer residues, hard water scale, and carbonate residues. EQUIPMENT/Cleaner 70 can also be used to clean even the most stubborn residues that are built up in solder mask developers.