A one-part concentrate (45% potassium carbonate) formulated to develop fully aqueous dry film photoresists and photoimageable solder masks. DX-45’s highly concentrated formula is ideally suited for use in feed and bleed systems, resulting in less frequent additions than with more dilute carbonate solutions. Proprietary ingredients enhance loading, help keep equipment clean, and ensure straighter sidewalls, cleaning the foot” of underdeveloped resist. These features result in greater productivity and less down time. “” one-part concentrate (45% potassium carbonate) formulated to develop fully aqueous dry film photore”