Liquid Photo-Imageable (LPI) solder-mask is applied and processed utilizing automated Argus horizontal spray or DP1500 vertical systems. Amitron can process many types and colors of masks. A vertical unit applies LPI ink with computer-controlled squeegies and then "tack" cures the ink, preparing it for imaging. The horizontal system simultaineously sprays the liquid mask on both sides of the panel, for uniform coverage, then tack cures the panel in one continuous process. Once the panel is exposed and developed, it moves through final cure and on to final surface coating.