21 Step Sensitivity Guide for Screen Exposing

21-Step Sensitivity Guide for Screen Exposure | Standardize Exposure Times The 21-Step Sensitivity Guide is designed for creating screen printing frames, helping determine the optimal UV exposure time for your screen mesh and emulsion. Using this exposure calculator prevents under- or over-exposure, ensuring consistent stencil quality. Measuring 0.5" x 5", this guide features 21 progressively denser steps in increments of 0.15. It standardizes exposure and processing for photosensitive materials, including lithographic plates, photopolymer plates, silk screen stencils, printed circuit boards, film positives, and photo print papers. Additional Information: For detailed usage instructions, contact Lawson at 314.382.9300.