BACT Update Marks Milestone for UV Lithographic Printing as RadTech Pursues Inclusion of EB A newly proposed Best Available Control Technology (BACT) listing recognizes UV lithographic printing. The proposed addition of Non-Heatset, Sheet-fed UV Lithographic Printing to the South Coast Air Quality Management District’s (SCAQMD) BACT Guidelines reflects the growing … [Read more...] about Regulatory News – 2026 Quarter 3

This is the next installment in the ABCs of UV Measurement and Process Control Series of columns. Bands (UV) It is human nature to categorize things. The electromagnetic (EM) spectrum is categorized from short, high-energy gamma rays to long, low-energy radio waves. Most people are familiar with the visible portion (+/- 400-750 nm) because of the associated colors we … [Read more...] about ABCs of UV Measurement & Process Control: Letters B-D

In this study, conversion as a function of dose was measured for a series of (meth)acrylates during electron beam (EB) and x-ray polymerization to characterize the impact of the irradiation mode. Monomer chemistry was shown to be a key variable in the comparison of the two technologies, providing guidance for application choices. Part 1, published in Issue 2, 2026, provided the … [Read more...] about Comparison of EB- and X-Ray-Initiated Polymerizations for Extending Radiation Curing Opportunities, Part 2

In the 1st Quarter 2023 edition of “Professor’s Corner,” we discussed the reaction kinetics of free radical UV polymerization. 1 In the 2nd Quarter 2026 edition of “Professor’s Corner,” we discussed the kinetics of cationic UV polymerization. 2 Both processes involve “chain-growth” polymerization, but they significantly differ in the raw materials used and the reaction … [Read more...] about Thiol-ene UV Polymerization Kinetics