The dual-wavelength photoinitiation and printing geometry of the light sheet-based process (UV is blue and visible is red). 5

Volumetric Additive Manufacturing

The UV additive manufacturing techniques discussed in this column have focused on approaches in which the part is printed layer by layer in series....
Schematic diagram of a Light-Emitting Diode. Used by permission of Images Scientific Instruments, Inc.

The Technology of UV LEDs

Welcome to the first “Professor’s Corner” of 2026! First, I would like to thank Dr. Gary Sigel of Miltec UV for providing all the...
Solvent-free 3D printed structure

Biodegradable, Solvent-Free Resin for Medical/Biomedical UV-based Additive Manufacturing

By Liz Stevens, writer, UV+EB Technology The medical and biomedical fields increasingly are benefiting from the advanced technologies made possible by UV-cured 3D printing. Additive-manufactured...

YP Highlight #18: Grant Musgrave

Dr. Grant Musgrave graduated magna cum laude from the University of Colorado Boulder with a B.S. in chemical engineering in 2020. During his undergraduate...
Chemical resistance

Innovative Water-based UV Resins for Exterior Applications

By Laurie Morris, senior chemist, and Dr. Terri Carson, technical director, Alberdingk Boley, Inc. Introduction Waterborne (WB) UV chemistry has shown significant growth in interior industrial...
Cured black flexo inks printed on the PET with different oligomers before and after the de-inking process.

UV-Curable De-Inking Oligomers Move the Industry Closer to Circular Plastics

By Endrit Shurdha, senior research scientist, Arkema Sustainability is a Materials Challenge Pressure to improve plastic recycling is increasing, yet progress remains limited. Globally, less than...

Health & Safety Resources from RadTech

RadTech International North America (RadTech) provides resources to members and to the industry regarding regulatory, health and safety updates. Recent postings on RadTech.org offer...
A relative absorbance spectrum of a hypothetical UV-HMPSA, and the hypothetical photoinitiator used in that PSA. It is common for UV-HMPSAs to include additives that absorb strongly in the same wavelength ranges as the photoinitiator used.

Investigation of UV-C LED as a Source to Cure UV Hot-Melt Pressure-Sensitive Adhesives

By Zachary Gatland, product development scientist, Mactac North America Ultraviolet-cured hot-melt pressure-sensitive adhesives (UV-HMPSAs) are acrylic pressure-sensitive adhesives that can be delivered and coated as...

Viscous Lithography Manufacturing: High-Viscosity Resins for High-Performance Parts

By Liz Stevens, writer, UV+EB Technology Supernova, based in Austin, Texas, is redefining additive manufacturing with its Viscous Lithography Manufacturing (VLM) process. By combining its...

Regulatory News – 2026 Quarter 1

Note: Thank you to Jennifer Heathcote, RadTech’s Board of Directors’ Secretary, for collaborating on this issue’s column. Metal Coatings Rulemaking and Win for Test Method The...
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