Photoinitiator: Enhancing Photocuring Processes for Coatings & Adhesives

How to choose a photoinitiator depends on factors like the UV light source, resin type, and desired curing speed, and our experts guide clients through the process of how to choose a photoinitiator for optimal results. When considering how to choose a photoinitiator, first match its absorption spectrum to the UV lamp wavelength—benzophenone works well with medium-pressure mercury lamps, while acylphosphine oxides are ideal for LED UV systems. How to choose a photoinitiator also involves evaluating compatibility with the resin: cationic photoinitiators suit epoxy resins, while free-radical types are better for acrylates. For food-contact applications, how to choose a photoinitiator includes selecting low-migration options compliant with FDA or EU 10/2011 standards. Curing depth is another factor in how to choose a photoinitiator—thick films require photoinitiators with good light penetration. Our technical team helps clients navigate how to choose a photoinitiator, ensuring the selected product enhances curing efficiency and meets application requirements.