An Emerging Technology May Allow Adhesives in Opaque Substrates to be Cured by UV or Visible Light

Adhesives and coatings cured by ultraviolet (UV) or visible light have become valuable tools in modern-day assembly operations, particularly in high-technology industries such as electronics and medical devices. Most UV adhesives are based on free radical polymerization systems with acrylate or methacrylate monomers, although other systems such as cationically cured cycloaliphatic epoxies, vinyl ethers, and oxetanes are known.