The ancient Egyptians used photo-polymerization over 4000 years ago. They created a type of coating that cured when exposed to sunlight for embalming mummies and also as a sealant for their wooden hulled ships.
UVGC’s specialized coating resins are combined with photoinitiators (PI) which allow them to cure when exposed to a light spectrum range of 245nm to 393nm.
Photoinitiators are additives that when introduced to light in the proper spectrum react to form free radicals. These free radicals then react with the double bonds in the coating to form new free radicals.
This causes the molecular weight of the coating to increase through chain reactions with additional acrylate double bonds. As the molecular weight increases, the coating begins to solidify.