Due to their advantages from an environmental point of view (i.e. reduction of volatile organic compounds (VOC)), photocurable finishes should be extensively used for industrial wood joinery in the near future. However, several problems are reported, particularly the poor durability of the finishing system. In the present work, the curing reaction of acrylic resins containing some improved photoinitiators was studied by means of photocalorimetry under monochromatic irradiation from 366 to 450 nm. The results show that finishes can be cured even under daylight so that they could be directly applied on site in case of restoration.