Versatile photoinitiator for radical polymerisation of unsaturated resins upon UV and near visible light exposure. Good performance of curing pigmented formulations and in outdoor applications. it can be formulated with UV absorbers to gain good weather stability, while without harming the cure speed. Good through curing of thick coating film. Gives a clean white appearance in contrast to the off-white colour associated with other long wavelength absorption photoinitiators.
