The UV-curable urethane acrylate system consisted of three
main components; urethane diacrylate oligomers, reactive diluent
monomer and photoinitiator. The manufacturing step of laminate
flooring for this research was divided into two steps; HDF only and
HDF with LPMs. In the case of engineered flooring, the manufactur-ing steps were divided into three steps; plywood only, fancy veneer
bonded on plywood and UV coated on fancy veneer with plywood