Irgacure819 often is used in UV coating ,UV ink,UV fiber glass,and fiber optic industry We specialize in this field for several years, ... 819 is applicable to UV-curable varnish and paint systerms, such as for wood, paper, metal, plastic, fiber, as well as ... particularly suitable for curing polyester / styrene resin system for glass fiber reinforced materials. As the long-wave band are photosensitive, ...