... ,uv resin,uv adhesive and so on Product Name Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxideByname IRGACURE 819Formula C26H27O3PMolecular Weight 418 ... ideal weather-based UV-curable coqtings photoinitiator required.As the trigger effect of photoinitiator depends largely on the different formulations,so ... adding the amount of testing is to get through. Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide