Irgacure 907 2-Methyl-1[4-(methylthio)phenyl]-2-morpholinopropan-1-one 71868-10-5 Ciba Photoinitiator Acrylic/Acrylate Resins Vinyl Coatings >> UV / Radiation Curing IRGACURE 907 is a highly efficient photoinitiator which is used to initiate the photopolymerisation of chemically unsaturated prepolymers, e.g. acrylates, in combination with mono- or multi-functional vinyl monomers. IRGACURE 907 is especially suitable for pigmented UV curable systems. IRGACURE 907 may be used after adequate testing alone or in combination with suitable coinitiators, such as IRGACURE 184, or photosensitizers, such as thioxanthones, for UV curable inks and varnishes for applications on paper, metal and plastic materials. Its high absorbance makes it especially suitable for UV curable inks and pigmented coatings. Imaging applications in the graphic arts (e.g. offset and screen inks, printing plates, etc.) and in the electronics industry (e.g. photoresists, solder masks, etc.) may be of specific interest. The amount of IRGACURE 907 required for optimum performance should be determined in trials covering a concentration range. Photoinitiator which is used to initiate the photopolymerisation of chemically unsaturated prepolymers, e.g. acrylates, in combination with mono- or multi-functional vinyl monomers. Suitable for pigmented UV curable systems. May be used alone or in combination with suitable coinitiators or photosensitizers, such as thioxanthones, UV curable varnishes for applications on paper, metal and plastic materials. High absorbance. Suitable for UV curable pigmented coatings. Recommended usage level: 0.1-1% for clear coatings.