Photoinitiator 819 | CAS 162881-26-7

Photoinitiator 819 Product Information

Product Name: Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
Other Names: Photoinitiator 819; Photoinitiator XBPO; Phosphine oxide, phenyl bis (2,4,6-trimethylbenzoy)-; (phenylphosphoryl)bis[(2,4,6-trimethylphenyl)methanone]; Phosphineoxide, phenylbis(2,4,6-trimethylbenzoyl)- (9CI); Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide; Methanone,1,1′-(phenylphosphinylidene)bis[1-(2,4,6-trimethylphenyl)-; Irgacure 819DW
CAS NO.: 162881-26-7
EINECS No.: 423-340-5
Molecular Formula: C26H27O3P
Molecular Weight: 418.46

Physical Properties of Photoinitiator 819

Appearance: Yellowish powder
Assay: >99.0%
Melting Point: 127-134 °C
Package: 20KG CARTON
Main Applications: Pigmented coatings, offset, flexo, and screen inks.

Application of Photoinitiator 819

Photoinitiator 819 can also be used for coloured UV curable plastic coating, UV coating has been widely used in plastic shell of various electronic and household appliances because of its excellent performance and efficient production. But the deep curing of UV coating is not good, the coating density is bad, and the dispersive arrangement of UV resin to the pigment is poor. The appearance of the film is seriously affected, so the traditional construction process is to paint the color primer with solvent based primer first, and then apply UV varnish after baking to improve the properties of the film surface.

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