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Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate is a Type I photoinitiator best known for it's through cure abilities. It is soluble in most monomers, oligomers and pre-polymers but insoluble in H2O.
Unit of Measure

Typical Applications

N/A Coatings for graphic arts, wood, plastics, metals. Printing inks such as inkjet, flexo, screen, litho and dry offset. Adhesives.

Typical Properties


N/A PL Industries

Performance Properties

N/A Excellent in white pigmented systems and thick clear coatings Excellent through cure Low yellowing


N/A Clear yellow liquid powder

Chemical Class

N/A Mono Acyl phosphine

Molecular Formula

N/A C18H21O3P

Molecular Weight

N/A 316.33

Flash Point

N/A 100 ºC212 ºF

Boiling Point

N/A 250 ºC

Specific Gravity

N/A 1.14


N/A Faint, characteristic

Usage Levels

N/A 0.5 to 4.0 %