2-hydroxy-2-methyl-1-phenyl-1-propanone is a fast curing type-I photoinitiator. It is soluble in most monomers, oligomers and pre-polymers but insoluble in H2O.
Unit of Measure

Typical Properties

Specific Gravity

N/A 1.08

Melting Point

N/A 4 ºC39 ºF

Performance Properties

N/A Excellent through cure Very fast curing


N/A Pale yellow liquid

Chemical Class

N/A α-hydroxyketone

Boiling Point

N/A 81 ºC


N/A Faint, characteristic

Abs. Peaks

N/A 245 280 331

Usage Levels

N/A 0.5 to 5 %

Typical Applications

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