PL-OB is a highly efficient heat resistant, monomer soluble, chemically stable fluorescent whitener that provides brighter looking colors in a variety of system types.

Typical Properties

Melting Point

N/A 192-208 ºC

Performance Properties

N/A Chemically stable Excellent brightness Heat resistant


N/A Yellow-greenish

Chemical Class

N/A Fluorescent Whitening Agent

Usage Levels

N/A 0.005 – 1.0 %

Bulk Density

N/A 1.26 g/cm3

Typical Applications

N/A PL-OB can be used as a brightening agent in coatings or thermoplastics. It can also be used as a which, when viewed under a black light, can indicate whether or not a uniform coating coverage has been achieved.