OnColor™ NiteBrite™ Glow in the Dark Colorants

OnColor™ NiteBrite™

Add a glow-in-the-dark effect to your products

OnColor™ NiteBrite™ phosphorescent concentrates provide a glow-in-the-dark effect that can last as long as 10 hours. The length of glow time depends in part on geometry, thickness and loading of the active ingredient.


OnColor NiteBrite colorants are available in three glow colors: yellow, aqua and violet. Although OnColor NiteBrite colors are naturally light yellow in daylight, a variety of pastel hues can be formulated that maintain the glow-in-the-dark effect. OnColor NiteBrite colorants are available in pelletized concentrate or dry color powder forms, and are formulated to suit specific resin systems.

The letdown ratio required varies with part thickness and desired effect. OnColor NiteBrite colorants are formulated to be compatible with injection-molded grades of your specific resin system.

Some molding adjustments, such as lowering back pressure, reducing cycle time and adjusting temperature profile, may be required to achieve the maximum effect because of the colorant shear sensitivity.

Typical applications include:

  • Safety markers
  • Toys
  • Sporting goods
  • Transportation