SAKURA SOLID PAINT MARKER - GLOW IN THE DARK SOLID PERMANENT PAINT STICK

Solid Marker Glow-In-The-Dark is the first marker of its kind to incorporate safety-grade photo luminescent material for easy Glow-In-The-Dark applications. It can write on, stay on, and glow on smooth, rough, oily, wet or damp surfaces.

Photo luminescent pigments are the basic component of this Glow-In-The-Dark solidified marker. Two types of photo luminescent pigment exist: novelty-grade and safety-grade. Safety-grade pigment glows significantly brighter and longer than novelty-grade pigment after exposure to the same light. 

Please note: the brightness and the duration of the 'glow mark' can be up to 30 minutes, but is dependent upon four factors:

a.) the intensity of the light/energy source the mark is exposed to
b.) the distance of the light/energy
c.) the duration of time which the mark is exposed
d.) and the paint thickness of the mark.