luminous pigment

KT-GYG03 SC is a Yellow Green strontium aluminate phosphorescent pigment in the fine 12–25μm particle size range — the standard fine grade in Kolortek's glow-in-the-dark series, designed for coatings, printing inks, plastics compounding, and applications where particle size must remain within tight tolerances for smooth film formation. 

KT-GBG02 is a Blue Green strontium aluminate phosphorescent pigment in the coarse 65–75μm particle size range — a glow-in-the-dark pigment that absorbs ambient light (sunlight, fluorescent, LED) during exposure and releases it as a sustained blue-green glow after the light source is removed. 

Glow in the Dark Pigments are phosphorescent powders that absorb light energy from natural or artificial sources and re-emit it as a visible glow in darkness. Unlike fluorescent pigments, which require a continuous light source to produce their effect, phosphorescent pigments store energy and release it gradually after the light source is removed. They are used across safety, decorative, cosmetic, and industrial applications where passive light emission in dark conditions is required.