Product Overview:
Blue-green luminescent pigment is a non-toxic, harmless powder material that absorbs visible light, stores energy, and releases it as a bright, long-lasting afterglow. It can be reused multiple times without losing brightness. As a kind of additive, they can be made into different glow products, such us glow rubble stone, glow pebble stone, etc.
Available Colors (8 Options):
· Popular Choices: Yellow-green, blue-green and sky blue are widely recognized for their long-lasting glow.
· Other Options: Violet, white, orange, red and pink are also available for diverse needs.
Choose our long after-glow luminous powder for a durable, eco-friendly, and vibrant glow experience!
Physical Properties:
Alkaline Earth Aluminate Super Long Afterglow Photoluminescent Pigment (Activated by Rare Earth Elements) - Blue Green |

| Luminous Color | Blue-green |
Appearance Color | Light Green |
State | Solid Powder |
Substrate | Alkaline Earth Aluminate |
Component | Strontium Aluminate+ Rare Earth Elements: Eu, Dy |
Chemical Formula | Sr4Al14O25: Eu2+, Dy3+ |
Excitation Spectrum Wavelength Range | 250-450nm |
Emission Spectrum Wavelength Peak | 490nm |
Specific Gravity | 3.6g/cm3 |
Specification:
Image | Image | Model No. | Luminance | Luminance | Luminance | Afterglow Time | Particle Size |
Night | Daylight | 0min(mcd/m2) | 10mins(mcd/m2) | 60mins(mcd/m2) | Um(D50) |

| 
| QY-BG-01 | 5862 | 558 | 97 | >12hours | 80~100 |
QY-BG-02 | 4944 | 364 | 59 | >12hours | 35~55 |
Note:
1) The data presented above was obtained in accordance with the DIN67510 standard, utilizing a D65 standard light source with an illumination level of 1,000 lux for an excitation period of 10 minutes.
2) The afterglow time refers to the industry standard of 0.32mcd/m2 for escape signs, which is the luminous value that can be recognizable by the human eye.