Overview
Night glow powder, or phosphorescent powder, is a photoluminescent material that absorbs and stores light energy from natural or artificial sources, then emits it gradually in the dark. Unlike fluorescent materials, it does not require continuous exposure to light to glow. The most common type is strontium aluminate-based (SrAl2O4:Eu,Dy), which replaced older zinc sulfide-based powders due to its superior brightness and longer afterglow. This material is widely used in safety and decorative applications due to its non-toxic, non-radioactive properties. It is valued for its ability to provide illumination without electricity, making it ideal for emergency signage and low-light environments. The powder can be mixed with various binders to create paints, inks, or molded products.
Physical and Chemical Properties
Night glow powder typically appears as a fine, free-flowing powder with colors ranging from green (most common), blue, yellow, or purple, depending on the dopants used. Strontium aluminate-based powders have a density of approximately 3.1-3.6 g/cm³ and are insoluble in water and most organic solvents. They exhibit excellent thermal and chemical stability, withstanding temperatures up to 500°C without significant degradation. The afterglow duration and intensity depend on the quality and composition of the powder. High-grade powders can emit light for 8-12 hours after a few minutes of exposure to sunlight or UV light. The excitation spectrum ranges from UV to visible light (200-450 nm), and the emission spectrum peaks at around 520 nm for green-emitting varieties.
Main Applications
Night glow powder is extensively used in safety-related applications, such as emergency exit signs, pathway markings, and fire escape routes, where reliable illumination is critical during power outages. In the consumer goods sector, it is applied to watch dials, toys, clothing accessories, and decorative items like glow-in-the-dark paints for artistic or novelty purposes. Industrial applications include instrument dials, switches, and control panels in low-light environments. The automotive industry uses it for dashboard markings and emergency tools. Recent innovations include incorporation into textiles and ceramics for aesthetic and functional purposes. Its versatility and energy-free operation make it a sustainable choice for various industries.
Safety and Storage
Modern strontium aluminate-based night glow powders are non-toxic and non-radioactive, unlike earlier zinc sulfide variants that contained small amounts of radioactive materials. However, as with any fine powder, inhalation of dust should be avoided. Proper personal protective equipment (PPE), such as masks and gloves, is recommended during handling to prevent respiratory or skin irritation. Storage conditions are straightforward: the powder should be kept in a cool, dry place, sealed in its original packaging to avoid moisture absorption, which can reduce luminescent efficiency. Prolonged exposure to direct sunlight or high temperatures (above 50°C) should be avoided to prevent gradual degradation of the phosphorescent properties.
B2B Procurement Guide
When procuring night glow powder in bulk, key factors to consider include afterglow duration (typically 8-12 hours for high-quality powder), particle size (finer powders offer better dispersion in binders), and color consistency. Verify the material's compatibility with your intended binder or coating system, as some solvents or resins may affect performance. Suppliers should provide test reports for luminance brightness (measured in mcd/m²) and afterglow time. Pricing varies significantly based on quality; standard grades range from $20-$50 per kg, while premium long-afterglow powders can cost $60-$100 per kg. For large orders, request samples to test under your specific application conditions before finalizing purchases.
Related Manufacturers
- 主营：[]
- 主营：[]
- 主营：鹅卵石、水洗石、荧光石、天津夜光粉多少钱、石英砂、金刚砂、滑石粉、火山石、砾石、石子、白沙子、石墨粉
- 主营：鱼缸砂、夜光石、路面石、上海夜光粉供应商、火山石、鹅卵石、雨花石、洗米石、水洗石、机制石子、水磨石子、胶粘石、石英砂、烘干砂、保温砂、砂浆砂、金刚砂、白沙子、蛭石、荧光粉、天然彩砂、染色彩砂、金刚砂地坪料、透水石子、水刷石石子
- 主营：鹅卵石、雨花石、夜光石、夜光粉多少钱批发、水洗石、彩色石子、火山岩、烘干砂、石英砂、金刚砂、彩砂、鹅卵石切片、蘑菇石、膨润土、面包石、高岭土、微硅粉、硅微粉、重钙粉、白云石粉、火山石粉、轻钙粉、滑石粉、硅酸铝粉、矿粉、粉煤灰
- 主营：光变粉、变色粉、变色材料、夜光粉、温变色颜料、感温变色浆、遇水变色油墨、变色印花材料、白色水性油墨
- 主营：荧光粉、温变粉、感光变色粉、夜光粉、感温变色粉、荧光色粉
- 主营：彩砂、金刚砂、鹅卵石、夜光粉、石英砂、滑石粉、河沙、水磨石、染色彩砂、金玉明砂、水洗石
- 主营：真石漆、沙子全、腻子粉、夜光粉、粘土球、白沙子、烘干沙、膨润土、40目河沙、烘干河沙、水族婚庆、抗裂砂浆、钙粉工业、塑料橡胶、喷砂除锈、环氧草坪、人造沙滩、石粉填充、砂浆抹面、钻井泥浆、公园造景、石粉砂浆、石粉沙子、白色沙子、pvc填充料、河沙园艺
- 主营：阻垢剂、除氟剂、聚合硫酸铁、夜光粉、一水柠檬酸、除臭剂、泡沫清洗剂、葡萄糖酸、酸性清洗剂、过氧乙酸、硫酸铝、磷酸三钠、无水硫酸铝、非氧化杀菌剂、氧化杀菌剂、液碱、高铁酸钾、洁厕灵、过硫酸钾、过硫酸铵、冰醋酸、氢氧化钾、吊白块、碳酸氢铵
- 主营：变色粉、显色粉、荧光粉、夜光粉、光变粉、黄绿粉、防伪油、显色油墨、水印油墨、扩散油墨、温变油墨、隐形油墨、镭射油墨、水性油墨、香味油墨、夜光油墨、消色油墨、镜面油墨、手机电池、大红油墨、紫色油墨、珠光油墨、荧光色粉、水变油墨、无色荧光油墨
- 主营：5070D 弹性粉、大日精化绒毛粉、变色材料、夜光粉、手感剂、涂料油漆、天鹅绒涂料、温变粉、热敏颜料、变色颜料、艺术涂料、油墨专用、触感光油、鞋材印花、可逆光变、黄绿光夜光、PVC 夜光母粒、光敏变色粉、夜光母粒、31 度温变粉、手感粉、涂料甲油、大日精化、5-80um弹性粉、直供绒毛粉UV
- 主营：杀菌剂、酸性清洗剂、碱性清洗剂、夜光粉、过氧乙酸消毒剂、憎水剂、保水剂、渗透剂、醋酸钠、高铁酸钾、硫代硫酸钠、鱼塘增氧片、过硫酸氢钾、聚合硫酸铁、植物除臭剂、水玻璃、道路修补料、液体蛋氨酸、桐油、聚合氯化铝、聚丙烯酰胺、一乙醇胺、防冻粉
- 主营：棕刚玉 白刚玉、氧化铁颜料、云母、夜光粉、复合岩片、金刚砂耐磨地坪材料、鹅卵石雨花石、金刚砂、夜光石、免洗树脂水洗石开通即、棕刚玉砂 微粉、硫化铁、煅烧彩砂、石英砂、硅微粉 石英粉、碳酸钙、玻璃微珠、海泡石纤维、玻璃微粉、树脂砂 悬浮砂、反射隔热粉、碳粉、负氧离子液
- 主营：彩色石子、彩沙、有机覆盖物、夜光粉、火山岩、石英砂、彩色玻璃砂、蛭石、岩片、钙粉、鹅卵石、膨润土、粉煤灰、铝矾土、油田堵漏剂、高岭土、木粉、河沙、石膏粉、珍珠岩、陶粒、金刚砂
- 主营：煅烧高岭土、重钙粉、轻钙粉、夜光粉、滑石粉、膨润土、活性钙、硅灰、硅藻土、绿泥石粉、伊利石粉、白云石粉、石英粉、重晶石粉、活性白土、灰钙、变压器鹅卵石、彩色石子、金刚砂
- 主营：手感剂、珠光粉、温变粉、夜光粉、镭射粉、绒毛粉、金葱粉、光变粉、闪光粉、变色粉、七彩粉、亮片眼影、变色材料、皮革鞋材、美甲饰品、化工颜料、闪光亮片、美甲闪粉、美甲亮片、变色颜料、珠光颜料、异形亮片、儿童餐具、七彩闪粉、无机颜料
- 主营：煅烧高岭土、轻质碳酸钙粉、硅藻土、夜光粉、重质碳酸钙粉、膨润土、硅灰粉、白云石粉、矿粉、火山石粉、滑石粉、粉煤灰、陶土粉、珍珠岩粉、石英粉、玻璃粉、重晶石粉、夜光石粉、变压器鹅卵石、水洗石、夜光石、火山石切片、彩色石子、石英砂、黑色金刚砂、鹅卵石切片
- 主营：洗衣粉、阻燃剂、催化剂、夜光粉、泡花碱、混凝土、燃料油、水溶肥、膨松剂、添加剂、乙酸钠、漂白剂、杀虫剂、醋酸钠、硫酸镁、糖蜜液、洗涤剂、黄松香、全水溶、除锈剂、工业白糖、变形淀粉、除锈污垢、杀菌消毒、印染助剂、氢氧化铝
- 主营：颜料、染料、碳黑、长效夜光粉、荧光粉