- Glow in the dark or UV pigment is composed of strontium aluminate with rare earth elements europium and dysprosium - Pigments come in multiple particle sizes ... 18-25, 30-40, and 45-60 microns. Choice of particle size is based on brightness desired (larger particles glow brighter; smaller particle glow is ~10% less bright) and application (smaller particles result in a smoother finish and may be needed when using an air brush or other spray tools). Note: Other particle sizes are available as a special order; contact us directly for special requests - Luminance for each particle size is measured as mcd/m2 immediately, at 1 min, 10 min, and 60 min 45-60um--~33,000--3600--700--110 30-40um--~30,000--3000--650--110 18-25um--~25,000--2600--550--090 Glow time is 12-24 hours depending on particle size and color. Note: Some sellers charge their samples twice the 5 min @ 1000lx specified by DIN 67510-1 Norm. Be careful! You may be comparing apples to oranges in reported brightness (luminance) from one seller's product to another - Our pigments glow up to 30 times brighter than what is sold in retail stores. - Only a 20%-50% ratio of pigment to medium is required for optimal glow - Pigments can be charged by sunlight, indoor lighting, or UV/Black light and glow very brightly immediately while under UV light. - TechnoGlow provides a 10 year limited warranty on pigments. Glow in the dark pigments will recharge an unlimited number of times for 10 years with only a 5% decrease in luminance, if properly applied - Pigments resist damage from high heat ... to approximately 2000 degrees Fahrenheit - TechnoGlow pigments are considered a non-hazardous substance under OSHA Standard 29 CFR 1910.1200 and have been tested to meet and exceed compliance with ASTM F963-03 on Toy Safety - Pigments have not been tested or approved for use in/with cosmetics - Pigment can be used for almost infinite purposes, only limited by your imagination: Safety, Hobbies, Sports...
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