Sand is a very large particle Ultra Blue Glow in the Dark Powder. It's glow color is actually a blue-green, also known as turquoise. It can be used in a variety of mediums including plastic, paint, fiberglass, concrete, wax, and gel.
Brightness and Duration
Ultra Blue Glow in the Dark Powder, although not as bright as its Green counterpart, is still an extremely bright glow in the dark pigment. It is 5 times brighter than the popular green zinc-based glow in the dark products available in most department stores. Technically, it will continue to glow for days. But us humans can see it for about 12 hours after a full charge.
Time vs. Brightness Chart
|Time||0 min||0.5 min||1 min||2 min||3 min||4 min||5 min||6 min||7 min||8 min||9 min||10 min||20 min||30 min|
|Ultra Blue Glow Powder||9416||3460||1700||1205||922||746||626||538||471||417||375||350||175||113|
|Regular Green Glow Powder||1763||433||288||174||126||99||80||68||59||52||46||42||21||13|
|Time||40 min||50 min||1 hr||2 hr||3 hr||4 hr||5 hr||6 hr||7 hr||8 hr||9 hr||10 hr||11 hr||12 hr|
|Ultra Blue Glow Powder||83||63||52||24||13||10||8||6||6||6||6||3||3||2|
|Regular Green Glow Powder||9||7||5||2||1||1||0||0||0||0||0||0||0||0|
*brightness is measured in mcd/m2, as reported by LS-100 instrument after a 10-minute charge from 1000lx.
Earth Aluminate pigments are soluble in water and decompose in acid. This means that they will lose some brightness when mixed into water-based mediums. Acids will completely destroy their glow.
This still means they are great for solvent, oil, or wax based products. They even can me mixed into molten glass or plastic. They can be used in water-based mediums such as paint and concrete, but they will continue to lose a small amount of brightness over time until the water fully evaporates.
Other color pigments in the medium will sometimes shield the glow pigments preventing them from charging as fast or glowing as bright. Therefore, we suggest clear mediums when possible.
Ultraviolet filters in mediums may block the ability for glow pigments to charge. This can both increase charge time or lower brightness depending on the quantity and quality of the ultraviolet filters. Most paint manufacturers will have special order product SKUs for non-ultraviolet filter versions of their paint.
Warning: Many customers try to create a "cheap glow in the dark paint" by purchasing clear paint from a local source and the raw glow in the dark pigment from Glow Inc. The majority of these customers end up frustrated. If you need a paint, then we suggest that you either purchase our premixed paints or follow the instructions in our how-to articles for specific projects.
Ultra Blue Glow Powder actually glows a blue-green color, also known as turquoise. It is a translucent white when not glowing and visible in a lit room.
Daytime Color, Opacity, Transparency, and Translucence
When mixed into a medium, the Ultra line of products are translucent when in a lit room and glow brightly after a charge in a dark room. This means they are almost unnoticeable during the day when used properly. Since the paint does have a slight white tint, it is even more unnoticeable on light or white surfaces. Thicker applications or those on a dark background will still be translucent, but more noticeable. There is no such product as a "daytime transparent" glow paint or pigments as you may have seen advertised. But the Ultra and our other lines marked "almost clear" are relatively close to transparent when used properly. For a more opaque color in a lit room, consider our "Daytime" series.
The raw glow pigment is: Alkaline Rare Earth Metal Silicate-Aluminate Oxide Europium Doped