$4.93
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Please note this is a raw pigment intended to be dispersed into a liquid medium to make paints. Our raw pigments are not meant for use in cosmetics and are not cosmetic grade. Certain pigments disperse more easily than others in certain liquid mediums. For those difficult to disperse into a liquid of your choice, they will need to be ground by a muller or a mortar and pestle into the medium.
Safety note: Handle all dry pigments with care. Work slowly to avoid generating airborne dust and wear a dust mask for extra protection. Also avoid getting the dust all over your hands. Latex gloves are good at providing skin protection without "getting in the way".
This is the Green Phosphorescent pigment (phosphorescents are more expensive than fluorescents).
This listing is for a Phosphorescent pigment. When mixed with a paint medium it's commonly called "glow-in-the-dark" paint. Unlike fluorescent pigments they are inorganic (most fluorescent pigments are organic).
Fluorescents pigments are bold colors that stand out in ordinary light as brighter than most other colors in an incandescent environment and that also "fluoresce" in a blacklight environment. The Phosphorescent pigments that we carry are zinc sulfide based. There are other much more expensive and long lasting materials like strontium aluminate which can glow for 10 times longer than zinc sulfide. I'm not sure of the the health risk with it. These zinc sulfide pigments are non-toxic, but still handle them slowly and carefully to avoid getting dust in the air. The NFPA diamond gives them "0" for all three categories, health, flammability, and reactivity, which are the best ratings ("4" is the worst).
Here is some background terminology and definitions that will help you understand what fluorescent and phosphorescent pigments can and cannot do:
"Luminescence" is the encompassing term for the color effects of the terms below.
"Photoluminescence" is a type of "Luminescence".
"Fluorescence" is a type of "Photoluminescence".
"Phosphorescence" is another type of "Photoluminescence".
Under the heading of photoluminescence are two kinds of luminescence that are most relevant to the arts and crafts world. One is fluorescence and another is called phosphorescence which is what this listing is for. The two are both similar and different in practical effects. The similarity appears mostly when both are viewed under black light (or UV; black light actually has a wider spectrum and is technically "UV-A" light).
The main difference between fluorescent and phosphorescent pigments is that phosphorescent pigments will give off light in the dark after absorbing incandescent or UV light. It's the "glow-in-the-dark" phenomenon.
Fluorescent pigments will only give off light in the light. The light they give off is bright and bold, ie "neon". In the dark they do not give off light. In blacklight they give off a light that is similar to phosphorescent light; it is a strong "glowing" light.
Another difference between the two is that phosphorescent pigments are inorganic while fluorescent pigments are most often organic (but can be inorganic). Inorganic pigments are almost always more lightfast than organic pigments. Fluorescent pigments will fade in UV light from sunlight in a shorter time period. They are also not as resistant to heat.
Also, Fluorescent pigments immediately give off light they've absorbed (at a longer wavelength, and lower energy than that absorbed). It is a "fast" phenomenon.
Phosphorescent pigments do not immediately give off the light they absorb. It's a slower phenomenon, both of absorption and of re-emission (which may occur for up to several hours at a lower intensity after the light source is turned off).
The manufacturers of both fluorescent and phosphorescent pigments advise not to intermix different colors because of unpredictable results. Don't mix fluorescent red with fluorescent yellow for example (it is OK to mix non-fluorescent with fluorescent colors).
Here's a Wikipedia article for "Luminous Paint" (phosphorescent in this instance) { https://en.wikipedia.org/wiki/Luminous_paint }:
"Phosphorescent paint is commonly called "glow-in-the-dark" paint. It is made from phosphors such as silver-activated zinc sulfide or doped strontium aluminate, and typically glows a pale green to greenish-blue color. The mechanism for producing light is similar to that of fluorescent paint, but the emission of visible light persists long after it has been exposed to light. Phosphorescent paints have a sustained glow which lasts for up to 12 hours after exposure to light, fading over time.
This type of paint has been used to mark escape paths in aircraft and for decorative use such as "stars" applied to walls and ceilings. It is an alternative to radioluminescent paint. Kenner's Lightning Bug Glo-Juice was a popular non-toxic paint product in 1968, marketed at children, alongside other glow-in-the-dark toys and novelties. Phosphorescent paint is typically used as body paint, on children's walls and outdoors.
When applied as a paint or a more sophisticated coating (e.g. a thermal barrier coating), phosphorescence can be used for temperature detection or degradation measurements known as phosphor thermometry."
Another Wikipedia article on phosphorescence { https://en.wikipedia.org/wiki/Phosphorescence }:
"In simple terms, phosphorescence is a process in which energy absorbed by a substance is released relatively slowly in the form of light. This is in some cases the mechanism used for "glow-in-the-dark" materials which are "charged" by exposure to light. Unlike the relatively swift reactions in fluorescence, such as those seen in a common fluorescent tube, phosphorescent materials "store" absorbed energy for a longer time, as the processes required to re-emit energy occur less often.....Common pigments used in phosphorescent materials include zinc sulfide and strontium aluminate. Use of zinc sulfide for safety related products dates back to the 1930s. However, the development of strontium aluminate, with a luminance approximately 10 times greater than zinc sulfide, has relegated most zinc sulfide based products to the novelty category. Strontium aluminate based pigments are now used in exit signs, pathway marking, and other safety related signage"-
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Feb 26, 2024
Very good quality, would buy again!
Whopper Sandwich Monarch
Oct 16, 2023
I made a bunch of Halloween pieces with this. The glow is very bright.
Alice Ruhl
Jan 20, 2022
Exactly as described and pictured. Just what I needed for my project.
Matt Pittman
Oct 22, 2020
Really bright and beautiful
Patience Steltzer Bennett
May 30, 2020
Best quality . Purchasing few times. No problem. And will order more. Thanks.
Sadeghi-Ray
