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NEW Glow in the Dark Powders!

Technical Information
Glow Powder (also known as Glow-In-The-Dark Powder) is actually photo-luminescent pigment, which is the basis for almost all glow in the dark products. These pigments are non-toxic and non-radioactive.
In the past few years an incredible advance in self emitting light technology has occurred. We are all familiar with the yellow-green glow in the dark products from the seventies with a short glowing period (Short Glow Powder) and characteristic color. Safety has been a very important application for these products as well as special effects. Imagine, a water proof, non-electrical, rechargable, item that is resistant to the damaging effects of the sun.
Technical Guide : This an in-depth look at each phosphorescent product with technical information. Use this guide if you are familiar with glow in the dark powders and want to find a particular one to fit your needs.
  • Basic Guidelines: The Basic Guidelines gives you enough information to get started in working with the phosphorescent pigments. Follow these rules to maximize the effectiveness of the products.
  • FAQ's : Frequently Asked Questions are always helpful and some of this information can be found elsewhere, but it gets you up to speed quickly with a simple question/answer format.
  • How To's : The How To section tells you how to make glow in the dark paint, phosphorescent inks, and glowing plastics.

  • Glow Powder Basic Guidelines
The basic structure of the particle is crystalline, which has a tremendous capacity of absorbing, storing, and emitting light. The crystals absorb any ambient light, including regular indoor light. This provides incredible potential in safety, novelty, and industrial applications. A whole new era in luminous materials have arrived.
Properties of our Glow Powder
1. Non toxic and non radioactive.
2. Longer afterglow.
3. Afterglow and brightness, ten times stronger than Zinc Sulfide powder.
4. Shelf life of more than 10 years.
5. Comes in 11 different colors.
6. Weather resistant.
7. Glow Powder does not change the characteristics of the medium.
8. Water-based and non-water based available.
These Super Phosphorescent Pigments for solvent-based mediums can be mixed in just about any medium that is non-aqueous. Mixing these pigments with water (or even ambient moisture in the air) will damage the particles and decrease glow. The reds and oranges will produce a smell when they come in contact with moisture.
These Glow Powder (or phosphorescent pigment as it is also called) Basics gives you some guidelines as to the usage of the Glow Powder products. These are just guidelines and the user should use their best judgment in working with the pigments.
Basic Guidelines For Using Glow Powder.
1. More powder, higher percentage will produce brighter, longer glow.
2. Use a white, or light color as a background for best results. Any color other than white will diminish glow.
3. Use the clearest vehicle possible. Any pigment in the vehicle will decrease the brightness and length of glow.
4. The thicker (to a point) the layer of Glow Powder will produce longer and brighter luminosity.
5. Try to prevent moisture in the manufacturing process.
6. Do not use vehicle with high acidity.
7. Do not grind the Glow Powder, it will destroy the crystal structure and therefore decrease luminosity.
8. The larger the particle size of the Glow Powder the greater the glow.
9. Ratio of Glow Powder to medium is from 10% to 50% by weight depending on application and manufacture process.
  • Two of the most frequently asked questions in regards to Glow Powder are:

What can I do with it?

  • The problem is that you can do almost anything with it. You can mix it into a plethora of mediums such as wax, paint, caulking, ceramic glaze, plastics, glue etc. It has numerous industrial applications for safety and fun for home use in arts and crafts. It is the all purpose Glow Powder in its truest sense. These Glow Powders have been used in everything from candles, printing, shirts, and of course paint.

How much powder does it take?

  • This universal question has one answer. It is up to you. The amount of powder to medium will depend on how much glow desired, cost effectiveness, type of application method etc. The Basic Guidelines dictate from 10% to 50% by weight. If you are producing a low cost item, then a lower percentage would work best for you. If you are screen printing shirts and want to make only one pass, a higher percentage would work better. Please also consider the particle size of the powder and the color of the surface to which the medium is going to be applied. Experimentation will be the best method of determining ratios after following the guidelines found on this site.
  • Other Frequently Asked Questions About Glow Powder.
What is Glow Powder? Glow powder is actually called phosphorescent pigment. It is the basis of just about all glow in the dark products. This powdery substance absorbs light and then re-emits it over a length of time.
Is the glow powder safe? Yes the glow powder is non-toxic and non-radioactive. As with any powder substance (including flour or plaster) you will not want to breathe it for long periods of time. For home use these pigments are really safe.
How do I use Risk Reactor's Glow Powder? You can use the glow powder in just about any application. Mix it with paint, caulking, glue, plastic, inks, wax, plastisol, etc. Limitations are endless, just follow the basic guidelines (see Basic Guidelines) to make sure you get the right pigment for your application.
What does the particle size have to do with anything? The larger the particle size the brighter and longer the glow. Our clients use the smaller particle size when the process of manufacturing dictates that need. Risk Reactor ships only the largest particle size unless a specific request is made. If you are screen printing or have settling problems a smaller particle size might help.
How does it get charged? The powder is a photo-luminescent pigment which gets its energy from photons or light. Any ambient light will charge the powder. Sunlight works the fastest but black light will also charge the pigment very well.
How many times can you charge it? You can charge the pigment an infinite amount of times as long as you follow the basic guidelines (see Basic Guidelines) you will maximize the usage.
Will sunlight ruin the glow powder? All of our glow products with the exception of our short glow are very stable outside and can last many years. The Short Glow products can not withstand long exposure to outside elements.
Can you put the powder in water? We carry PPWB-10. PPWB-00, and PPWB-06 pigments which can go into water based mediums. The other pigments will start deteriorating after exposure to any ambient moisture including humidity.
How much glow powder goes into a ounce, pint, gallon? We recommend to start with around 15 grams of glow powder to an ounce of paint, 256 grams (10 ounces) of pigment per pint and 2048 grams (2 kilograms, 4.4 pounds) per gallon. After working with the material you can adjust the ratio to suit your particular needs.
  • How To Use Glow Powder.
The How To section allows give you enough information to get started in making your own inks, paints, plastic etc. These are just guidelines and only trial and error in your environment would dictate a correct process.
How to Make Glow Ink and Paint:
These are the guidelines to making luminous ink, phosphorescent coatings, glow in the dark screen print ink. Your application may require some adjustments to the technical material below. Please read the Basic Guidelines also for more information.
1. Mix the Phosphorescent Pigment into clear vehicles. Any pigment in the medium will obscure the luminosity.
2. Viscosity of ink should be about 3000-5000 micro-poises. During printing viscosity should be adjusted by using a diluting agent based on printing speed.
3. Apply a white background coat under the luminous material layer to improve afterglow. Having the glow on top of any other color will diminish the glow strength.
4. 100 um film thickness is required to achieve the best results. If you want the maximum luminous effect use 130-150 um thickness. Sometimes more than one pass will be necessary to obtain the level of glow required.
5. If screen printing clothes try to use white fabric, any other color will decrease the glow. If using a non-white fabric, place a white layer below the luminous layer for the best glowing effect.
6. Due to the nature of the Glow Powder, an anti-settling agent may be required. Photo-luminescent pigment is heavier than most vehicles and settling might occur. Therefore use a viscous vehicle or an anti-settling agent, but always stir before printing.
7. One kilogram of dry Glow Powder can cover an area roughly 3.3 square meters or 12 square feet with a 150 um thick film. One gram covers approximately 25 square centimeters.
8. Use inks with pH levels around 7.
9. Generally speaking 10%-50% by weight is the best ratio for mixing Glow Powder to a vehicle. The percentage depends on how much glow is desired, how many passes you want to make, the screen mesh size, etc. Determine the thickness, size, and resolution of the printing area. If the base is a color other than white you may need to add more Glow Powder to achieve desired results.

How to Make Glow Plastic:
These are the guidelines for using Risk Reactor's Glow Powder in Plastic.
1. You can mix Glow Powder in with acrylic, polyester, polypropylene, epoxy, PVC, polyethylene (HDPE, LDPE etc.) polymers.
2. You can extrude, mold, dip and cast this material.

Technical Support 212-367-7561 - Call if you need information regarding your specfic projects!