All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(2658 products available)
Ready to ShipPhotoluminescent pigment comes in various types suited for different applications. Here are the most popular ones.
ZnS-based pigments
These pigments are made using zinc sulfide and a small amount of copper to enhance their glow properties. Once energized, these pigments produce a bright glow. Typically, they are used in industrial and commercial settings where functionality and high visibility are paramount.
Strontium aluminates
Strontium pigments are highly effective and much brighter than zinc sulfide photoluminescent pigments. They also glow for longer after being energized by light. Common applications for this pigment include safety signage and packaging. In these areas, long-lasting glow visibility is desired.
Calcium sulfide
Because of their relatively low cost, these pigments are commonly used in low-end applications. However, their fluorescence is not as prominent as that of zinc or strontium-based pigments. While fluorescent paint typically appears as a conventional color, the pigments inside will glow when exposed to black light. This is mostly used in novelty products like party decorations or toys.
Gadolinium oxysulphide
These pigments are highly effective. They are also made using gadolinium and an element that is meant to activate the glow (typically terbium or europium). These pigments are mostly used in medical imaging and other areas where strong photoluminescence is required.
Lutetium-based pigments
Lu2O2S is a very rare and expensive mineral. It is, however, highly effective as a photoluminescent pigment. These pigments are mostly used in high-end scientific applications, glow-in-the-dark devices, and medical imaging where great efficacy and durability are required.
Photoluminescent pigment powders are applied in a plethora of industries. This is because they feature multifunctionality, longevity, and effective safety measures, among other benefits. Here are some of the attributes that enable their wide application.
Safety
Photoluminescent pigments are significantly safer than other light-emitting products. This is particularly the case when considering products that use fluorescent or neon pigments. The fact that they are non-toxic makes them safer for use in different applications, including children's products. These pigments also glow brightly in the dark, making them effective in emergency rescue operations.
Longevity
The most common photoluminescent pigments are made of strontium, zinc, or calcium. These are all very durable materials. Consequently, photoluminescent pigments can withstand harsh environments, including exposure to chemicals and abrasion. Besides their durability, they also glow for many years, further enhancing their longevity.
Environmental friendliness
It is common to make photoluminescent pigments from environmentally friendly materials. They commonly consist of materials like zinc, calcium, and strontium. Therefore, photoluminescent pigments contribute to the safety of the environment. They do not contain toxic heavy metals or substances like lead and cadmium. Moreover, they offer energy efficiency by using ambient light instead of electric power.
Customization and versatility
Photoluminescent pigments can be produced in a wide range of colors. They can also be made in varying particle sizes. This ensures they meet the specific needs of diverse applications. In addition, their versatility is unmatched. They can be included in plastics, coatings, inks, and even concrete structures.
Superior optical functionality
Photoluminescent pigments feature especially high opacity and contrast. This enables them to outperform many other decorative or functional materials. The pigments also possess superb coverage. They can mask underlying colors or patterns while effortlessly absorbing and emitting light.
Photoluminescent pigments are standard photoluminescent materials used in industrial settings. These include afterglow pigments that mark emergency exits, stairways, and numerous evacuation routes. The pigments offer excellent visibility in dark settings, particularly during power failures or emergencies. That makes it easier for employees to evacuate safely and efficiently when the situation demands it.
Moreover, the pigments improve the safety of hazardous work areas, machinery, and personal protective equipment (PPE). For example, the pigments can be included in safety vests or helmets. These features will mark dangerous zones and ensure visibility in low-light or no-light environments.
In warehouse management, photoluminescent pigments are commonly used in inventory management systems. They help workers quickly locate products in low-light areas. The pigments have also found a niche in industrial maintenance. They are included in maintenance schedules and service equipment. The pigments mark critical equipment components or areas that need periodic care or inspection.
Skeletal photoluminescent pigments are also applied in making temporary markings on construction surfaces. This helps workers differentiate between various sections. That reduces the risk of hazardous accidents on-site, especially in low-light working conditions. And because they are not permanent, they do not alter surfaces once the project is completed.
Lastly, photoluminescent pigments are commonly used in new photoluminescent concrete that is applied in different structural elements. This improves visibility and safety in road construction, tunnels, pavements, and other outdoor structures. As a note of all the convincing advantages mentioned, photoluminescent pigments are a must-have in multiple industries because of their multifunctionality, durability, and effectiveness in dealing with safety concerns.
Brightness/fluorescence
Photoluminescent pigments can be produced with varying fluorescence intensity, measured in millicandelas per square image. This is the amount of light the pigment emits per square inch. Various factors, such as the concentration of the pigment and the light used to charge it, will affect the brightness.
Particle size
Photoluminescent pigments are usually available in a range of particle sizes. For example, available sizes go from 5 to 50 micrometers. Large particles tend to produce rougher surfaces and have improved glow efficiency. Smaller particles will have a smoother finish and better dispersion in solvents or resins. The ideal particle size will depend on the application and end-use effect required.
Color
Photoluminescent pigments are typical of several colors. Typical colors include green, blue, and yellow. Gold orange and red are also common, although less frequent. The color to be emitted is greatly affected by the type of material and the element dopants used in making the pigment.
Charge time
Generally, photoluminescent pigments need to be charged by exposure to ambient light. It can be natural daylight or even artificial lighting. Various pigments will vary in their light absorption. Their average charge time ranges anywhere from 30 minutes to 2 hours.
Glow duration
The average duration of pigment glow ranges from 30 minutes to several hours. This is particularly the case for zinc sulfide-based pigments. Strontium and calcium-based pigments can glow even longer, ranging up to 12 hours. This depends on the ambient lighting conditions.
The most common way to apply photoluminescent pigments is to mix them with a medium suited for the specific application. This could include polymers, resins, paints, or concrete. Once this is done, the mixture should be applied to the desired surface. Depending on the medium, the mixture can be sprayed, painted, or incorporated into the material itself.
Once applied, the pigment will need to be charged with a light source. This can be done by exposing it to ambient light. Once charged, the pigment will emit a glow for the stipulated duration. The brightness and duration of the glow will depend on the type of pigment used and the application factors, such as the thickness of the coating.
Glowing materials that utilize photoluminescent pigments usually require minimal maintenance. The durability of these pigments means they can withstand environmental factors like chemicals, UV exposure, or physical wear. Although the pigments are quite strong, it is crucial to keep the surface on which the pigments are applied free of dirt, dust, or other debris. This will ensure that the glow effect is not compromised.
For instance, if the pigments are applied indoors, a standard cleaning method will suffice in maintaining the area. Outdoors, cleaning might require pressure washing to deal with environmental elements like debris, weathering, or exposure.
As for repairs, photoluminescent pigments that have been incorporated in long-lasting materials like concrete or coatings will often not need repairs. If the application is in more temporary products like paint or markers, then the mediums will need to be reapplied after a certain period.
Material composition
Different photoluminescent pigments are composed of various materials. For example, photoluminescent pigments made from zinc sulfide are usually cheaper than other alternatives like strontium or calcium sulfide. Nonetheless, they are not as bright and will emit light for a shorter period. Strontium pigments are more expensive but will glow longer and brighter than zinc pigments. Thus, depending on the budget and glow duration required, one can opt for either.
Water resistance
Photoluminescent pigments are predominantly water-resistant. This means that the glow will not be affected if the pigments are exposed to rain or high humidity. Nonetheless, a sealant is always recommended when applying the pigments outdoors. This will help protect them from events that can cause abrasion or wash away part of the pigment.
Quality of adhesion
In outdoor applications, adhesive quality will be critical to ensure the photoluminescent pigments remain effective despite weather change. Poor adhesion will lead to the pigments being washed away, whereas quality adhesion will keep the pigments intact regardless of the conditions.
Distribution density
Different photoluminescent pigments have different distribution densities. This affects how their glow appears on a surface. Higher density pigments will typically appear brighter and more even than low-density pigments, which may appear blotchy or dull.
Quality and safety can be assured by choosing high-quality photoluminescent pigments from reputable suppliers like Alibaba.com. Always look for pigments that meet relevant safety standards and certifications. Also, consider the required glow duration, brightness, and material compatibility for the specific application before making a choice.
Avoid low-quality pigments. While they might be cheaper than other alternatives, they are not as effective. Thus, they will compromise the quality of the end product. Nonetheless, ensure the price is right and that the pigments are effective. Thus, if they are applied in industrial applications, specifically for photoluminescent floor markings, they will be bright and durable.
As mentioned earlier, photoluminescent pigment products usually require minimal maintenance. To keep them glowing, ensure they have sufficient light exposure. Also, keep the surface clean to ensure the pigments can effectively bond with it. Maintain the quality of the glow by periodically inspecting the pigments for signs of wear, damage, or reduced effectiveness. If wear is noticeable, then consider replacing the pigments or reapplying a new batch.
A1. When properly applied and maintained, photoluminescent pigments can last many years. For example, pigments applied in photoluminescent concrete can last 10 years or even more. This is more so if the pigments are formulated for outdoor use and are resistant to environmental factors like water, UV exposure, and abrasion.
A2. Yes, photoluminescent pigments work indoors. All indoor activities need to have the pigments exposed to a light source for at least 30 minutes. Once exposed, the pigments will emit light for a minimum of 30 minutes. Indoors, the glow duration may be shorter or longer, depending on factors like the type of pigment, indoor lighting conditions, and wall color, among others.
A3. Yes, photoluminescent pigments can be mixed with other materials. Photoluminescent pigments can be added to various materials, including paints, concrete, plastics, and even epoxy resins. This allows the pigments to be applied in diverse applications and industries.
A4. Yes, photoluminescent pigments are eco-friendly. Most of these pigments are made from non-toxic, naturally occurring minerals like zinc, calcium, and strontium. While there are a few synthetic variants, the majority of photoluminescent pigments are made from sustainable and environmentally friendly materials.
