エブリグロー^® Red Phosphorescent Pigment

Our Red Glow Phosphorescent Pigment is an advanced Yttrium oxysulfide doped with Europium specifically engineered to emit a deep, striking crimson glow. Unlike common green or blue pigments, red phosphorescent pigment offers a unique aesthetic and high-contrast visibility, making it a favorite for safety markers, automotive accents, and high-end artistic applications.

 

Red phosphorescent pigment Key Features & Benefits

• Rare & Distinctive Color: Produces a vivid red luminescence that stands out against standard safety colors.
• Daytime vs. Nighttime Appearance: Typically appears as an off-white or pale red powder in daylight, transitioning to a deep ruby glow in total darkness.
• High Performance: Formulated with rare-earth doped Europium to provide a more stable and longer-lasting glow than older zinc-sulfide alternatives.
• Chemical Stability: Encapsulated versions available for use in water-based mediums to prevent oxidation and ensure longevity.
• Heat Resistance: Red phosphorescent pigment stable at temperatures up to 500°C ( 930 °F ), making it suitable for plastic injection molding and high-heat coatings.

Red Phosphorescent pigment Technical Specifications

Property	Details
Chemical Composition	Yttrium oxysulfide phosphor doped with Europium ( Y2O2S: 欧州3+
Particle Size	D50: 20-35 microns
Excitation Wavelength	200nm – 450nm (UV and visible sunlight)
Peak Emission	approx. 620nm – 650nm (Red spectrum)
Glow Duration	2–6 hours (depending on charge and concentration)
Day Color	Off-white

Red phosphorescent pigment Applications

1. Safety & Emergency Signaling

Used for specialized warning signs where red is the internationally recognized color for “Stop” or “Danger,” ensuring these symbols remain visible during power outages.

2. Automotive & Marine

Ideal for custom paint jobs, rim coatings, and dashboard accents. The red glow provides a sophisticated, aggressive look for high-performance vehicles.

3. Sports & Outdoors

Incorporated into fishing lures, golf balls, and camping gear to assist in recovery and visibility during dawn, dusk, or night activities.

4. Arts & Crafts

Popular for resin casting, jewelry making, and “lava” effects in furniture (river tables). It is highly effective when mixed with clear epoxies, acrylics, and glazes.

Usage Instructions & Tips

• Mixing Ratio: For optimal results, use a ratio of 15% to 30% pigment by weight relative to the clear binder/medium.
• Background Matters: Always apply over a white or reflective background. A dark background will absorb the glow, significantly reducing the visible output.
• Avoid Grinding: Do not use a ball mill or heavy grinding equipment, as mechanical stress can break the crystal structure and “kill” the glow capability.
• Charging: Red pigments require a stronger light source to reach full saturation compared to green. 紫外線 (blacklight) or direct sunlight is most effective for a quick charge.

Safety & Handling

• Non-toxic and non-radioactive.
• Avoid inhalation of fine dust; use a dust mask and eye protection during mixing.
• Store in a cool, dry place in a sealed container to prevent moisture absorption.

Can red phosphorescent pigments be used in outdoor applications?

Key points for outdoor use

1. Light resistance & weatherabilityMost red long-afterglow pigments are based on calcium sulfide / sulfide systems, which are less stable outdoors:
   • Easily affected by moisture, rain, and high humidity
   • Tend to darken, fade, or lose glow brightness over time under UV sunlight
   • Not as durable as green strontium aluminate pigments for long-term outdoor exposure
2. • Use surface-coated / encapsulated red phosphorescent powder (waterproof, UV-stabilized)
   • Mix with UV-resistant resin, topcoat, or outdoor varnish
   • Avoid direct long-term soaking in water
   • Use in shaded or semi-outdoor areas for longer lifespanImprovement methods
     To use them outdoors:
3. Suitable outdoor applications
   • Safety signs, emergency markers
   • Road marking, decorative paving
   • Architectural decoration, night signage
   • Crafts and outdoor artworks (with proper sealing)
4. Summary
   • Can be used outdoors, but not ideal for long-term open-air exposure
   • With proper coating and protection, they work for medium-term outdoor use
   • For extreme outdoor durability, green/blue glow pigments are still more reliable