Products

Engineered Glass Materials

Ornamental and additives for special paint

Phosphorescent Glass Beads

Phosphorescent Glass Beads have properties of phosphorescence and retro-reflectivity.
Benefits
  • Phosphorescence property and retro-reflectivity provide high visibility.
  • Excellent waterproof property that other phosphorescent products do not have.
Applications
  • Additives for special paints : High visibility, Optical ornamental effect, Paints for outside and water base paints for specific road marking or ornament
  • Point decoration for ornament:Sparkling effect
  • Others
● Large Glass Beads Specifications
Phosphorescent Glass Beads consist of glass beads coated with phosphorescent pigments and transparent waterproof resin. Transparent waterproof resin completely covers low water resistance of phosphorescent pigments. This structure enables high waterproof property.(Japanese Patent Application No.2008-05527)
 
▲ Phosphorescent Glass Beads


▲ Phosphorescent Glass Beads

Evaluation data of water resistivity and chemical resistivity
Water resistivity Dipping test No change after 4 months
Chemical resistivity Dipping test 95% Ethyl alcohol No change for 2 days
2%NaOH No change for 2 days
0.4%HCl No change for 2 days

● Phosphorescence property
 
Excitation Wave Length 200 − 450 nm
Emission Wave Length 520 nm
Afterglow Extinction*1 >1,000 min.
Excitation Time*2 ~20min.
Light Fastness*3 >1,000 hours
from Luminova® Technical Data(NEMOTO & CO., LTD.)
*1: Time to decrease the afterglow to 0.32mcd/m2 when excited with D65 light at 200 lux.
*2: Time required for saturation with D65 light at 200 lux.
*3: Time to drop the initial afterglow brightness by 20% after irradiation with 300W high pressure mercury lamp. (Accelerated light fastness test)
Evaluation data of phosphorescence property
Measurement of Phosphorescent brightness(JIS Z9107)          
Brightness measurement after 200 lx light emission for 20minutes
Time 5 min. 10 min. 20 min. 30 min.
Phosphorescent Glass Beads + Epoxy paint 25.9 12.6 5.93 1.46
Phosphorescent Glass Beads + Emulsion paint 25.9 12.9 5.82 1.57
Brightness meter(Topcon Co. BM-5A) Angle 2 degrees, Distance 1.1m
Light source Color testing D65 Fluorescent lamp(Toshiba Lightec)


● Retro-reflectivity

Phosphorescent Glass Beads have retro-reflectivity that enables high visibility and ornamental effect.
Retroreflection Model of Glass Beads

  Retroreflection Model of Glass Beads
Using Laser Beam

Evaluation data of Retro-reflectivity
Measured by Mirolux7
Reflectivity unit mcd / (m2∙lx)
Phosphorescent Glass Beads + Epoxy paint 162
Phosphorescent Glass Beads + Emulsion paint 129


● Particle size

Appropriate size rage of Glass Beads Product can be selected for phosphorescent pigments and transparent resin coating.
Minimum particle size range 0.4-0.6mm

  • 路面表示塗料用
  • JIS Standard Beads
  • High-Index Retroreflective
    Glass Spheres
  • VISIBEAD®
  • Engineered Glass Materials
  • ブラスティング用
  • Glass Beads
  • PLASHOT®
  • Glass Powder
  • フィラー用
  • Solid Glass Spheres
  • Glass Microspheres
  • Hollow Glass Spheres
  • Q-CEL®
  • Sphericel®
  • Ceramic Multi Cellular
  • Extendospheres™
  • Conductive Additives
  • 粉砕・分散/ろ過用
  • Large Glass Beads
  • 塗料・装飾用
  • Phosphorescent Glass Beads