Glass Bead with Refractive Index 1.93Nd

1.93nd glass bead is used for Exposed-Lens type retro-reflective articles, such as open-type reflective sheets, reflective fabric. reflective tape, reflective yarn and Encapsulated-Lens type retro-reflective articles, such as high intensity grade reflective sheet.
I. Technical Data
Composition TiO2-BaO-SiO2 GLASS
Refractive Index 1.93±0.01Nd
Specific Gravity 4.1±0.2 g/cm3
Color White
Form Fine spheres powder
Size 10-100um(can be provided by specific request)
Roundness 95%
Opacity 1%
Aluminum Coated Glass Bead with Refractive Index 1.93ND

Aluminum coated glass bead is used for road signs , traffic safety goods and reflective printing ink, screen printing etc.
I. Technical Data
Composition TiO2-BaO-SiO2  GLASS
Refractive Index 1.93±0.01Nd
Specific Gravity 4.1±0.2 g/cm3
Color Silver grey
Form Fine spheres Semi-coated with aluminum
Size 25-38um;30-45um; 40-55um; 50-75um