Reflective Glass Bead for Marking & Traffic Paint
Glass beads are made of broken glass, flat glass and other raw materials by high temperature melting bead processing. Low thermal conductivity, high strength, good chemical stability, and the texture of glass beads themselves, glass beads instead of plastic raw materials are widely used in filling, such as gravity blanket filling, compression filling, medical filling, weighted blanket filling, toy filling and so on.
ND1.93 glass bead
Composition BaO-SiO2-TiO2 GLASS
Refractive Index 1.93±0.01
Specific Gravity 4.1±0.2 g/cm3
Color White
Form: Fine spheres powder
Size 75-90um;60-80um;50-70um
40-60um;25-40um;10-25um
(can be provided by specific request)
Roundness 95%
Opacity 1%
Brightness
(Retro-Reflective Coefficient) 400-600 CPL for different type;
The brightness of glass beads used in the reflective fabric meet the EN-471 standard.
Reflective glass beads 2-3MM used for grinding
The glass beads,composed of Si,Na and Ca,are broken and calcined by high temperature after which the said microspheres are obtained.With properties of the high roundness rate,better hardness,excellent anti-friction and direct reflect light .They are widely applied in the fields of plastic rubber,abrasion ground,blast derusting,road-reflect dope and handicraft lamp,etc.
The glass bead is transparant/clean/colorless/smooth , spherically shaped, free from milkiness, pits, or excessive air bubbles and conform to the following specific requirements.
Material of bead is clear and colorless, commercial grade soda lime glass cullet that has been cleaned to remove any opaque particulate and other matter that may interfere with the reflective properties of the bead.
We can produce all standard road marking glass beads.
