1.5 Refractive index and 2.4--2.6 glass beads
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.
Size:3-4mm
SiO2: 65%min
Na2:14%max
CaO: 8%max
Packing: 25kg pp bag, 40bags into 1 jumbo bag
