1. coated glass bead 2. high reflective effect 3. good fluidity 4. half sphere coated with aluminum Aluminum coated glass bead is coated with a layer of aluminum on half sphere. It can highly enhance the reflective effect and be widely used for road signs, traffic safety goods, and reflective printing ink, or screen printing, etc.I. Technical Data CompositionTiO2-BaO-SiO2 GLASSRefractive Index1. ...