Reflective Glass Beads – Adding Reflectivity to your Lines. You have probably noticed that the painted stripes on the interstate or local roads light up when your headlights hit them.  The lines light up due to reflective beads embedded in the surface of the paint or thermoplastic used to stripe the road.  To make the … Continue reading Glass Beads to Make Parking Lot Stripes / Lines Reflective AASHTO