Glass beads perform an important function of traffic safety because of their retro-reflective properties. This property allows the motorist to clearly see the pavement line markings more clearly at night and in wet conditions. When a car's headlight beam shines on a pavement marking that is integrated-embedded-saturated with glass beads, the line stripes light up and become much easier to see at night. This effect is called retro-reflection. Paints that have glass beads in them have enhanced night-time reflectivity, higher visibility and safety for the driver.
Glass beads are sold by the 50 pound bags or pallet quantity. The average application will require 5-7 pounds glass beads per gallon of USSC traffic marking paint. Glass Beads can be dropped onto many different kinds of non-reflective paints to make them reflective.