REFLECTIVE MATERIALS

Drop-on Glass Beads

During the process of road work, drop glass bead onto the road line painted with thermoplastic paint which is heated to certain temperature while the paint is still wet, thus to increase the reflectivity of road marking. According to the specification of Communication Industry Standard of the People’s Republic of China No. JT/T446-2001.There are two Grades: Grade A & Grade B and high refractive index Glass Beads available：

Grade A: used to be mixed with the paint prior to stripping the road. As the paint layers wear, the beads are exposed giving the enhanced visibility of road markings.

Grade B: used to be dropped on the freshly stripped paint surface on the road to give immediate enhanced visibility to night drivers.

Intermix

During the production of highway painting, put glass bead into paint based on the ratio of 18-25% (weight percentage), so that the highway paint can still keep reflectivity during wear and friction. The ratio is refer to the specification of Communication Industry Standard of the People’s Republic of China No. JT/T280-2004, the standards which is different in different countries and areas.

According to the specification of Communication Industry Standard of the People’s Republic of China No.GB/T24722-2009, the granulometry is shown in the table below.

Ratio：2.4-2.6g/cm3

Reflectivity：≥1.50

Roundness：≥80%

Contained ratio of magnetic particle：≤0.1%

The appearance of glass bead should be colorless, loosen and spherical particle, should be clean without impurity, and without agglomeration.

BS 6088 STANDARD

glass beads EN1424 & 1423

EN1423

EN1424