Glass microspheres Reflective glass microspheres / beads, as a necessary material for road marking, are mainly used for road mark lines and traffic signs. It is usually classified as bellows according to its usages. I. Premixed microspheres; mixed in paint before working Ii. Dropping microspheres. Special coated glass microspheres / beads, brighter and better in moisture proof. It is used by dropping / spraying after mark painting. The coating will increase durableness for glass microspheres / beads and better function in rainy days and moist regions. We supply reflective glass microspheres standards in gb/t24722-2009, bs6088a/b, aasho i/ii, en 1423/1424, as2009-b/c, ksl2521, and also in different single sizes or mixed according to customers demands. -