Glass Bead is colourless and transparent ball, no visible bubbles and impurity. And available for different uses, including surface treatment, road marking, reflective, decorative and etc. Product Introduction 1 Improve the road marking line contrary reflection function. When driving at night, the lamp shines on the marking line with glass bead in it, the ray of lamp is reflected back parallelly. So the driver can look at the road clearly and drive safely at night. 2 Reflective glass beads as the necessary material for the road marking line/ traffic paint, mainly used for road marking line,denoter, and identification for the guardrail out line. Technical references 1. Composition :Soda lime glass 2.appearance :colorless and transparent ,no obvious impurity 3.Content:SiO^2>62% 4.Density 2.4~2.6g/cm^3 5.Roundness >=80% 6.Refractive index ND>=1.50 7.PH:7-8 8.Microhardness:>=630.kg/mm^2 9.Hardness(Moh¡¯s):5-7 Advantages : The glass beads made of the soda-lime silica glass has the good chemical stability, certain mechanical intensity and hardness, so as polishing grind. Material compared to other grind materials has the very big superiority. Cannot pollute the processing metal. May accelerate the cleaning up, make the processing material to restore originally clean, smooth. Other Applications 1 Used for sandblasting. 2 Used for grinding. 3 Used for lapping and polishing. Product Specification: JT/ T446-2001 No. 1, 2, 3; KSL 2521 No. 1 and 2; BS6088 Class A and B; AASHTO M247 type 1 and type 2; EN1423 and EN1424; TS EN1423; AS/ NZS2009: 2002; CNS; JIS R3301; Australian Standard A, B, C, D. According to the client' request.