nd1.93 или nd2.2 стеклянные бусины для отражающих Она

Areas Of Application Because of the perfect characteristics of retro-reflection, the high refractive index glass beads of ND1.93 and 2.2 series can be used for reflective sheets, such as high-intensive grade, engineering grade, commercial (economic) grade, number plate grade, which used in the fields of billboards, traffic sign boards, vehicle number plates, reflective stick sheets or industrial safe sign boards and so on. Technical Details ITEM GY2-R SERIES GY3-R INDEX OF REFRACTION 1.90-1.93 2.1-2.3 SPECIFIC DENSITY 4.2±0.1 g/cm3 4.5±0.1 g/cm3 CHEMICAL COMPOSITION TiO2 BaO TiO2 BaOROUNDNESS ≥95% ≥95% DEVITRIFICATION COUNT ≤3% ≤5% BRIGHTNESS The brightness of glass beads used in the reflective sheets can meet with EN-12899 standard PARTICLE SIZE Customers can choose different sizes of glass beads from 10-106 microns depending on the application purpose PACKAGE 25 kgs paper drum