The shelf life of glass beads
What is the reason of decreased retroreflectivity?
---The corrosion and wear of road marking glass beads
The road marking line is intact, and the glass beads are not offset, why the retro-relfectivity is decreased, come out today, let’s talk briefly -glass beads!
In the natural state, the glass has a self-corrosion phenomenon, and the transmittance of glass is in a straightforward decrease after stored for a long time.
Many studies have proven that the corrosion resistance and abrasion resistance of reflective glass beads on the road marking line have a great impact on the retro-reflectivity. In some countries’ standard, the glass beads with refractive index higher than 1.65 has been proposed to be applied for traffic road marking line because its high corrosion resistance, to ensure the retro-reflectivity of the road marking line.
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