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D-HR干濕態雨夜反光用高亮玻璃珠(三、四級反光專用)D-HR large wet-weather beads ,Wet Road Rainy Reflective Glass Beads
日期:2019年6月23日 瀏覽[55]

D-HR干濕態雨夜反光用高亮玻璃珠

D-HR玻璃珠


Drop-on | Premix | Reflective Glass Beads

 large wet-weather beads

Wet Road Rainy Reflective Glass Beads

tailor made for every kind of performance requirement


    Our highly reflective TORY® make marking systems more visible at night, in particularunder wet conditions. This effect is achieved, firstly, by their crystal clear surfaces and, secondly, by thelarge diameter: Consequently, the bead protrudes out through the film of rain and is able to reflect thebeam from the headlight. Suitable for thin-layered marking systems with increased requirements forvisibility in the wet.


    D-HR glass beads are applied under gravity or pressure as a surface application to a wet film of pavement-marking material to provide retroreflectivity. When these beads are applied on a smooth substrate, a nominal rate of 500 g/m2 may be appropriate. A coarse surface substrate usually requires a higher rate of application of beads to achieve a similar level of retroreflectivity. 


     These beads have no moisture-proof coating and are, therefore, also suitable for intermixing into thermoplastic pavement-marking material to provide retroreflectivity in both dry and wet conditions throughout the life of the marking. These beads should be intermixed at a rate of not less than 20% by mass. 


 AS/NZS 2009:2006 

APPENDIX   M 

RETROREFLECTIVITY VERIFICATION OF TYPE D-HR BEADS 

(Informative) 

D-HR玻璃珠

    The minimum level of retroreflectivity for Type D-HR glass beads is 600 mcd/㎡/lux。


    High Performance beads are made from 100% virgin glass. Due to their size, their high roundness (options up to 90%), and superior glass composition, expect the highest level of retroreflection, especially on wet-night conditions. TORY D-HR glass beads are one of the most cost-effective and sustainable ways to increase road safety.


Recommended applications: 

• High-quality drop-on, especially with high requirements for wet-night reflection 

• Can be applied with standard road  marking equipment






注:玻璃珠的粒徑,級配一樣,不代表其逆反射性能一樣。


怎樣判定玻璃珠逆反射性能的好壞,請參考澳大利亞標準對D-HR玻璃珠性能的測試方法


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