Screen Materials Glass Microspheres for Pavement Markings
How Glass Beads are Applied to Pavement Marking Materials
The glass beads are applied to pavement marking materials in one of three ways. They can be premixed in marking materials before application, or they can be dropped or sprayed into the wet paint directly behind the paint sprayer, or a portion can be dropped onto premixed two-part epoxy or thermoplastic materials.
Glass Microspheres for Pavement Markings Paints
The top surface of beads is enveloped by the paint, with the wicking action of the paint rising up to above the midpoint of the bead. This provides two actions. It locks the glass beads into the paint and allows the paint to act as a diffuse reflecting surface for retroreflection, with the paint color affecting the color of the retroreflected light. The light entering the glass bead is bent and focused towards the back of the bead and reflected back out towards the headlights and driver.
A good application of beads results in the top layer of glass beads being embedded to about 60% of the diameter of the bead. There should be consistent quality of both glass beads and paint so that the paint thickness and bead coverage promotes even retroreflectivity across both directions of road travel. Too little paint results in under-embedded beads. This will result in improperly anchored beads that will fall out prematurely, and thus will not be effective retroreflectors. Under-embedded beads cause a large percentage of the light that enters them to exit out the back. Too much paint results in over-embedded beads. While over-embedded beads may remain in the binder, light cannot enter them and thus no retroreflection can occur.
This kind of glass beads are processed from special glass raw-materials. The refractive index is between 1.57 and 1.60. Its` reflective performance is superior to those glass beads adopted from architectural glass with same roundness and particle size. And the roundness and particle size can be customized according to requirements.
The glass bead can be produced based on the standard of countries or areas, such as EN1423/1424, AASHTO M247, BS6088, JIS R3301 and KS L2521 etc.
Chiye Glass Bead (Hebei) Co., Ltd, which was set up in 1998, is the biggest and specialized supplier of glass bead for road reflectivity in China now. It locates in Langfang city that is 50 kilometers far from southeast of Beijing, and around 100 kilometers far from Xingang port of China.
The company owns 28 glass bead production lines for producing various glass beads with annual output of 100.000MT. ISO9001 Quality management system and IS014001 Environment management system certified.
Our company mainly manufactures Drop-on Glass Beads, prermix Glass Beads ,Blasting Glass Beads, Grinding Glass Beads and other Reflective Glass Beads.
Moreover, We can produce micro Glass Beads for Road Marking based on the standard of EN1423/1424, AASHTO M247, BS6088, JIS R3301,KS L2521 etc.
The Brand of our glass bead "Chiye" has been recognized as "Famous Brand" through continuate technological innovation & accumulation of productbn experience of years. Our glass beads have been certified as qualified product by National Center for Quality Supervision & Inspection of Traffic Safety Facilities, and recognized as "Well-known Famous Product of China". "Chiye" Brand is the "Famous Brand of Hebei Province.
We obtained CE certificate in September of 2005 and KS certificate in December of 2006. Our products have been exporting to more than fifty countries and areas including US, Canada, UK, France, Spain, Denmark, Korea, India etc.
We keep our tenet of sincere communication and priority quality, and we focus on providing excellent service and product to customers. We genuinely hope we can start cooperation with your esteemed company under the basis of mutual-benefit and promote mutual-development.
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Product Categories : S-Brilliance Glass Beads