High Brightness White Silver Gray Reflective Glass Bead Powder Coating, Used for Reflective Thermal Printing Coatings, Road Making Signs

Pls input...Refractive Powder, Produced from a glass based powder material with SiO2 as its main component, CaO, Na2O, TiO2, BaO, etc. This product can be directly added to coatings or resins to give it a reflective effect, and can be used on various complex shaped surfaces. It is the core raw material for producing new optical functional composite materials such as reflective cloth, reflective film, reflective coating, reflective signs, advertising materials, clothing materials, standard race tracks, shoes and hats, backpacks, water, land, and air rescue supplies.
Reflective powder is produced from a type of glass microsphere powder material, which is divided into three refractive indices: ND ≥ 1.90, ND ≥ 1.93, and ND ≥ 2.2. The specifications can be graded from 100 mesh to 500 mesh, and the colors are available in silver gray and white.
Chemical composition of reflective powder: SiO2, CaO, Na2O, TiO2, BaO, etc
Specific gravity: 4.2 grams per cubic centimeter
Appearance: White: Smooth, round, transparent glass without impurities.
Gray: Silver gray, smooth and free of impurities.
Product characteristics
Reflective material products use high refractive index glass beads with aluminum plating on the back surface as a retroreflector, which has extremely strong retroreflection performance. It can directly reflect 85% of the light back to the light source. The brightness of the retroreflection caused by retroreflection can enable drivers and night workers with light sources to clearly see pedestrians and obstacle targets at night or in poor visibility, ensuring the safety of both parties.
Reflective principle
When light shines on the surface of microbeads, it is focused on a special reflective layer at the focal point of the microbeads due to their high refractive index. The reflective layer then reflects the light through the transparent microbeads back to the vicinity of the light source, resulting in a very bright reflection at the light source. According to complex optical formulas, it can be calculated that good retroreflection effect can only be formed when the refractive index of microbeads is greater than 1.9 or above. Reflective powder is the core component for producing new luminescent functional composite materials such as reflective cloth, reflective leather, reflective film, reflective coating, etc. It has the characteristic of returning to reflection and thus produces strong reflection effect.
Application scope
Reflective powder is the core raw material for the production of new optical functional composite materials such as reflective cloth, reflective film, reflective coating, reflective signs, advertising materials, clothing materials, standard race tracks, shoes and hats, backpacks, water, land, and air rescue supplies. It has the characteristic of retroreflection and generates strong retroreflection effect, without the need for external power supply. It can be widely used in fields such as roads, ports, mines, fire protection, etc. As a safety sign, it greatly improves. Reflective film can be produced through coating machines, and reflective clothing can be produced through screen printi