Refractive Powder

Our offered Refractive Powder is made of glass beads powder material, can be divided into three types of refractive index, NDa Y1.90a NDa Y1.93a NDa Y2.2.Can provide from 100M to 500M as you prefer. And there are silver gray and white tow color.
The chemical composition of reflective powder: SiO2 ,CaOi Na2O, Tio2, Bao etc.
Proportion: 4.2g/cmA
Appearance: White: Smooth, rounded, glass transparent without impurities
Silver gray: Smooth without impurities
Reflective principlei When light over the surface of the beads, due to the high refraction effect of microsphere, focusing on the special beads reflector, reflector will reflect light to the light source nearby again through a transparent beads, so in the light source can see very bright light. According to the complex optical formula calculation, only when the refraction of a microsphere is over 1.9 can make a good regression reflective effect. Reflective powder is a core component of new light-emitting functions composite materials such as the production of reflective fabric, reflective leather, reflective film, reflective coatings etc. It has characteristic of regression reflection and have a strong reflection effect.