Aluminum Coated Glass Bead
Aluminum Coated Glass Bead
Aluminum Coated Glass Bead
Aluminum Coated Glass Bead

Aluminum Coated Glass Bead

  • Brand 3G
  • Origin china
  • Delivery time 7 days
  • Supply capacity 5000 kg

Aluminum coated glass bead is grey color reflective glass bead, there is a a layer of aluminum coating on half sphere. It can highly enhance the reflective effect . As one kind of reflective pigment, be widely used for road signs, traffic safety goods, and reflective printing ink, or screen printing, etc.

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Technical Data



Refractive Index


Specific Gravity

4.1±0.2 g/cm3


Silver grey


Fine spheres Semi-coated with aluminum


75-90um; 65-75um;




(Retro-Reflective Coefficient)

Grade 1 : 50-100

Grade H:    65-130        

reflective pigment grey color reflective glass bead

Reflective Ink Instructions

Mixing Instructions:

a. Choose neutral transparent printing inks

b. Choose glass bead with small particle size like 20~40um, 40-60um , 50-75um, 60-90um

c. Add about 50-100% of glass bead, by weight, into the clear printing ink.

d. You could add more if brighter ink is required. Adding more powder thickens the solution.

e. Do not grind the glass bead 

f. Use any containers and stir the mixture at high speed.

g. To avoid deposits, you should use high viscosity resins or anti-settling agents.

h. Select a printing ink that is suitable for the surface it is to be printed on. For example, use metal abrasive oil if the surface to be printed on is metal

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