Cenolite G     Glass Microsphere

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Cenolite G

Cenolite G are Glass Bubbles made from chemically stable soda-lime-borosilicate glass, size range from 8 microns to 8mm. Fine Grades have mean size mostly smaller than 100 um.




  • Improved flowability
  • Weight reduction
  • High Strength low density
  • Lower shrinkage/wrappage Reduce Resin or binder demand
  • Improve surface to smooth finish
  • Superior bonding with resins



Composite FRP

Floating material, polyurethane injection, bowling, golf, Synthetic foam, thermoplastic, artificial marble


Paint, Skim Coating

General industrial paints, heat insulation paint


Oil and Gas Drilling

Cementing and drilling fluid


Emulsion explosives

Explosive sensitization



Crack/joint filling, repair putties, automotive/marine body fillers


Package & Storage

Keep air tight if possible

20kg Carton Box

Physical Properties

Appearance free flowing powder
Shape nonporous Spherical
Colour white
Melting Point 700°C
Thermal Conductivity 0.50 w/mK
Chemical Resistance insolulable in water
Floating Ratio ≤90%


Fine Grades

  Density g/cc Density g/cc Strength Mpa /psi Typical Size um Distribution
D10 D50 D90
G25 0.25 0.15 5/750 10 65 90
G32 0.32 0.20 14/2000 10 56 85
G40 0.40 0.26 28/4000 8 45 85
G46 0.46 0.30 41/6000 8 45 65
G60 0.60 0.39 69/10000 8 40 65


Chemical Composition

Soda-lime-borosilicate glass