1. Product Description
Hollow glass microsphere is a kind of hollow sphere, a kind of
ultralight inorganic and nonmetallic powder materials. It’s
micron-size and looks like foam bubbles with the microscope, also
known as glass bubble and hollow glass microsphere.
It has the characteristics of light weight, large volume, low
thermal conductivity, high compressive strength, and good fluidity.
So it’s a good alternative filler instead of conventional fillers,
such as talc, calcium carbonate, silicas, etc.
Our products have H series, M series and S series.
2. Main Parameters of Hollow Glass Sphere
Appearance | White flowable powder |
Chemicals | Borosilicate glass |
True Density | 0.12-0.70g/cm3 |
Bulk Density | 0.10-0.40g/cm3 |
Crush Strength | 4-125Mpa/500-18000Psi |
Survival | Min 90% |
Flotation | Min 92% |
Moisture | Max 0.5% |
Particle Size | D50:20-70um |
Max. Particle Size: | 200um |
Melting Point | 1600°C |
3. Main Models and Specification of Hollow Glass Microsphere
| Types | True Density
(g/cm3) | Bulk Density
(g/cm3) | Compressive
Strength (Mpa/PSI) | Particle size |
| D50 (μm) | D90 (μm) |
| H20 | 0.20-0.22 | 0.10-0.12 | 4/500 | 65 | 110 |
| H22 | 0.21-0.24 | 0.11-0.13 | 5/750 | 65 | 100 |
| H25 | 0.24-0.27 | 0.13-0.15 | 5/750 | 65 | 100 |
| H28 | 0.27-0.30 | 0.14-0.17 | 10/1500 | 55 | 85 |
| H30 | 0.29-0.32 | 0.15-0.18 | 10/1500 | 55 | 85 |
| H32 | 0.31-0.33 | 0.17-0.19 | 14/2000 | 45 | 80 |
| H35 | 0.33-0.37 | 0.18-0.21 | 21/3000 | 40 | 70 |
| H38 | 0.37-0.39 | 0.19-0.22 | 38/5500 | 40 | 65 |
| H40 | 0.39-0.42 | 0.19-0.23 | 28/4000 | 40 | 70 |
| H42 | 0.41-0.44 | 0.21-0.24 | 55/8000 | 40 | 60 |
| H46 | 0.44-0.48 | 0.23-0.26 | 41/6000 | 40 | 70 |
| H50 | 0.48-0.52 | 0.25-0.27 | 55/8000 | 40 | 60 |
| H55 | 0.53-0.57 | 0.27-0.29 | 69/10000 | 40 | 60 |
| H60 | 0.58-0.62 | 0.29-0.34 | 83/12000 | 40 | 65 |
4. Advantages of Hollow Glass Bubbles
1)Light specific gravity and large volume
2)High disperion and good fluidity
3)Heat insulation, sound insulation
4)Low rate of absorbing oil
5. Application of HGS
1)Building materials in the field using its thermal insulation
effect, mainly for reflective insulation coating, putty,
adhesives,etc.;
2)Composite materials primarily low density and ease of use of its
processing characteristics, as to reduce the material, reducing its
weight components to improve component quality;
3)Aerospace navigation using its light weight, high compressive
strength characteristics of the production of lightweight
components;
4)Oil and gas exploration in the field of drilling fluid used as a
low-density and low-density cement slurry.
5)Emulsion Explosives
6)Marine Buoyancy
