In special cellular structure of numerous closed cells, foam glass is one of the best material to be used for low temperature heat insulation, with properties of light weight, low thermal conductivity, non-moisture absorbing, nonflammable, resistance to all chemical corrosive materials with exception of hydrogen fluoride, can be used in harsh conditions of extremely low temperature, underground, open-air, inflammatory, moist and corrosive.
Foam glass is mainly made from glass, mixed with foaming agent, in a process of heating and roasting in tunnel furnace, then annealed into bulk blocks, and cut into bricks or blocks in our sandard dimension.
Foam glass is also an excellent material for fire and vibration proof.
Typical application includes petrochemical industry, cold storage, underground engineering, ship-building and defence works as permanent heat insulation and cold preservation material.
We supply two types of blocks:
- High Density - 150 kg/m3
- Low Density - 120, 130 kg/m3
And we supply much more High Density blocks as building insulation material to the market in America and Europe.
Standard Dimension of foam glass blocks:
- High Density:
- 610mm (24 inch) x 470mm (18.5 inch)
- Thickness: Max 160 mm ( 6.3 inch)
- Low Density:
- 610mm (24 inch) x 460mm (18.1 inch)
- Thickness: Max 180 mm ( 7.1 inch)
Technical data for High Density Foam Glass Blocks:
(Test Report from THE PETROLEUM AND CHEMICAL INDUSTRY ENERGY-SAVING – PRODUCT QUALITY SUPERVISION TESTING CENTER)
| Items | Unit | Testing Method or Condition | Standard Requirement | Test Data | Conclusion |
| Density | Kg/m3 | JC/T647–2005 Appendix A |
<=160 | 153 | Certified |
| Thermal Conductivity | W/m.K | GB/T10297–1998 (25°C) |
<=0.062 | 0.0587 | Certified |
| Compressive Strength | Mpa | GB/T5486.2-2001 | >=0.4 | 0.84 | Certified |
| Bending Strength | Mpa | GB/T5486.2-2001 | >=0.4 | 0.90 | Certified |
| Bulk Water Absorption | % | JC/T647–2005 Appendix B |
<=0.5 | 0.20 | Certified |
Technical data for Low Density Foam Glass Blocks:
| Items | Test Method or Condition | Standard Value or Requirement | Test Value | |
| Density (kg/m3) | JC/T647-2005 Addenda A | ≤140 | 123 | |
| Thermal Conductivity (W/m.k) | GB/T10294-1988 (25oC) | ≤0.050 | 0.0455 | |
| GB/T10295-1988 (10oC) | / | 0.0436 | ||
| GB/T10295-1988 (-50oC) | / | 0.0437 | ||
| Compressive Strength (MPa) | GB/T5486.2- 2001 | Normal Temp | ≥0.4 | 0.82 |
| 300oC -48 hrs | / | 0.70 | ||
| -196oC-Steep 48 hrs | / | 0.65 | ||
| Temperature Resistance (oC) |
300oC -48 hrs, no rupture, no deformation | / | 300 | |
| -196oC - Steep 48 hrs, no rupture, no deformation | / | -196 | ||
| Cl-(%) | JC/T618-2005 GB/T17393-1998 Lg((Cl-+F-))x104) ≤ 0.188+0.655lg((SiO2-3+Na)x104) |
Be suitable for insulation cover on Austenitic stainless steel | 0.0055 | |
| F-(%) | Nothing separated | |||
| SiO2-3 (%) | 0.09 | |||
| Na(%) | 0.033 | |||