Our vacuum glass is based on the proven vacuum thermos bottle. By separating two panes of glass with small pillars and sealing the edges, a micro-void space is created between the two panes. All of the air is removed. The height of the void space between the panes is kept 0.2 mm by the tiny pillars, and the vacuum is pulled down to 10-4 Pa.

Due to the inside vacuum, the conduction and convection of heat between the panes is almost nil. In addition, the LOW-E coating reflects more than 85% of the infrared back into the room. For these reasons, our vacuum glass windows prevent nearly all heat loss from conduction, convection and radiation. ICESUN glass provides a beautiful window and a superb thermal barrier.

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Size of vacuum glass: max. 3000×2000(mm); min. 200×200(mm); Thickness 6~20 (mm)


  1. Vacuum glass not only can be used independently, but also be used with insulating glass, laminated glass and solar glass.
  2. If vacuum glass is used for windows, used in casement window is better rather than in sliding window because the latter’s seal is lax which would reduce vacuum glass performance.
  3. Different type and specification of glass is used in vacuum glass depending on weather conditions, purposes and functions.
  4. Vacuum glass cannot be cut. The size (Length and width) of vacuum glass is the same as insulating glass for same window profiles.
  5. Annealed vacuum glass should be installed vertically. Tempered vacuum glass can be installed obliquely or horizontally.
  6. Don’t use the vacuum glass if it appearance shows cracks, scratches or rainbow patterns. Don’t scratch on vacuum glass with hard object. Deep scratches would reduce the service life significantly.
  7. Vacuum glass is provided with a cap to protect the evacuation glass tube. Don’t remove, extrude or crush the cap.
  8. The sealing edge of vacuum glass must be installed inside the window frame and cannot be exposed.
  9. The location which vacuum glass is installed should be far away from heating and cooling equipment. Avoid cold or hot air blowing directly only on a partial area of the glass. Don’t paste the film and paper on vacuum glass. It may cause glass breakage.
  10. Vacuum-mirror (vacuum-indicator) should be placed at the upper-right corner of window.
  11. Please use tempered glass if the temperature differences of vacuum glass between exterior and inner is over 50°C (122°F).
  12. Avoid shaking and hitting during handing, installing and using vacuum glass. Vertical transport is permissible only. Don’t use glass sucker on vacuum glass. It would cause vacuum glass breakage. Soft pads must be placed beneath the vacuum glass. Don’t put the vacuum glass on the cement floor directly, so as to avoid hitting and scratching the vacuum glass.



VIG is warrantied for quality for 10 years after manufacturing, in the condition of being treated under guidelines. Longer warranty is required extra pay.

When the vacuum is lost in its service time, the vacuum-mirror would disappear, new VIG will be provided for replacement at free.


Vacuum Glass