Heat Strengthened Glass

Heat-Strengthened Glass is produced in a way similar to that of tempered glass except for its lower surface compression. The heat-strengthened glass is intermediate in strength between annealed and tempered glass. Upon breakage, the glass breaks into pieces that are smaller than those from annealed glass but not to the extent of ‘dicing’ up into small fragments in tempered glass.

Key Features

• Enhanced Strength: Approximately 2 times stronger than annealed glass.
• Thermal Stability: Resists thermal stress breakage better than annealed glass.
• Flatness: Generally flatter than fully tempered glass, with less optical distortion.
• Breakage Pattern: Breaks into larger pieces that tend to stay in the opening (unlike tempered glass which crumbles).

Applications

• Spandrel glass
• Laminated glass components (for structural integrity)
• Windows in high-rise buildings (where thermal stress is a concern)
• Overhead glazing (when laminated)

Specifications