Office Building
INTRODUCTION
DURAGLAS Tempered Glass uses the thermal process to enhance the basic strength of float glass. It is float glass (annealed glass) heated to near its softening point and then rapidly quenched by directing jets of cold air onto its surface. As the surfaces cool quicker than the core, the surfaces are placed in compression. This tempering process produces highly desirable conditions of induced stress, which results in additional strength, resistance to thermal stress and impact resistance. This process, however, does not alter the visible light and solar radiant heat properties of the glass. Wind pressure, foreign object impact and thermal stresses on other applied loads must first overcome this compression before there is a possibility of breakage.
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- Windows
- Glass facades
- Shop fronts
- Structural glass
- Shower screens
- Bathtub enclosures
- Escalator side panels
- Sliding or swing doors
- Furniture and interior decoration
- Showcases
- Partitions
- Squash court walls
- Balustrades
- Glass tables
- Floors
- Wall claddings
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CHARACTERISTICS
Strength
DURAGLAS is four to five times mechanically stronger than annealed glass of the same type and thickness. This is due to stresses in the surface layer. Compressive surface stresses close microscopic cracks and make the glass much stronger.
High Thermal - Shock Strength
DURAGLAS is approximately three times as resistant to rapid temperature changes (thermal shocks) as annealed glass. Annealed glass is a brittle material. It breaks under the lowest tensile stress. Tensile Stresses on the surface can be caused by bending the glass sheet or by changes in temperature. A sudden change in temperature of about 40ºC - 50ºC is enough to break annealed glass. Tempered glass can withstand temperature changes of 150ºC without breaking. This is extremely important for architectural glass used in facades, especially in the spandrel areas.
Safety
When ordinary annealed glass is broken, it forms sharp, knife-like fragments. DURAGLAS tempered glass however, breaks into small, comparatively harmless pieces, unlikely to cause serious injuries. Its break pattern enables tempered glass to be classified as safety glass.
Temperature Resistance
DURAGLAS can withstand temperatures of up to 295ºC.
33 Robinson Road, Singapore |
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Proton COE, Malaysia |
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Volvo Showroom, Sri Lanka |
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Break pattern of tempered glass |
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Break pattern of annealed glass |
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