5x Impact Strength
Toughened & Tempered Glass
Heat-treated safety glass with 4-5 times the strength of annealed glass. When broken, it fragments into small, relatively harmless pieces instead of dangerous shards. Essential for safety-critical applications in modern construction.
Architectural Glass Catalogue—Full specifications, configurations, and technical data
The Challenge
Why This Product Exists
Annealed glass breaks into large, razor-sharp shards that cause severe injuries — it's the leading cause of glass-related accidents in buildings. Every year, thousands of injuries occur from standard glass failures in doors, facades, and overhead applications where safety glass should have been specified.
Technical Data
Specifications
Strength
4-5x annealed glass
Surface Compression
≥ 69 MPa (10,000 psi)
Break Pattern
Small granular fragments
Thermal Shock Resistance
Up to 250°C differential
Thickness Range
4mm – 19mm
Max Size
3,300 × 6,000 mm
Where It's Used
Applications
Glass Doors & Entrances
High-traffic areas requiring impact resistance
Shower Enclosures
Safety-critical wet area applications
Glass Railings & Balustrades
Structural glass barriers and guards
Overhead Glazing
Skylights and canopies where falling glass is a risk
Differentiators
Key Features
Global Compliance
Certifications by Region
North America
- ASTM C1048
- ASTM E2190
- ANSI Z97.1
- CPSC 16 CFR 1201
- IGCC/IGMA
Europe
- EN 12150
- EN 14449
- EN 1279
- CE Marking
- EN 572
Middle East
- GSO Standards
- Dubai Municipality Code
- Estidama
- SASO
Asia-Pacific
- AS/NZS 2208
- AS 1288
- JIS R3206
- GB 15763 (China)
Latin America
- NTC (Colombia)
- IRAM (Argentina)
- NOM (Mexico)
- ABNT NBR (Brazil)
Common Questions
Frequently Asked Questions
No. Tempered glass cannot be cut, drilled, or modified after the tempering process. All cutting, drilling, edge work, and notching must be completed before heat treatment. This is why precise engineering specifications are critical before manufacturing.
HST is an additional quality process where tempered glass is held at 290°C for several hours to detect nickel sulfide inclusions that could cause spontaneous breakage. We recommend HST for all safety-critical applications such as facades, overhead glazing, and balustrades.
Tempered glass has surface compression ≥69 MPa and breaks into small fragments. Heat-strengthened glass has surface compression of 24-69 MPa and breaks into larger pieces similar to annealed glass. Heat-strengthened is used where extra strength is needed but full temper break pattern is not required.
Yes. Tempered laminated glass combines the strength of tempering with the post-breakage retention of lamination. This is the preferred solution for overhead glazing, glass floors, and high-security applications.
Explore Our Full Product Range
Will Enterprise manufactures across 4 integrated product verticals — all from our facilities in Shandong, China.
Need Technical Support?
Our engineering team can help you specify the right product for your project requirements, local building codes, and performance targets.