Glass type
Toughened laminated glass
Two or more toughened panes bonded with an interlayer. It is strong like toughened glass, and if a pane breaks the pieces stay stuck to the interlayer, so the glass stays in place.
In our catalogue today
- Toughened Laminated Glass13.5, 17.5, 21.5 mm Specification sheet (PDF)
Where it is used
- Frameless balustrades and Juliet balconies
- Canopies and overhead glass
- Walk-on glass
- Security glazing
Toughening and processing
- Toughening
- Each pane is toughened before the panes are laminated, so every size and hole is fixed first.
- Processing
- Edges polished after lamination.
- Note 1
- Thickness is the panes plus the interlayer: 17.5 mm is two 8 mm panes with a 1.5 mm interlayer.
Care
- Laminated glass edges are sealed with a neutral-cure silicone that is compatible with the interlayer. Acetic (vinegar-smelling) silicone and solvent sealants attack the interlayer and the edge clouds.
Standards
| Standard | What it covers |
|---|---|
| BS EN 12150-1Glass in building. Thermally toughened soda lime silicate safety glass. Definition and description | What toughened safety glass is, its fragmentation test, flatness and edge work, and the limits for holes and notches. Every toughened pane carries a mark naming the standard. |
| BS EN ISO 12543Glass in building. Laminated glass and laminated safety glass | Laminated glass: two or more panes bonded with an interlayer that holds the pieces together if the glass breaks. Part 2 covers laminated safety glass. |
| BS EN 14449Glass in building. Laminated glass and laminated safety glass. Evaluation of conformity / Product standard | The product standard under which laminated glass is declared and marked. |
| BS EN 12600Glass in building. Pendulum test. Impact test method and classification for flat glass | The impact test that classes safety glass. The class is written X(Y)Z: X and Z run from 3 (lowest drop height) to 1 (highest); Y is how it breaks: A like ordinary glass, B holding together like laminated glass, C in small pieces like toughened glass. |
