Koru patterned glass canopy
SafeLite™ STF (Sentry) Toughened Laminated

SafeLite™ STF (Sentry) Toughened Laminated

SafeLite™ STF (Sentry) - toughened laminated glass

SafeLite™ STF Sentry is a toughened laminated safety glass where the glass layers (typically two or three) are held in place by a special high strength interlayer called SentryGlas™ which is five times stronger and up to 100 times stiffer than conventional laminating materials.

This makes SafeLite™ STF Sentry ideal for special applications such as balustrades, structural glass walls, fins, canopies, glass floors, any fixed point glazing application, and some security applications.

These structural laminates are so strong and stiff they can hold a toughened laminated panel together even if both panes are fractured, reducing the likelihood of injury to nearby persons from broken glass fragments. In some cases they can be bonded to metal so special stainless steel fittings can be bonded into the glass, via holes and notches.

In addition to its strength, SafeLite™ STF Sentry retains its clarity – even after years of service and is much less vulnerable to moisture exposure or yellowing over time. 

Safelite™ STF Sentry is manufactured to order by Metro Performance Glass and can be customised to suit specific project requirements.

SafeLite™ STF Sentry benefits

  • SafeLite™ STF Sentry is a Grade A safety glass.

  • Can be manufactured with annealed, heat-strengthened or toughened glass plies, to suit the specific needs of the installation.

  • Retains some load bearing capacity even when both panes of glass are broken:

    • Allows for a fully frameless glass balustrade, without the need for an interlinking rail or stiffener brackets (subject to minimum panel width requirements).

    • Offers increased intruder resistance (compared to annealed PVB laminate).

    • Less likely to fall out of overhead point fixed applications (canopies).

  • SafeLite™ STF Sentry offers improved sound reduction (compared to single/monolithic glass).

  • Reduces UV transmission by approximately 99%.

  • As SafeLite™ STF Sentry is manufactured to the project specific specification, a wide range of finishes can be incorporated, including tints, translucent or coloured interlayers, and digitally printed images.

Available sizes

For the available sizes and thicknesses of Metro's toughened, laminated or toughend laminated safety glass click below. Metro Glass have furnaces across their manufacturing sites in Auckland and Christchurch, with the Auckland Furnace capable of toughening panel’s up to 5.1m x 2.4m

Metro Processing Capability

Stocked Sheet Sizes
Glass safety railing for commercial spaces, providing both style and security.

Need more options?

Metro safety glass is available in many different options. Whatever your performance requirements, we can customise a solution for you.

0800 545 800 Find a Branch

Explore Metro's advanced Low E double or triple glazing range for superior performance. Contact us today to discuss the ideal glass solution for your project on 0800 545 800