Effective explosion protection in steel frames

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Protects against explosions

With the growing threat and risk of attacks and explosions in densely populated urban environments, the need for advanced security glass in windows, doors and glass partitions is also increasing. In a powerful explosion, conventional glass panes will splinter even at a great distance from the explosion, often with serious splinter injuries as a consequence. In properties located in the immediate vicinity of the explosion even splinter-free panes will be forced in, despite being made from toughened or laminated glass. Hammerglass explosion resistant solutions will hold the panes firmly in position even in a powerful explosion.

Unique splinter-free lightweight solution

Hammerglass anti-explosion solution, comprising a 12 mm Hammerglass glazing pane mounted in a sturdy steel frame, is compatible with the building façade. The steel frame holds the whole package in place. This splinter-free solution is thinner, and weighs substantially less, than comparable solutions based on normal glass. In sensitive urban locations, in government buildings, embassies, banks and the like, Hammerglass offers highly effective protection which will not fragment or splinter in a blast. In addition to explosion protection, the system provides effective barrier protection against break-ins.

Explosion tested safety glass

A series of tests in accordance with EN 13124-2 has been conducted on Hammerglass screens. A number of explosions were carried out, at varying distances from the Hammerglass screen. As a result it was demonstrated that 12 mm Hammerglass screens withstand the pressure wave generated by 3 kg TNT being exploded at a distance of 3 metres.

hammerglass anti explosion

Protects both man and property

More and more shops in sensitive urban locations are now opting for Hammerglass in steel profile for their display windows. Our system provides effective barrier protection against break-ins. At the same time it offers explosion protection without the risk of fragmentation and splintering, and considerably higher security for personnel working in the shop. Installation does not cause any visible damage to existing display windows.


  • Hammerglass glazing pane mounted in a sturdy steel frame
  • Explosion tested safety glass
  • Unique splinter-free lightweight solutions
  • Protects against explosions, burglary and vandalism
  • Installation does not cause any visible damage to existing windows
  • Confidential risk analysis and security needs assessment


How to choose the correct security level

EXR1 3 kg 5 m 0,75 bar 1,05 bar/ms HmG 12 mm
EXR2 3 kg 3 m 2,3 bar 1,65 bar/ms HmG 12 mm
EXR3 12 kg 5,5 m 1,7 bar 2,25 bar/ms -
EXR4 12 kg 4 m 3,6 bar 3,00 bar/ms -
EXR5 20 kg 4 m 6,3 bar 4,20 bar/ms -

Evaluation based on the threat level

We assist with the evaluation of façade requirements based on the threat level. From the basic data relating to existing windows and doors we produce a proposal for an appropriate level of protection. We can provide you complete solutions with customized steel systems for window and door applications - a comprehensive turnkey solution including confidential risk analysis and security needs assessment. All Hammerglass glazing panes are laser marked with our logotype and production number, thus ensuring traceability for internal quality assurance and safety in the event of any warranty issues.