K&Kglass core products toughened glass angle pic of toughend glass pool fence
K&Kglass core products toughened glass spider facade 0
K&Kglass core products toughened glass stacking doors on rail

Toughened Glass – a grade a safety glass up to 5 times stronger than standard annealed glass.

The toughened glass process heats glass to temperatures typically around 600°C then rapidly cools the glass by blasting cold air for set time period depending on the glass thickness and type.

Ideally suited for applications where additional strength, thermal resistance or safety is required to meet stringent Building Code requirements for  use of a Grade A safety glass.

Features & Benefits
  • Resists penetration from accidental or deliberate impact
  • Safety – when damaged it forms harmless fragments instead of large dangerous shards
  • Provides greater resistance to thermal stress
  • It can be subjected to temperatures ranging from 70°C to 290°C
  • Can be used in monolithic form or combined with a K&K IGU to increase energy efficiency added safety and noise reduction 
  • Four to five times stronger than normal annealed glass
  • Extremely versatile, suitable all residential, commercial and industrial applications

Product Specification


  • Residential and commercial buildings where Grade A safety glass is a requirement
  • Shower enclosures
  • Spandrel applications and thermal safety
  • Furniture
  • Balustrades
  • Shopfronts and entrances
  • Custom Colour and digital ceramic glass

Glass options

Thickness: 4mm to 19mm glass

Min size: 300mm x 100mm

Max size: 6000mm x 2800mm
* Max size for 4mm = 2800mm x 2500mm

Heat Strengthened

Heat strengthened glass offers twice the strength of standard annealed glass of equal thickness, typically used for applications where additional resistance to wind loads and thermal stresses are required without the need for a Grade A safety glass.   

Heat Soaked

Heat soaked toughened glass is designed to minimize the potential spontaneous breakage due to nickel sulphide (NiS) inclusions in the glass. Heat soaked glass is recommended in structural applications, fencing and balustrades or any application where safety is paramount and in certain applications a compulsory requirement of the BCA.


Virtually all glass types can be supplied in toughened form, the exceptions being some deeply patterned glass, wired and glass for lead lighting.