Chemical curing

Through the process of chemical curing, the glasses become more resistant in their impact, bending and scratch resistance. The material strength is strongly dependent on the duration of the tempering process and the base material.


Printing, coating, grinding, bending, matting or etching must be done before chemical curing.


In chemical tempering, the glass is immersed in a molten salt bath at high temperatures. During the process, ion exchange occurs at the surface (sodium / aluminium ions are exchanged by the larger potassium ions, this creates a compressive stress at the surface which gives the glass a higher strength.


Chemical curing glasses offer the following properties:

  • scratch resistance
  • impact resistance
  • bending strength
  • higher temperature resistance