2.4 Glass2019-05-03T12:07:16+01:00

2.4 Glass

Properties of glass:

  • High light transmission
  • Resistant to a wide range of chemicals
  • Very low thermal expansion
  • Maximum temperature of use: 400 – 750°C
  • Sensitive to mechanical loads/stresses

Special feature of glass:

  • On contact with aqueous liquids, commonly used window glass forms a gel layer which is no longer firmly attached to the underlying glass, although this is not perceptible to the human eye and touch.
  • For effective bonded joints, the gel layer must be either stabilised or removed by suitable surface treatment.

Special note for glass: The gel layer is not firmly attached to the base material, namely it must either be stabilised or removed by suitable surface treatment.

Surface treatment of glass:

  • Degreasing with solvents
  • Cleaning with aqueous cleaning agents or distilled water
  • Warm drying after cleaning or degreasing to prevent formation of a layer of condensation and hence new formation of a gel layer
  • Risk of microcrack formation on mechanical pretreatment
  • Stabilisation of the gel layer by using primers

Durch die Nutzung dieser Webseite erklären Sie sich mit der Verwendung von Cookies einverstanden. Detaillierte Informationen über den Einsatz von Cookies auf dieser Webseite erhalten Sie in unserer Datenschutzerklärung.