Laminated safety glass - which thickness?

Laminated safety glass (VSG glass) can be designed in different thicknesses. The strength of the glass also influences its properties. Which thicknesses are possible, and which special properties arise as a result, you can read here.

Basic structure

Laminated glass basically consists of two glass panes which are firmly connected to each other. The connection of the two glass panes is effected by an intervening plastic film. The two discs are firmly laminated together with the film, so that the compound of glass and film is no longer separable.

Thickness differences

Accordingly, the following criteria are decisive for the thickness of laminated safety glass overall:

  • the number of glass panes used (usually two)
  • the thickness of the glass panes used
  • the strength of the film

All these factors can change. This results in variable thicknesses of about 6 mm to 65 mm. Depending on the thickness, the price is different.

Properties and thickness

The glass thickness has a significant effect on the properties. The thicker the glass, the more break-resistant it usually is. For the actual breaking strength, however, the quality of the film used is generally at least as crucial.

The tougher the film, the less the glass can be penetrated, and the more stable it is. For larger glass thicknesses thicker and tougher films are usually used. Large glass thicknesses in connection with very strong foils are also known as bulletproof glass.

Typical film thicknesses

The thickness of the film is comparatively low - it is usually below one millimeter. Very common film thicknesses are the dimensions of 0.38 mm and 0.76 mm.

Due to the very different properties of the individual film types, the film thickness can vary greatly in individual cases. For example, particularly sound-insulating films are often a little softer and stronger in order to better absorb the sound, and to avoid vibrations from the glass panes.

Thickness information in practice

The thickness of laminated safety glass can be recognized by a standardized description: It consists of three numbers, after the first two digits is a dot. The first two digits indicate the thickness of the discs in mm, the digit behind the dot encodes the thickness of the foil.

Thus VSG 86.2 means: first disc 8 mm, second disc 6 mm, foil thickness 2 (0.76 mm).

Tips & Tricks

Even with laminated safety glass, there are numerous special shapes and designs, such as opaque, sound-absorbing or with a special structure. Therefore, always get extensive advice from specialist retailers.

Video Board: Easiest Way To Cut Laminated Glass