Application of bonding agent

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The bonding agent is used for adhesion between glass or ceramic glass and the adhesive. Therefore, a thin, homogeneous and continuous line of bonding agent must be applied.

After compressing the adhesive bead, make sure that there is 1 to 2 mm wide bonding agent trace is on the ceramic glass next to the adhesive bead (serves visual inspection).

The adhesive bead may become up to 15 mm wide in compressed condition. The width of the adhesion agent is therefore at least 17mm with windscreens and rear windows and at least 9 mm with door window glass.

The bonding agent may not be applied in the visible area or the point grid. Fresh bonding agent in the visible area must immediately be wiped off with solvent because hardened bonding agent will leave a haze behind.

Fig 1: Identifying Adhesive Beads And Bonding Agent

Courtesy of BMW OF NORTH AMERICA, INC.

BONDING AGENT APPLICATIONS

Graphic A	Graphic B
Window glass with cover	Window glass without cover.
If the adhesive bead (1) cannot expand further (a = 0 mm) into one direction when pressing down, the outer edge of the bonding agent bead (3) will run through Point a.	If the adhesive bead (1) can expand into both directions while pressing down, the bonding agent (3) and adhesive bead (2) will run toward each other in the center (m).