The adhesive gap is the joining gap in adhesive technology. It is a crucial factor in the production of adhesive bonds and refers to the distance between the surfaces to be joined. The adhesive gap must be taken into account when producing the parts to be joined. Example: Automotive industry: When producing bumper parts, the adhesive gap of the adhesive to be used must be taken into account from the outset so that a suitable, stable connection can be created.

The thickness of the adhesive gap has an impact on the strength and quality of the connection:

• If the bond gap is too large, too large an amount of adhesive will need to be applied to ensure a strong bond. If too little adhesive is applied and the adhesive layer is too thin, it can result in uneven contact between the materials, compromising the adhesion and strength of the bond.
• A bond gap that is too small can lead to problems if the adhesive does not have enough space to undergo the necessary chemical reactions and develop the required strength. In addition, a bonding gap that is too small can lead to high tensions that can damage the materials.

Overall, the adhesive gap is an important factor in the production of adhesive connections that requires careful planning and execution. By considering material thicknesses, preparing surfaces and controlling temperature, an optimal bonding gap can be achieved, ensuring a strong and lasting bond.