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Preparation for Bonding

Abstract

Adhesives are used today with increasing volumes in many applications in different industries and are supplied to the end customers in various forms. Very common ones are liquid adhesives, pastes, mastics, as well as adhesive films or tapes. Less common ones are powder systems for coating purposes.

Bonding with adhesives is not a simple operation and a lot of preparation work is necessary before the adhesive can be applied to the designated bonding area (Shields, Adhesives Handbook 1985). A chain of preparation processes is required. It starts with the mixing of the adhesive and its storage before the transfer to the customer. At the customer, the adhesives need to be transferred to the operation area. The substrates to which the adhesive will be applied have to be well prepared. The final process step includes the dispensing of the adhesive to the substrate and the joining of the parts which are intended to be bonded. Some adhesive formulations require