Introduction
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Adhesives nowadays have a multitude of uses, from sticking plasters used in the home to bonded joints in cars and rail vehicles that must meet the highest safety requirements. For this reason, it is not possible for adhesive manufacturers to take account of all and in particular very special uses of their products in their product data sheets.
Adhesive bonding is one of the "special processes" defined in DIN ISO 9000 ff., meaning that non-destructive tests do not allow quality statements of 100% certainty to be made. This is why users of adhesives must have a fundamental knowledge of bonding so that they are aware of the special requirements for making bonded joints.
Making an effective bonded joint involves much more than merely selecting the right adhesive. Indeed, the whole adhesive system must be considered and quality assurance is vital during all phases of the product life-cycle.
The carrying out of all necessary process steps in the correct sequence involves a not inconsiderable amount of quality assurance work. At the outset it is important to create awareness of all the steps in the planning and production phases.

These guidelines therefore describe the development and manufacture of a fictitious product in various steps. The guidelines are directed at small and medium-sized companies, including those in the handicrafts sector, that already use adhesives and perhaps require additional specific information and also at companies that wish to start using adhesives and so require more fundamental background information.

These guidelines have been prepared for both these situations and so present a variety of topics which can either be referred to individually or which can be studied in sequence. A full picture of adhesive bonding technology is presented here, covering all key practical aspects. Unfortunately, specific adhesives and specific bonded joints cannot be discussed. Specific questions should be directed at the adhesive manufacturers and external experts.

The starting point is the product idea. The planning and production phases for the product are considered in the following sections.

0) Fundamental principles of adhesive bonding
1) Planning to manufacture bonded joints
2) Substrate selection and properties
3) Bonded joint design
4) Adhesive selection
5) Surface treatment
6) Demonstration of usage safety
7) Preparations for production
8) Production of bonded joints