7.2.3 ‘No adhesion’

7.2.3 ‘No adhesion’

The third (and probably the most common) failure mode is when the adhesive does not adhere properly. This may be due to several factors, including surface contamination, oxide layers, incompatible substrates, low surface energy substrates and/or excess moisture. The general cause of this failure is a mismatch of adhesive and substrate or lack of proper surface preparation (see Section 2 for further discussion of the basics of bonding and adhesion and Section 4 for surface preparation).

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