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Cohesion
The internal strength of an adhesive film: the state in which the particles of a material are held together by primary or secondary valence forces. Cohesion failure of the adhesive leaves adhesive on the substrate; cohesion failure of the substrate means the bond was stronger than the material joined.
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Sources cited on this page
- Adhesive Compendium for Conservation (Jane L. Down, Canadian Conservation Institute, 2015), Canadian Conservation Institute (CCI), Government of Canada (2015, catalogue number CH57-4/4-2015E-PDF (x, 256 pages)). Where: pp. 2–3, Introduction – Adhesion and cohesion, Types of bond failure.