What is adhesive strength?
We distinguish two components of strength:
- Adhesion: the bond between the adhesive and surface after the adhesive has cured.
- Cohesion: the internal strength of an adhesive. It’s the ability to hold itself together and resist failure from external forces.
Maximum bond strength is usually not achieved instantly, as strength develops over time. Strength development is the increase of the cohesive strength. Some adhesives reach full bond strength very quickly, whereas others need more time to develop cohesion strength.