Page 232 - Handbook of Adhesives and Sealants

Surfaces and Surface Preparation 201

Figure 6.2 Schematic representation of metal (a) and polymer (b) substrate surface
regions.

water layer. In addition, there will be contaminants absorbed from the
atmosphere that might include sulfur, nitrogen, halogen, or other com-
pounds depending on the reactivity of the metal and the pollutants in
the substrate’s manufacturing environment. The contamination layer
will also depend on how the metal had been stored and handled. There