From a surface treatment standpoint the key variable to consider is the
surface energy. Any additive(s) which blooms to the surface affects the sur-
face energy of the binder. This change would impact the outcome of any sur-
face treatments. The most frequent effect is reduction of the effective of the
treatment process, resulting in a smaller increase of surface energy than
desired. The consequence could be poor wetting of the treated surface, which
can easily result in weak adhesive bonding. Some of the surface-modifying
additives are discussed here