Adhesion on metallic and inorganic substrates is a significant problem for many coating systems. Especially after exposure to moisture and thermal shock delamination occurs on such substrates. Loss of adhesion results in deprotection of the surface resulting in corrosion and undue wear and tear to the now exposed surface.
Silanes are excellent primers to improve the adhesion and especially the corrosion properties of the surface. In particular Dynasylan® SIVO 160 can be used as a corrosion protection primer for aluminum and zinc surfaces. If improves adhesion through a real bond to the metal surface. Furthermore, it forms a real barrier that protects the surface from chloride as well as water.