The phosphate coating treatments represent a stable base for plastic materials gluing (such as, for example, epoxy powders or other polymers), since they
increase the “anchorage” properties of metals.

To guarantee maximum surface adhesion and the stable base predisposition, it is imperative to call upon expert technicians, since eventual defects encountered during the phosphate coating process may lead to total and fast detachment of the glued material.

Zinc-Calcium phosphate coating is one of the most used procedures during preparation of plastic materials gluing base, although each project requires a specific assessment of the various phosphate solutions available.