Fertan is a complex, patented tannic acid, water based non-toxic product. It offers exceptional protection against rust despite being environmentally friendly. Isocyanates and high volatiles are not necessary so we don't use them.
Fertan converts loose rust to powder that can be rinsed away leaving a converted stable and inert surface.
Fertan when kept in closed containers and reasonable conditions has an unlimited shelf life.
Application is simple and safe.
Brush off loose rust and remove dirt, oil or silicone products that will prevent Fertan reaching the metal surface.
Apply Fertan by brush, roller or spray and leave for 24 hours, extending this to 48 hours in low temperatures.
The surface can now be rinsed off and over painted. The over painting can be left for weeks, months or years depending on the environmental conditions.