Closing the Gap between Water and Solvent-borne Anticorrosion Coatings via New Binder Concepts

Water-based anticorrosion resins have gone through many stages of evolution. Despite steady progress, there is still need for improvements. Recent innovations in the area of polymer colloids and hybrid materials offer new opportunities to develop novel coatings for metal protection. By choosing the appropriate technology, it is possible to design acrylic binders with improved barrier properties, low water uptake, and improved anticorrosion properties. Different methodologies will be discussed including: designed particle morphology, engineering of the water phase composition, and the use of hybrid binders. Also, a new technology exceeding basic barrier function will be presented. This utilizes a built-in, enhanced corrosion protection mechanism resulting in outstanding performance in salt-spray and early-rain resistance.