The Waterborne Symposium 2025

Co-Authors: Roger Mouhanna and Laurent Desfontaines

Abstract

Fluoro resins, commonly used in outdoor coatings, offer exceptional weather resistance, durability, and stain resistance. They help maintain the aesthetic appearance of coated surfaces for extended periods, reducing the need for frequent maintenance and repainting.
However, the use of fluoro resins is increasingly regulated due to concerns about PFAS substances. Regulatory bodies have implemented stricter controls on the manufacture, use, and disposal of PFAS, due to their persistence in the environment and the potential health risks. These regulations aim to minimize the release of harmful substances and encourage the development of safer alternatives.
Hybrid resins, combining inorganic polysiloxane with organic acrylic or polyurethane components, offer a compelling alternative to traditional fluoro resins for outdoor coatings. These advanced resins provide superior long-term protection and aesthetic appeal, significantly reducing maintenance costs. Available in various water-based formulations, including 1K and 2K systems, they meet diverse application needs and regulatory requirements, making them a versatile and effective choice for outdoor coatings. In the frame of this work, we will illustrate these benefits with specific examples and case studies, demonstrating the superior performance and compliance of these hybrid resins with current regulations.