Novel polyester-based resins showcase extreme weatherability under the toughest conditions for protective coatings

 
Protective coatings need to be resilient and tough. These coatings encounter many elements of weathering - photo-irradiation, moisture changes, wind, rain, chemicals, pollution, and whatever else life decides to throw at us. There is an immense global pressure for companies to keep assets in service longer by increasing performance, all compounded by ever-changing environmental and sustainability regulations. To address these challenges, formulators are on the hunt to find a resin that is not a material of concern and can provide maximum gloss retention and appearance. Eastman has developed a novel polyester-based resin that delivers exceptional weatherability that maintains appearance at 10,000 hours of accelerated weathering testing. This novel polyester-based resin can contain certified recycled content for liquid applications for those seeking more sustainable solutions. This paper will showcase the exceptional weatherability of this unique resin and compare the performance to incumbent resins such as commercially available acrylics, polyesters and fluoroethylene vinyl ether (FEVE) along with blending suggestions for those applications required to use FEVE and want to limit their usage but not compromise on performance.