RFP - Rubber Fibres Plastics International 4 | 2014

Only for 12,90 EUR

Fluorinated polyols for ultra-­weatherable coatings

von Kristen Blankenship

Fluoroethylene vinyl ether (FEVE) resins are a unique class of fluorinated resins used in the formulation of various organic coatings. These resins have been studied in 2K coatings for various applications. In an effort to respond to the coatings industry’s need for more environmentally friendly alternatives, two types of waterborne FEVE resins were developed. In this study three coatings based on FEVE resins, two waterborne and one solventborne, were tested for performance properties including accelerated weathering. The results show that a waterborne 2K fluorourethane coating based on a FEVE dispersion exhibits excellent gloss ­retention after 5,000 h UV-B weathering testing as compared to the more traditional solventborne system.