The April issue of CoatingsTech previews the European Coatings Show. Features in this issue include:
EUROPEAN COATINGS SHOW PREVIEW
20-Year Color Lifetimes for Architectural Restoration Coatings: Theory and Reality
Kurt Wood, Arkema, Inc.
Solventborne air-dry PVDF systems for field-applied touch-up, repair, and restoration were developed in the 1980s, and have demonstrated more than 20 years of excellent south Florida color retention when used in conjunction with weatherable inorganic pigments. Similarly, waterborne PVDF/inorganic pigment systems have now surpassed 10 years of excellent weatherability in Florida. In this article, strategies are discussed for attaining 20-year color retention lifetimes for PVDF-based coatings incorporating other types of pigments, including flake pigments and organic pigments, in both solvent- and waterborne formulations.
Novel Acrylic Epoxy Hybrid System Design for Metal Protection Application
Zhigang Hua, Hunter Shu, Allen Xu, Barry Zheng, and Aaron Yang, Dow Chemical Company (China); Zhenwen Fu, Andrew Hejl, Henry Eichman, and Kiran Baikerikar, Dow Chemical Company (USA)
The performance of novel acrylic epoxy hybrid (AEH) was studied for metal protection. Hardener selection was found to be critically important to 2K coating formulation stability and anticorrosion performance. In addition, zeta potential was found to be a good predictor of the stability when AEH binder and hardener are mixed. Hardeners with low water solubility improve corrosion resistance. Compared with 1K WB acrylic or traditional 2K epoxy systems, AEH was found to provide a better cost/performance balance.
The Paint Quality Institute: 25 Years and Going Strong
Cynthia Challener, CoatingsTech Contributing Writer
Founded in 1989, the Paint Quality Institute (PQI) has spent the last 25 years educating consumers, contractors, and retailers about the advantages of using premium quality paints and coatings. Over that time, PQI has continually expanded its offerings and now reaches its global audience through all possible media platforms. At its 25th anniversary event, PQI celebrated its first quarter century of providing paint end users the information they need, and in a way that is relevant for today.
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