By Ralph Jan Wörheide, ORONTEC Introduction When it comes to color testing, there are many precise instruments, color correction software packages, automated spray machines, etc., in the marketplace. Colorimetry is a science of great importance to the paint industry, especially in meeting the high-quality standards of customers. However, the high scientific level and the precision […]
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Alkyd polymers provided as a latex are a recent and commercially viable alternative to the more traditional solutions in organic solvents.
Controlled Polymer Morphology with Functionality Addresses Consumer Demand for Deeper Tones and Lower VOC by Partha Majumdar, David Conner, Yuanqin Liu, Carol Hawkins, Gary W. Dombrowski, and Paul Doll, Dow Coating Materials From flat to eggshell to semi-gloss, architectural paints have made incredible gains in ultra-low VOC paint performance, but achieving a smooth, hard, glossy […]
Recently, two-component (2K) Michael Addition-based coating systems providing fast drying at room temperature in combination with tunable open time and very long pot life have entered the market.
By De Backer, M.P. Diebold, and M.P. Milone, The Chemours Company While there is an intuitive connection between wall brightness and the electrical demand for illuminating a room, there has been little data reported to quantify this relationship. Here, we report the relative electrical load needed to light a room at the 500 lux level specified by […]
By Jonathan Doll, Michael Venturini, and Anthony Rohrer, Sun Chemical Corporation Introduction Powder coatings are solvent-free coating systems used for many applications due to their durability, ease of application, and environmental advantages vs liquid coating systems. Powder paints are applied to a substrate electrostatically and cured at relatively high temperatures to form a continuous, durable […]
By Yang Wang, EMD Performance Materials Corp., and Ralf Grottenmuller and Theresa Lorenz, Merck KGaA, Darmstadt, Germany Polysilazanes are pre-ceramic polymers with a silicon-nitrogen backbone. In recent years they have developed as a high-performance binder in protective coatings for transportation vehicles, commercial and residential buildings, and industrial plants. This article reviews their structure-property relationship and […]
Occasionally, one or more solvents in a paint formulation need to be replaced due to VOC or HAPs concerns, toxicity, cost, odor, or lack of availability…
By Cynthia Challener, CoatingsTech Contributing Writer Over the last decade, the titanium dioxide (TiO2) market has been a bit turbulent. Dramatically reduced demand during the economic crisis of 2008/2009 led to plant curtailments and shutdowns. These, in turn, led to low availability—and dramatic price increases—in the following years when worldwide demand surged. By mid-2012, however, […]
By Clifford K. Schoff, Schoff Associates My recent articles on Hansen Solubility Parameters (CoatingsTech, May, July, and September 2018) have raised questions about what other solvent properties are important and about how to choose solvents. The main job of solvents is as carriers for resins, pigments, and other components. Other functions include controlling viscosity for […]