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Coatings designed for heavy duty applications in the Maintenance and Protective Coatings market are exposed to aggressive environments such as aggressive chemical solvents, marine atmospheres, UV light, abrasion, among others. In the US as well as other areas of the world, coatings designed for these applications have been primarily solvent borne.
Coatings designed for heavy duty applications in the Maintenance and Protective Coatings market are exposed to aggressive environments such as aggressive chemical solvents, marine atmospheres, UV light, abrasion, among others. In the US as well as other areas of the world, coatings designed for these applications have been primarily solvent borne. There is a strong desire among all of the participants in the Maintenance and Protective Coatings value chain to reduce the emission of volatile organic compounds (VOCs) as well as the human health impact of these coatings. High solids coatings are one route to that objective and the other route has been replacement of organic solvents with water. Olin Epoxy developed a unique waterborne epoxy and hardener systems whose performance, when properly formulated, rivals that of the traditional solvent borne coatings. This paper will describe how we formulate the waterborne epoxy coatings; and two industrial protective coating applications including detailed performance results will also be discussed: (1) Metal application comparisons of experimental waterborne anti-corrosive primer vs. commercial solvent-based primer; (2) Concrete application in garage floor coatings.
This paper provides an introduction to the hot-dip galvanization process as an effective and important coating option and the necessary surface preparation steps for successful painting over hot-drip galvanized steel, also known as a duplex system. Proper practices and procedures must be used to prepare new and weathered zinc-coated surfaces on after-fabrication steel products for painting to improve the bond of paint to the zinc surface and provide long-term protection against corrosion.
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It is well known that fall hazards are one of the most common causes of accidents, injuries and death in the workplace including industrial painting projects. Many of these falls occur when using ladders. According to the Bureau of Labor Statistics, for example, in 2009 20% of fatal falls in all workplaces were from ladders. OSHA estimates that there are 24,882 injures, with nearly half of those injuries serious enough to result in lost work time, and 36 fatalities every year.
Protection effectiveness of commercially available vapor corrosion inhibitors powders with different particle size was evaluated. Conventional powder size of and nano-particle powder inhibiting effectiveness was compared using the vapor-inhibiting ability (VIA) NACE TM 208.