CoatingsPro Magazine

MAR 2018

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

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Page 22 of 84

22 MARCH 2018 COATINGSPROMAG.COM An important part of the process is providing and maintaining the right temperature to allow the paint to cure. P aints and coatings provide an essential barrier to protect industrial equip- ment from corrosive environments and extend their safe operating life. Yet regardless of whether we're talking about storage tanks, offshore vessels, or specialty tools and equipment, forming a robust and reliable barrier is about more than simply applying a coat of paint. An important part of the process is providing and maintaining the right temperature to allow the paint to cure. In a field situation, very low ambient temperatures complicate this process during refurbishment jobs in winter months (e.g., in the northern United States, temperatures may stay well below freezing throughout the process). In some regions, notably along the U.S. Gulf Coast, high humidity levels in the source air may necessitate the use of dehumidi- fiers to dry the air prior to heating it and introducing it to the vessel. Industrial heating providers have responded to these challenges by devel- oping a range of systems that can meet the size and complexity of any curing application. Coupled with customiz- able temperature sensing and control systems, these heating solutions help ensure more uniform and efficient curing of coatings and paints in a wide range of ambient conditions — from cold to hot temperatures and from humid to dry climates. Customizing Through Collaboration Without a thorough understanding of the field conditions, the end use of the equipment and the ow ner's expectations and requirements, the curing operation may not proceed as efficiently as it could. In a tank curing application, for example, if the heating solution raises the temperature in the vessel too quick ly or above a desired range, the risk of non-uniform dr y ing increases. T he top surface of the paint layer may dr y faster than the paint closer to the tank wall, resulting in the formation of a skin that slows the dr y ing process. Conversely, too low a curing temperature raises the risk that the coating w ill cure too slowly, adding time and cost to the refurbishment process and extending the time to bring the vessel back into ser vice. Avoiding situations such as these can only be accomplished through upfront communication and collabo- ration between the heating provider, the asset owner, and in many cases, the paint suppliers and contractors. In the tank scenario, such collaboration will uncover important factors, including the size and thickness of the tanks, the presence or absence of insulation around the tanks, and the location and number of entry points and ventilation ports. If the tanks are located in high wind areas, it may be necessary to build some barrier around the perimeter to protect them from the wind. e paint supplier must share the Notes From the Field Notes From the Field By iago Moraes, Sales Leader for Building Services and Construction, Aggreko Efficiency Heating Up in Industrial Curing Applications

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