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In some quarters of society there is a public outcry regarding the significant corrosion, coatings deterioration and safety concerns associated with North American bridges. Against this backdrop, this paper describes the application more than 20 years ago of an innovative coating system for the rehabilitation and lead abatement of a major truss bridge superstructure in Alberta, Canada.
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The Energy Innovation Center’s approximately 80-year-old concrete floor had significant divots and was badly spalled and cracked. The concrete floor, often referred to as “The Racetrack” due to its oval shape, serves as the main hallway to a newly renovated technology hub and needed significant structural and aesthetic work. The re-finished floor had to offer durable functionality as well as blend into the neo-industrial look of the re-tasked building.
The State of Florida spends millions of dollars to mitigate corrosion and paint existing bridge structures each year. Since tourism is a big contributor to the State’s economy, it is of high importance to maintain these structures in a condition that is pleasing to the eye in order to provide a pleasant welcome for visitors to the Sunshine State.
Protective coating systems provide the primary corrosion protection for assets in sea water. Protective coating systems are defined as a specific combination of surface preparation and coating material applied under specified conditions to a specific structure. Over the past many years, the paint industry has focused considerable resources toward the formulation, performance testing and fine tuning of coatings materials.
Adhesion performance is required for every coating system. The adhesion between coatings and substrates is one of the most critical determining factors in the overall success of any coating material. Material design and formulation are key components of high-performance coatings and rely heavily on the accurate measurement and evaluation of adhesion in the coating systems.
This is a general outline of different types of high-performance coatings used for industrial steel structures and maintenance. We will be discussing the different types of coatings and where and when they are to be used, the make-up of these coatings, application methods, advantages/disadvantages, tolerance, and limitations. I was going to discuss the cost range of each but due to the different performance levels that each brand offers it is hard to put cost in perspective without digging into specific brands of coatings.
Protecting carbon steel oil and gas pipelines with thermoplastic liners is a proven and cost-effective solution to prevent internal corrosion and abrasion. However, the industry is still facing considerable challenges when it comes to fittings and accessories such as elbows, tees, process equipment and complicated shapes.Rotational lining (aka rotolining) is a technology which bonds a single/multi layered uniform, vacuum resistant, seamless polymer layer to the interior of virtually any metallic structure, regardless of shape and complexity. Once cooled, the result is a monolithic corrosion and chemical resistant lining that conforms to complex shapes and virtually free of stresses. This system results in a high quality and fully thermoplastic lined system.Rotolining has been proven to provide long-term protection against corrosion and abrasion in various applications including saline water pipe systems, hydrocarbon service, mining and highly aggressive chemical service. This lining system can cover a wide range of fluid requirements, temperatures and applications using high-performance thermoplastics such as HDPE, PA-12, PVDF, ETFE and PFA. Rotolining is a cost-effective alternative to conventional solutions such as FBE, corrosion resistant alloy cladding or continuous chemical injection programs.In this paper, some of the insights of the rotational lining system and usage of different high-performance thermoplastics are shared. This includes some very challenging and internationally proven case studies, which substantially benefited the entire value chain as long-term solutions
The use of accelerated laboratory artificial weathering in coatings development is necessitated by the lengthy times required for natural outdoor weathering. Across a broad range of industries, weathering results from materials exposed in subtropical South Florida have become the benchmark to which accelerated test methods are compared.
High performance fluoropolymer resin systems for coatings applications have been commercially available for years. These technologies provide the owner a coating system that will far outperform other coatings in terms of exterior performance, most notably in chalk and fade retention. This paper will discuss the chemistry of the two primary types of fluoropolymer resins utilized in the protective and architectural coatings markets and explore the mechanisms by which they provide improved exterior durability. Additionally, the benefits of fluoropolymer coatings will be explored in specific applications.
New and upcoming VOC regulations are changing the high performance coatings industry. Some products are being eliminated; others are modified all while new technologies are emerging. This paper will use South Coast Air Quality Management District (SCAQMD) regulations as the basis for discussion.