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Barrier and inhibitor coatings are the primary defense against steel loss in water storage tanks. However, as a coating begins to deteriorate, action is necessary to prevent steel loss in the exposed areas of the substrate. Cathodic protection systems are an economical way to address preventing metal loss on the submerged surface areas of a water storage tank and have been proven to extend the useful life of coatings for immersion service.
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Cavitation erosion occurring on the rudder, which is induced by cavities from a rotating propeller due to the local pressure decrease of the fluid, has adverse effect on the operation of the vessel. Cavitation resistant paints have been highly considered to prevent the rudder from eroding, because of its relatively easy application and low working cost compared to other preventing methods.
Picture for Challenges and Solutions with Polymer, Polymer-Like Carbon, and Diamond-Like Carbon Coatings Against Geothermal Scaling and Corrosion Picture for Challenges and Solutions with Polymer, Polymer-Like Carbon, and Diamond-Like Carbon Coatings Against Geothermal Scaling and Corrosion.
Polysiloxane (often referred to as ‘hydide coatings’) products have been one of the major technology platforms used in the European offshore sector mainly due ban on isocynate among several customers. The potential long-term performance of polysiloxanes coatings have also been a strong argument for this topcoat selection in NORSOK (501 – rev 5) systems. There have been several claim-situations with delamination in epically two-coat systems, but similar problems have also been seen on traditional NORSOK systems.
Very thick polyurethane coatings are used to provide corrosion protection for water pipelines that must be placed below ground and then may be exposed to ground water. Occasionally there are construction delays and pipe sections remain above ground for extended periods before installation. Under these conditions, atmospheric conditions and exposure to solar UV light cause the coatings to lose gloss and become yellow. These changes can be very obvious and thus raise concerns that the corrosion protective qualities of the coating have also similarly diminished.
The subject paper presents updated inspection data from a Federal Highway Administration study of the effect of local environments on the degradation of alternative bridge coating materials. Exposure data covers up to nine years of service in several diverse environments, including sites representative of marine, industrial, and rural service environments. Paint deterioration is characterized as the result of local atmospheric parameters, time of wetness, and airborne contaminants
The United States Army and Marine Corps (USMC) paint their vehicles with the Chemical Agent Resistant Coating (CARC) system. This system consists of a pretreatment, an epoxy primer, and polyurethane topcoat, similar to many other industrial paint systems, but with added functional requirements (e.g., chemical agent resistance, camouflage, and signature reduction) unique to these paints. The systems that utilize these coatings are also designed for specific capabilities, of which corrosion is usually a lower priority. Lastly, the vehicles and equipment of the Army and USMC typically operate in harsh environments, which are highly corrosive.
Exterior decorative aerospace livery coatings are designed to be resistant to UV degradation as well as inert to a variety of aggressive solvents and airplane fluids to ensure adequate protection of the airframe. These coatings are also used to project a commercial airline’s identity using multiple overlapping colors in complex designs
The Permian Basin is a shale sedimentary basin approximately 250 miles wide and 300 miles long. It is located in western Texas and southeastern New Mexico. Chevron has been active in the Permian Basin through its legacy companies since the early 1920s.
Advances in technology have brought forth a new generation of Concrete Grinding equipment and accessories to reduce the labor hours to level a slab, prepare the surface and to optimize the surface profile for the specific coatings popular today. Understanding and applying these technology advances can greatly impact the tool selection for the job at hand.
On November 1, 2000, the National Football League named the city of Jacksonville, Florida as the site for the 2005 Super Bowl. It wasn’t long before the Florida Department of Transportation was contacted to help the city “spruce up” the Main Street Bridge for the occasion.