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It is fair to say that maintenance in the worldwide oil and gas industry has changed dramatically over the past ten years. Facility owners are more than ever looking to reduce shutdown times, to improve plant efficiency and to extend plant lifetimes. With this comes the increased industry understanding about corrosion under insulation (CUI) with its deleterious impact and the ongoing desire for pragmatic high performance and cost-effective coating solutions.
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The Offshore Oil and Gas environment is among the most corrosive in the world. It is also one of the mostdangerous. Providing safe working surfaces is a requirement of the Bureau of Safety and EnvironmentalEnforcement (BSEE) and is desired by asset owners and contractors alike. Balancing safety with production,downtime, and turn-around times is always a battle, but one coating manufacturer seems to have solvedthese issues through its development of a single coat zinc carbon nanotube (CNT) non-skid epoxy deck coatthat provides galvanic protection via the sacrificial metal’s electron transfer along the CNT quantum network.
Epoxy linings have long been the standard generic resin type when specifiers are selecting products for lining new steel potable water tanks or rehabilitating existing steel potable water storage tanks in North America. The one exception to this rule has been the Canadian potable water storage market. In Canada many specifiers have recognized the benefits offered by 100% Solids Elastomeric Polyurethane linings for 25+ years with admirable results.
This paper will review the features and benefits of a new epoxy coating technology that allows for true epoxy-amine curing in a single-pack product. Performance versus traditional two-component epoxy products will be compared, and environmental and convenience benefits of single-pack versus two-component packaging will be discussed.
We will review the class of epoxies that can be classified as Ultra-high temperature epoxies that can be put in service at above 150 C. The topics in this paper will include the technological issues associated with ultra-high temperature epoxy systems.
A remarkable amount of financial loss is incurred every year because of premature failures of paints and coatings. The budget to repair such failures extremely outweighs the initial cost of coatings, since excessive engineering may be looked-for to access the deteriorating areas of a coating system. Additional accountability may also be anticipated if a facility stops operation for the essential repairs to be made.
Now more than ever, epoxy coatings on concrete will only prove successful if diligent care is given to the details of concrete preparation. Preparation is more than grinding or facing of an existing surface and should ideally begin in the developmental stages of the structure.
This presentation will cover Why adheson matters, paint Specifications and test methods.
Dry abrasive blast cleaning is a commonly used surface preparation method to achieve the necessary surface cleanliness and roughness for the application of high-performance protective coatings. The effectiveness of abrasive blast cleaning depends on various factors, and some studies have indicated that the blasting abrasive used to clean the surface is crucial for the performance of the coating. The previous work evaluated the performances of two liquid-applied epoxy pipeline coatings (coating A and coating B) applied to 15 different surfaces.
Shop and field conditions of high humidity and cool temperature during curing of amine-cured epoxy coatings can produce a haze or oily residue on the surface. This is commonly referred to as “amine blush.” The residue is caused by the presence of unreacted amine on the surface of the epoxy coating reacting with carbon dioxide and moisture in the air to form a carbamate.
Brief Background Throughout the last decades, coatings science has incorporated very versatile inorganic materials into organic coating to form the inorganic/organic hybrid coating systems. Combining various organic and inorganic constituents in combination with different preparation and processing methods, very versatile materials can be produced for optical, structural and coatings applications. The hybrid products have combined the properties of the inorganic materials, i.e., hardness, durability, and thermal stability, and organic polymers, i.e., flexibility and toughness.
Corrosion under Insulation (CUI) is accelerated corrosion that takes place under insulation typically used to conserve energy, help with process control, and protect workers from temperature extremes. CUI is an issue for facility owners in many industries that use heat or cold in their industrial processes, including chemical processing, refining, fertilizer manufacturing, and power generation. Insulation used in these applications is generally mechanically attached to the substrate vessel or pipeline and is typically covered with cladding. Cladding is typically made out of metal or plastic and is applied to protect the insulation from physical damage and to keep water away from the insulation and substrate.