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Coating systems are critical in the mitigation of corrosion on pipelines and their integrated parts.Epoxies offer a multitude of positive characteristics including: high adhesion at a chemical level,excellent abrasion resistance, and reduced water permeation rates when compared to vinylesters. A newly engineered cold weather epoxy (“Epoxy-20F”) improves upon these epoxycharacteristics and exceeds that of vinyl esters.
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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.
The coatings landscape is changing dramatically with more stringent VOC laws and extractables standards for drinking water, the products owners can rely on for lining their storage vessels is shifting. The author will discuss the advantages of using high film build, edge retentive 100% solids epoxy technology for steel potable water storage tanks.
Asset owners spend significant monies each year on the construction of new and the maintenance of existing infrastructure. More than ever, these funds can be difficult to procure and budget. The owners include, both municipal and industrial entities and funds are limited in most cases, therefore, asset service life is very important to all parties.
In the mid-1990s, the US Navy’s technical community, led by Naval Sea Systems Command (NAVSEA), recognized existing coatings used to protect the inside of ships’ tanks were failing on average 5-8 years after application. The high cost to blast and recoat over 11,000 tanks every 5-8 years, not counting submarines and aircraft carriers, was prohibitive. To address this issue, the Navy conducted a study to analyze the problem and decided to replace these legacy coatings with high solid epoxy coatings.1
Fitness for purpose of low temperature cure liquid-applied coating systems for pipeline maintenance and repair. Potential revisions to incorporate low temperature cure liquid-applied coating products into Table 1 of CSA Z245.30-14 will be presented along with commentary related to the deviations from the standard.
Acrylic based thermal insulative coating (TIC) was compared to one-component and two-component epoxy TICs. Adhesion, hardness, tensile strength, water absorption, water fog resistance, and other tests were performed.
A test protocol was developed to provide an assessment of the effects of various film defects as well as to perform post-exposure qualitative and quantitative evaluations on eight different coatings systems.
Results of laboratory tests of dual-coated (zinc/epoxy) rebars embedded in concrete and in a concrete simulated pore solution with and without chloride contamination followed by a brief description of the adopted methodologies.
Impact of exposure to a low temperature environment below -30oC (-22oF) was investigated on a carbon fiber and epoxy composite repair system that had previously been qualified to the ASME(1) PCC-21 Article 4.1 nonmetallic repair standard.