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Crude oil and its derivate have many applications in almost all industries as O&G are the main resources that move the entire world. The oil and gas industry operate in demanding environments that pose significant challenges to equipment and infrastructure integrity. Facilities such as Gas Oil Separation Plant (GOSP) tanks, submerged areas, DGA columns, desulfurization units, and sour gas treatment facilities are subjected to high temperatures, corrosive substances, and harsh operating conditions.
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This paper describes the performance properties of coconut-based polyol resin used in polyurethane coating systems compared with commercially available polyurethane paints which use petroleum-based acrylic or polyester polyol resins, in terms of physical and corrosion properties under accelerated laboratory weather conditions. The studies also show the chemical resistance and protection properties from the discoloration effects of ultraviolet (UV) light on the painted metal test panel substrate specifically cold rolled steel.
Styrenated Unsaturated Polyester & Vinyl Ester coatings are accepted for use in chemical immersion tank linings. The primary advantage is the increased chemical resistance to harsh commodities and fast turnaround time compared to epoxy coatings. However, styrene is becoming heavily regulated due to its safety and health concerns.
The use of sustainable materials in the flooring market has gained widespread interest in recent years. Bio based raw materials contribute significantly to these efforts and are used to prepare environmentally friendly coatings. Castor oil-based emulsions are used as polyols in waterborne polyurethane coatings. These systems have outstanding chemical resistance and good durability. But they have inherent issues like very short pot life, poor appearance / flow properties, and delayed early hardness development.
The US Marine Corps (USMC) uses the various paints within the specifications that makeup the CARC system on their vehicles and weapon systems. Their use includes new system acquisition, field repair, major repaint activities and during complete system rebuild at the depots.
The crude oil produced by fracking or hydraulic fracturing method are high in sulfur content (0.5%)1. The vast majority of vessels that are used in the petrochemical industry to store and transport materials are constructed using Carbon steel. Coating linings used for corrosion protection inside of vessels and tanks must perform under severe conditions such as an exposure to corrosive gasses ( H2S) and carbon dioxide as well as high temperatures, high pressures and often must withstand the cold wall effect and rapid decompression.
This paper gives an update on the latest developments of the new generation of waterborne Polyurethane Topcoats (PU topcoats) for flooring which were presented during the annual SSPC meeting October 2003. Topcoats are commonly used in the construction industry over functional floor coatings or as sealers for concrete.
Due to their excellent performance properties, epoxy coatings are commonly used over metal and concrete substrates in applications where corrosion protection and chemical/solvent resistance are key requirements. One weakness of these epoxy coatings is their poor UV durability. Epoxy coatings typically have poor gloss and color retention as well as poor resistance to chalking on exterior exposure.
The practice of induced heat to decontaminate a tank (pre-baking) that has been in previous service for re-lining and / or the post application heat curing (force curing) of an applied lining may be considered as a lost art known currently to the few lining specialist within the industry. The objective of the presentation is to inform or remind Owners, Specifiers, Inspectors, Applicators and Vendor Representatives of the requirements and benefits of these processes to obtain a successful relining or tank lining project and additionally attain time savings and prevent cold curing issues.
Corrosion and cavitation erosion on steel structures are problems and can have a huge impact on safety and economy. In order to prevent corrosion, protective coatings can be used as a barrier between the steel surface and the corrosive elements such as seawater or various liquid cargos. However, when coating systems fail the surface will be exposed to the environment with all consequences. From that perspective, the weakest link is the coating used to protect the steel.
A new system for waterborne 2K epoxies has been developed that presents a measurable value proposition. Performance testing results are presented that demonstrate the key features of coatings prepared with the new amine hardener and two different epoxy dispersions. The hardener is ultra-low-VOC and contains no free amines (no need for hazard labeling).