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Harrogate, United Kingdom

Journal of Protective Coatings and Linings | Year: 2012

A good coating can extend the life cycle of an asset and significantly reduce cost and downtime. Alternatively, a poor coating can ruin the asset, thus contaminating a project and increasing downtime. Some basic data that should be present on a specification sheet are physical properties such as density, appearance, consistency, viscosity, slump resistance, peak exotherm and time to peak exotherm, working life, percent solids, and shelf life information. Cross hatch testing should be used for thin coatings, and direct tension and lap shear adhesion testing should be used for thick coatings. Adhesion of coatings is highly dependent on methods of surface preparation. The thermal stability of a coating is dependent on the formulation of the resin systems. Coatings chosen for immersion service should be tested by a rigorous method to determine the immersion heat resistance. Testing should be done for discoloration, loss of gloss, blistering, flaking, rusting, or other breakdown when exposed to harsh environments. Source

Microbiologically infuenced corrosion (MIC) is among the many modes of corrosion commonly found in industrial environments. While this article focuses on the oil and gas industry, that does not imply that MIC does not occur in other industries. Oil and gas is a strategic industry, as it provides primary sources of energy and byproducts for other industries such as chemical, marine, pulp and paper, waste water, and mining. Source

Flanagan K.,BEONTRA
International Water Power and Dam Construction | Year: 2014

The article focuses on the advantages of using polymeric coatings in areas such as efficiency enhancement and resistance to erosion and corrosion over traditional repair methods. Modem polymeric repair systems offer an excellent alternative to traditional repair materials. These materials are supplied in either paste grade or coating grade products used to provide long term protection to equipment against specific damage Advanced polymeric coatings completely halt corrosion by isolating the metals and closing the corrosion cell. Specialized filler materials such as ceramics and aluminum oxide allow epoxy coatings to achieve incredible wear resistances where required. Exceptional bend strengths mean these epoxy coatings combine with the metallic substrate to provide a composite component with huge advantages in terms of on-going maintenance This is all down to the ease of application of the epoxy polymer systems. Source

Bateman C.,BEONTRA
Hydrocarbon Engineering | Year: 2011

The application of polymeric linings, coatings, and repair composites to protect equipment and extend the service life of LNG assets, is assessed. The first stage of the LNG process is field production and processing and polymeric lining materials are commonly applied as an erosion/corrosion barrier to protect the construction steel of this type of equipment. Selection should be based on pre-qualification test data, actual in-field experience and economic considerations over the expected lifetime of the asset. It should be known that increasing velocity increases corrosion directly by physically damaging the protective iron sulfide scale and increasing the effective concentration of corrosive materials. The assembly and construction of the cladding is critical to ensure its effectiveness as a moisture barrier. In addition, the continuous expansion and contraction of the cladding due to thermal cycling puts pressure on the joints and will expose any weakness. Source

Oharriz O.,BEONTRA
Power Engineering (Barrington, Illinois) | Year: 2011

Various applications of non-solvented two-component epoxy systems using airless spray are discussed. The advantages of airless spraying over conventional spray methods include droplets formed are generally larger and produce a heavier pattern per single pass and production rate is increased as application is conducted faster than any other manually operated method. Bases of non solvented two-component epoxy coatings or lining systems are usually more viscous than their respective solidiflers. Single component airless spray rigs are equipped with hopper containing the final product, that is, base and solidifler mixed mechanically or by hand. Increasing the temperature of the base alone is generally sufficient to achieve good spray application. Non solvented two component epoxy system applied by airless spray is evaluated and the material used was a high performance 100 percent solid two-component epoxy barrier coating provided by Belzona. In this experiment air operated diaphragm pump and fluid heater used were a Husky pump and a Viscon heater respectively. Source

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