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The long term performance of any coating system will be limited by the ability of the applicator to achieve the best combination of surface preparation, application, and curing. In oil and gas facility construction, sometimes the most appropriate coating system is not the best available technology, but rather the system that ensures the highest probability for success based on the environmental conditions during application. An example is presented in which a zinc rich epoxy coating provides clear advantages over the specified inorganic zinc silicate due to circumstances specific to the particular application.
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Field pH testing on vertical concrete prior to application of high-performance protective linings is primarily required to confirm the removal of deleterious substances following surface preparation. This paper explores the use of various in situ testing techniques for measuring surface pH on vertical concrete.
Factors that make electrical substation painting unique. Worker safety and painting of radiators. Providing owners, engineers, and maintenance personnel with sample specifications that they may modify to meet their specific requirements. Historical Document 1995
HISTORICAL DOCUMENT. Procedures to design, apply, and inspect fiberglass-reinforced plastic (FRP) linings on the internal bottoms of aboveground storage tanks (ASTs) in the petroleum/petrochemical industry and in other service.
This standard provides criteria for the education, training, experience, knowledge, and skills required of Industrial Coating and Lining Applicators and Application Specialists to prepare and apply protective coatings. This standard may be used for certification of Industrial Coating and Lining Applicators and Application Specialists for other substrates or conditions, as considered appropriate by facility owners, contractors, or certifying agencies.
Describe el nivel de limpieza abrasiva que se llama "Superficial". Metodos con aire comprimido ("limpieza con chorro de arena") . Uno de cinco niveles: Metal Blanco, Metal Casi Blanco, Comercial, Industrial, Superficial
HISTORICAL DOCUMENT. This NACE International/SSPC joint standard practice covers the preparation of concrete surfaces before the application of protective coating or lining systems. The standard includes two updated tables, Table 1 details classes of surface preparation, and Table 2 provides minimum acceptance criteria for concrete surfaces before coatings are applied and relevant test methods. The updated Appendix (nonmandatory) includes two additional tables, Table A1 provides typical surface properties of finished concrete, and Table A2 provides an extensive list of surface preparation methods for concrete surfaces. This standard should be used by specifiers, applicators, inspectors, and others who are responsible for defining a standard degree of cleanliness, strength, profile, and dryness of prepared concrete surfaces.
HISTORICAL DOCUMENT. Nonvisible surface contamination (NVSC). Impact & removal. NVSC is any substance affecting coating performance that does not leave a visible trace on a bare or previously coated carbon steel surface.
Case histories show that non-visible contamination may result in rapid coating failure. Physical and chemical tests to detect same. Remediation measures. Reagents, materials, tools, procedures & results.
The use of coatings in service environments where soluble salt contamination of the substrate is suspected. Detection, removal, and testing. Cost-to-benefit ratio.
Thermal precleaning for tanks, vessels, rail tank cars and hopper cars, and equipment, preparing surfaces for the application of high-performance or high-bake coating and lining systems.
HISTORICAL DOCUMENT. Material selection, application, and inspection of pipeline liquid-epoxy coatings used for the repair of previously coated pipelines and for coating field joints externally.