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Thermal Imaging, or Infrared Thermography, is an evaluation technique that has been used in the general construction industry for many years. Often times this is used to evaluate the degree of heat loss in a structure for insulation purposes, or for detecting water leaks behind a closed wall area. Some recent cases have also shown this technique applicable for testing strength of concrete structures.
Thermal Imaging, or Infrared Thermography, is an evaluation technique that has been used in the general construction industry for many years. Often times this is used to evaluate the degree of heat loss in a structure for insulation purposes, or for detecting water leaks behind a closed wall area. Some recent cases have also shown this technique applicable for testing strength of concrete structures. Since high solids, plural component coatings system are based upon thermoset chemistry, they often exhibit exothermic characteristics during application. The use of thermal imaging techniques during application can provide for guidance in consistent application film thickness of these coating systems
Third Generation Polysiloxane (TGPS) ambient curing CUI mitigation coatings have been used in the petrochemical industry for over five years since the “third generation” concept was introduced at NACE Corrosion 2017. These coating technologies have demonstrated positive results in both shop and field application for asset management in elevated temperature, cryogenic and cyclic applications across -196 to 650o C/ -321 to 1200o F operational temperatures. TGPS coatings have also demonstrated effective use of a two-step (primer-insulation) CUI mitigation coating approach operating up to 400o C/750o F, when compared to the traditional (CUI coating-fibrous insulation-cladding) systems.
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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.
Measuring physical parameters such as coating thickness, surface profile, and dew point is a common task for inspectors and applicators. However, those measurements are only as accurate as the instrument that performs them. Even high-quality electronic instruments can yield incorrect measurements.