Epoxy resin-based coatings have been used for many years to line the inside of chemical storage tanks and process vessels due to their good thermal and chemical resistant properties in Oil & Gas industry. They are particularly suited for services that require resistance to hydrocarbons, water immersion, caustics and acids. A lot of paint manufacturers and coating formulators are working on this area to develop new product to meet the more and more challenging requirements.

Several unique multifunctional epoxy resins and amine curing agents have been developed, which offer superior performance in HTHP chemical resistant liner application. A detailed low VOC, high solids chemical resistant liner formulation is described. Various performance aspects of experimental and commercial benchmark are compared, including dry time, Tg, hardness, multiple chemicals immersion tests at elevated temperature, up to > 400 °C dry heat test and thermal cycle test. Experimental formulas demonstrated better solvent resistance, high temperature water immersion performance and dry heat resistance comparing with the commercial control.

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