The Effect of Caustic Soda Solutions on Fusion-Bonded Epoxy Coatings at High Temperatures

From JPCL, September 2018

By Hassan Al-Sagour and Mana Al-Mansour, Saudi Aramco

In the article, “Qualification Tests for High-Temperature FBE Coatings” in the July 2018 issue of JPCL, the results of qualification testing of high-temperature fusion-bonded epoxy (FBE) coatings were reported by the authors. Three candidate products were immersed at a high temperature and all showed satisfactory performance in distilled water, synthetic sea water and a 5-percent NaCl solution. Most products, however, experienced severe discoloration when immersed in a 5-percent NaOH (caustic soda) solution. In this article, the authors describe further testing conducted on one of the candidate products to determine the significance of this discoloration. ...


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Tagged categories: Adhesion; Coating Materials; Dry Film Thickness (DFT); Fusion bonded epoxy; Laboratory testing; Performance testing; Saudi Aramco

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