Paul Atzemis and Jack Walker discuss the evolution of coatings under insulation. They explore the early practices and what is commonly performed today.

  • 0:00 Intro
  • 1:07 Creative topic selection
  • 2:05 Coatings under insulation, the beginning
  • 3:16 Coatings under insulation compared to immersion service
  • 3:45 The effects of heat, oxygen, and moisture on the corrosion of assets under insulation
  • 4:00 The early adoption of inorganic zinc in the 1980s for CUI
  • 4:40 NACE study of CUI
  • 5:42 NACE study eliminates inorganic zinc as an option for CUI due to polarity reversal
  • 6:58 Salt effects on zinc polarity reversal
  • 7:47 Fireproofing and its similarity to insulation
  • 9:25 The introduction of NACE SP0198

  • 11:06 Wrap up

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