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Over the last years an extensive amount of testing has been performed to test and qualify coating systems for CUI protection. In a conference paper published by Association for Materials Protection and Performance (AMPP) and authored by Jotun R&D experts, a variety of test results are presented to show how complex it is to qualify coatings to prevent CUI occurring.
White paper
Video on corrosion under insulation (CUI)
The fight against corrosion, particularly corrosion under insulation (CUI), is increasingly becoming a main focus for the energy sector. How is the industry addressing this issue and how can risk be reduced? A new standard test procedure that addresses this critical industry challenge might pave the way, so that the energy sector better can maintain steel integrity.
It is an established truth that a system utilizing a zinc silicate primer will have the longest lifetime and offer the best corrosion protection in the most challenging atmospheric conditions. However, the issue of corrosion under insulation has emerged as a significant problem.
Before formulating an inorganic zinc silicate (IOZ) for elevated temperature use – temperatures above 120°C – we must determine what the main challenges are for an IOZ in these conditions.
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