Corrosion under insulation is the corrosion that occurs when steel equipment becomes corroded as a result of water penetration. 

Corrosion under insulation is extremely critical as it makes up a large percentage of the global process industries maintenance expenditures, forced shutdowns and lost production.

To provide good corrosion protection we can simulate CUI (corrosion under insulation) conditions in our laboratory through the following tests:

• ISO 19277 (Qualification testing and acceptance criteria for protective coating systems under insulation)
• Hot/ cold cyclic test.