Evaluating an insulation’s effectiveness at protecting against corrosion under insulation (CUI)
Corrosion under insulation (CUI) is a persistent damaging challenge to pipes in industrial plants, resulting in process inefficiencies, costly maintenance, unplanned downtime, and leaks or spills that pose significant safety and environmental hazards. These dangerous and expensive challenges make mitigating CUI a critical consideration when selecting an industrial pipe insulation solution. Proper CUI mitigation screening is crucial for selecting the right insulation. Providing a framework for testing CUI performance in laboratory simulations of aggressive real-world environments, the ASTM G189 standard test is designed to evaluate the effectiveness of insulation materials in protecting against CUI.
The video below explains the basics of the ASTM G189 testing procedure and showcases ROCKWOOL Technical Insulation’s ProRox® PS 965 stone wool pipe insulation with CR-Tech™ corrosion inhibitor. This innovative solution outperforms other insulation materials – even those with corrosion inhibitors – in mitigating CUI when tested to ASTM G189. If you're involved in material selection, asset integrity, or CUI mitigation strategies, this is a performance story worth seeing.
