A recent article on BIC Magazine’s website reviews how ROCKWOOL stone wool insulation with WR-Tech (water repellency technology) minimizes water absorption to protect the underlying steel surface from corrosion under insulation (CUI).
Corrosion is a common issue for storage tanks located in plants, terminals and tank farms, affecting both inside and outside surfaces. Corrosion originates on the outer tank walls covered with insulation, due to the ingress of water that reaches the metal surface to cause a localized corrosive attack called a CUI attack. This can compromise tank integrity, reduce insulation performance, and increase maintenance costs. By some industry estimates, CUI accounts for up to 10% of total plant maintenance spending.
Cut CUI Risk — ProRox® MA 960 with WR‑Tech™ Keeps Steel Dry and Safe
The article, written by ROCKWOOL Technical Insulation, discusses how ProRox® MA 960 with WR-Tech™, a stone wool–based mat wrap insulation containing an innovative water-repellent agent, minimizes water absorption and speeds up drying to help protect the underlying steel from CUI.
The article reviews rigorous testing to European and International standards, showing that ProRox with WR-Tech absorbed significantly less water and showed zero water retention after 48 hours—all while maintaining excellent thermal and acoustic insulation performance.
Ultimately, WR-Tech gives operators a powerful tool in the fight against CUI, ensuring safer, more efficient and more sustainable plant operations.
Want to read more? Check out the full article here.