Protecting LNG Assets from Hidden Corrosion Threats

Corrosion under insulation (CUI) remains one of the most persistent and costly maintenance challenges for liquefied natural gas (LNG) facilities. ROCKWOOL Technical Insulation’s WR-Tech™ (Water Repellency Technology) helps to keep CUI at bay by keeping insulated equipment dry and recently LNG Industry Magazine highlighted how.

While insulation systems are essential for maintaining cryogenic temperatures of -258°F (-161°C), they can also trap water from rain, condensation, and washdowns—creating ideal conditions for corrosion to form out of sight. Over time, this unseen degradation can compromise thermal performance, lead to leaks, and drive-up maintenance costs. By some estimates, CUI accounts for as much as 10% of total plant maintenance spending.

What can you find in the article?

Ricky Seto, of ROCKWOOL Technical Insulation, explores in his LNG Industry Magazine article how next-generation insulation technologies are helping LNG operators better manage these risks. He explains how ProRox® MA 960 with WR-Tech, a stone wool insulation engineered with advanced hydrophobic and corrosion-resistant properties, can protect critical infrastructure while improving operational efficiency.

The article details how ProRox MA 960 with WR-Tech delivers exceptional water repellency even at elevated temperatures, maintaining less than 0.2 kg/m² of water absorption—five times lower than conventional insulation materials. Tested to rigorous EN and ASTM standards, it offers rapid dry-out, low chloride content, and easy installation, all while providing thermal and acoustic benefits in a thinner profile.

Ricky also discusses ProRox® PS 965 with CR-Tech™, which integrates a corrosion inhibitor directly into the insulation’s inner layer, forming a protective barrier the moment moisture reaches the pipe surface. Together, WR-Tech and CR-Tech create a dual-defense system against CUI, proven in both laboratory testing and field applications at major LNG facilities.

Access the full article to learn how these innovations are redefining insulation performance - helping LNG operators extend asset life, reduce unplanned maintenance, and enhance long-term reliability.

Read the full article