Watch this video. See how WR-Tech reduces maintenance costs

Corrosion under insulation is costly. It accounts for an estimated 10% of overall maintenance costs and 40-60% of pipeline maintenance costs. In order to mitigate CUI, it’s vital to keep steel pipes, vessels and columns as dry as possible.

Revolutionary WR-Tech water repellent technology is five times more water repellent at operating temperatures up to 482°F than standard EN-compliant stone wool. And it provides the lowest possible water absorption in the full CUI temperature range — even after heating and aging.

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Insulate yourself from higher maintenance costs while enhancing total plant performance and efficiency with ProRox stone wool insulation.

  • Check out the many rewards of meeting the challenges of CUI
  • Benefits include reduced thermal losses and enhanced continuous process operations
  • Lower maintenance and operating costs

Discover all the advantages of CUI mitigation with ROCKWOOL ProRox stone wool insulation with WR-Tech additive:

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total costs of corrosion (NACE)


of pipe maintenance costs are due to CUI


Of the CUI incidents occurs on pipes (ExxonMobil)

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We have a winner.

WR-Tech™, our revolutionary Water Repellency Technology for combatting corrosion under insulation (CUI), is a winner of the 2019 Materials Performance Corrosion Innovation of the Year Awards.

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What does NACE* say?