Water Pump Impeller: Corroded Turbine, Italy

14th January 2026

The Solution

The most severe cavitation damage was addressed through welding to restore the structural integrity of the impellers. Resimac’s 101 Metal Repair Paste was then applied to remaining surface imperfections, ensuring a smooth and uniform profile suitable for subsequent coatings. This step was critical to achieving a durable, high-performance finish.

To accommodate the cold winter conditions, 203 Super Flow was applied in a single, high build coat. Skilled applicators carefully controlled the thickness to ensure uniform coverage and consistent protection, even with the increased viscosity caused by low substrate temperatures. On stationary components with milder wear and abrasion, 501 ARXL was applied as a single coat, delivering effective resistance to wear while maintaining application efficiency. This providing a durable solution that aligned with the plant’s long term operational goals, ensuring consistent performance from the water pump impeller under demanding conditions.

Results & Benefits

• Minimised disruption allowing the refurbishment to be completed efficiently despite winter challenges
• Improved structural integrity and meet specific requirements while maintaining high performance
• Extended the lifespan of the water pump impeller and contributed to sustainable practices
• Reducing material waste and the environmental footprint associated with frequent replacements

Huge thank you to Giuseppe our Resimac Italia distributor for this great application!

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