Heat Exchangers – Erosion and Corrosion Protection

Belzona metal repair composites are designed to achieve long-term erosion and corrosion protection of heat exchangers.

Commitment to excellence

Durability

Protection

Efficiency

Long-Lasting

Restore Performance. Reduce Downtime. Reinforce for the Long Run

Heat exchangers are critical to industrial operations, yet they face constant challenges from corrosion, erosion, scaling, fouling, and mechanical wear. These issues lead to reduced thermal efficiency , and unprecedented failures that can shut down entire systems.

Galvanic corrosion can lead to rapid metal loss at contact points between dissimilar metals, compromising structural integrity, reducing thermal efficiency, and increasing the risk of leaks or system failure.

Traditional repair methods often require costly disassembly, welding, or part-replacement, resulting in prolonged downtime and lost productivity. Accessing internal components for repair can be difficult, while ensuring long term protection against aggressive operating environments adds complexity.

Industries need solutions that minimise disruption, reduce costs, and extend equipment life without compromising performance or safety. And, Belzona UK is here to offer a solution to your repair and maintenance needs.

How to repair and increase life expectancy of heat exchangers

Our Solutions

Corrosion-resistant coatings – Protect tube sheets, water boxes, and end covers from chemical and galvanic attack.
Cold-applied repair materials – Enable in-situ repairs without the need for hot work or disassembly.
Metal rebuilding composites – Restore eroded or corroded surfaces to original dimensions.
Leak sealing solutions – Address pinhole leaks and through-wall defects without shutdown.
Enhanced performance – Smooth, protective linings improve flow efficiency and reduce fouling.
Long-term protection – Extend equipment life and reduce maintenance frequency.
Fast cure – Minimise downtime with fast-curing materials suited for time-sensitive repairs.
Versatility across industries – Effective in power generation, oil & gas, water treatment, and more.

Case Studies

Belzona UK rescues 3.1m diameter evaporator tube sheet

Heavily eroded heat exchanger components repaired and future proofed

How to Rebuild a Corroded Cooler at a Nuclear Power Station with Belzona Epoxies

FAQ

Heat exchanger efficiency is often reduced by corrosion, erosion, fouling, and rough internal surfaces that restrict flow and heat transfer. Over time, these issues increase energy consumption and reduce operational performance.

Belzona UK can restore damaged surfaces and improve hydraulic performance using Belzona 1341 (Supermetalglide), a specialist coating designed to create an ultra-smooth surface that reduces friction and protects against erosion and corrosion.

In many applications, efficiency improvements of up to 8% or more can be achieved following refurbishment.

Yes. Many heat exchanger leaks can be repaired without the cost and downtime associated with replacement.

Depending on the extent of the damage, Belzona UK can provide composite repair solutions that seal leaks, rebuild damaged metal, and restore equipment integrity.

These cold-applied repairs eliminate the need for hot work and can significantly reduce outage durations while extending equipment service life.

Corrosion is typically caused by aggressive process fluids, moisture ingress, erosion, and chemical attack. If left untreated, corrosion can lead to wall thinning, reduced performance, and eventual failure.

Belzona UK offers erosion and corrosion-resistant coatings that protect heat exchanger surfaces from further deterioration while helping to improve reliability and extend asset life.

Repeated tube failures are often caused by erosion, corrosion, vibration, or aggressive process conditions. Replacing tubes alone may not address the root cause of the problem.

Belzona UK can inspect the damage and recommend protective solutions that reduce erosion and corrosion, helping to prevent recurring failures and improve long-term reliability.

Yes. Eroded, corroded, or mechanically damaged surfaces can often be rebuilt using Belzona 1111 (Super Metal) before being protected with specialist coatings.

This restoration process can return critical surfaces to their original profile, improve performance, and extend the operational life of the heat exchanger without costly replacement.

From first assessment to final inspection, our team of experts offer a turnkey solution as part of our Product Plus service for your maintenance and repair needs

Application / Training

As a leader in industrial protective coatings and repair composites, Belzona has a proven track record for providing long-term solutions to a variety of maintenance problems in countless areas.

In our 585sqm state-of-the-art training facility, Belzona UK can offer a thorough Training Programme to provide experienced applicators with theoretical and practical knowledge for achieving a successful application.