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Why is cut-edge corrosion a problem? And which system do we use to solve it?

Cut-edge corrosion can cause significant lasting damage to your cladding. At Cladding Coatings, we use approved, industry-leading systems to prevent problems and protect your property.

What is cut-edge corrosion?

Before Roof Repair and Painting

Cut-edge corrosion happens when the cut edge of your metal cladding sheet begins to deteriorate. When this happens, it starts to peel back.

Cut-edge corrosion is common. Yet it soon becomes a big problem if left untreated. Not only does it look unsightly, but it also causes major external and internal property problems if you don’t get expert treatment quickly.

This is because cut-edge corrosion means your building is no longer watertight. Exposure to the elements allows water to enter the property, causing both exterior and interior damage. And corroded cladding is a really significant problem for your safety, as it negatively impacts the structure and security. If left to this stage, expensive and disruptive cladding replacement is your only option, so it’s vital you get expert assessment and treatment as early as possible.

Why does cut-edge corrosion happen?

There are a number of reasons why cut-edge corrosion happens. To begin, it may be that errors in manufacturing and installation when the cladding was first installed mean the sheets were left vulnerable to cut-edge corrosion damage. Neglecting to put a building maintenance schedule in place can also accelerate the cut-edge corrosion problem, as it prevents small issues being captured and allows the corrosion to eat into the metal cladding. Cut-edge corrosion can also simply be a result of ageing and weathering.

You’ll also find the extent of cut-edge corrosion problems varies depending on where your building is located. For example, a property in an industrial area on the coast (like a large marine warehouse) will be exposed to a lot of salt in the atmosphere. It is more likely to suffer from cut-edge corrosion than a heated, inland property in a rural area (such as a village school). You can find out more about corrosion classification levels and how they affect your building here.

How do we treat cut-edge corrosion?

Cladding Coatings
Cladding Coatings
Cladding Coatings

At Cladding Coatings, we repair and refurbish metal cladding sheeting using industry-leading systems. We are approved applicators of these and have many years experience so you can trust us to provide you with the best system, high quality repair and guarantee our work. Even though there are a wide number of cut edge treatments available they are not all suitable for every project and the correct application is key to getting both a good finish and the long lasting protection it promises.

Cladding Coatings systems Tor Coatings logo

Tor Elastaseal

Tor Elastaseal™ Fibretex. It is a cold liquid solution with a liquid finish application, so is quick to install on even the most complex surfaces.

The Tor Elastaseal™ Fibretex system was specifically developed to solve long term waterproofing problems. This is because it provides an elastomeric and UV stable finish that’s incredibly water resistant, providing ultimate protection against any water damage or leaks.

At Cladding Coatings, we use the Tor system as, even though it’s highly durable, it still allows the cladding to breathe. This is essential to prevent condensation building up in the metal cladding sheeting. We’re also approved by Tor manufacturers as accredited installers of the system. We’ve earned that by proving we have the knowledge, skills and experience using the product to apply it with total expertise.

Sharmans Seamsil

Cladding Coatings systems Sharmans logo

Sharmans Seamsil 15 year cut edge corrosion treatment is one of the leading systems available on the market. Sharmans Seamsil is a silicone-based treatment specifically formulated to prevent the adverse effects of rust, chemical corrosion, industrial pollution, ageing, and weathering. It is particularly effective in marine or coastal environments.

The system works by sealing the damaged lap joint area which prevents water from penetrating the metal cladding sheet. The sealed joint is then protected and prevents future damage and corrosion.

Liquasil Flexlap

liquasil flexlap

Liquasil Flexlap is another high-performance cut edge corrosion treatment we use.

This system uses surface and wet tolerant (SWT) corrosion primer which is marine grade and designed to stop and prevent rust from occurring. It can even be applied to red rusted surfaces that are soaking wet or to surfaces completely underwater.

Liquasil Flexlap provides ultimate protection and has been proven to withstand even the most extreme marine environments. It is available in a range of RAL colours making it an ideal solution for treating cut edge corrosion.

These systems are protected by our Cladding Coatings’ guarantee of an absolute of minimum of ten years on all our work. This gives you, the business owner or project manager, complete peace of mind in the investment and durability of our work.

Cut-edge corrosion may seem like a worrying issue. Yet with the right treatment at the right time, using tried and tested systems applied by our trusted and experienced external building maintenance team at Cladding Coatings, your property will remain protected inside and out.

For more information about how we work, with case studies from household name clients across the UK, visit our website. You can also get in touch with us here. Our friendly, expert team are always on hand to help.

Read more about our cut edge corrosion repair service here.

Cladding Coatings Ltd

  • Address: Tanners Business Centre, Waterside Mill, Chew Valley Road, Greenfield, Oldham OL3 7NH
  • Phone: +44 (0)161 626 3493, +44 (0)7961 798 799
  • Email:

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