Internal pipe cleaning and preparation

Internal pipe cleaning and preparation

Internal pipe cleaning and preparation is one of the most critical steps in any intervention. In reality, it determines whether the repair will last for years — or fail shortly after.

Often, the issue is not just the leak or crack, but the overall condition of the pipe. Without proper preparation, any solution applied will not bond correctly.

What we find inside pipes

When we inspect pipes with CCTV, clean surfaces are rare. Typically we find:

• grease build-up
• solid deposits and scaling
• internal corrosion
• residues from previous interventions

All of this prevents proper adhesion of any internal coating.

Why preparation is critical

A pipe may appear repaired, but if the internal surface is not properly prepared, the lining will not bond correctly.

This can lead to:

• epoxy detachment
• early failure
• untreated areas
• recurring leaks

This is why preparation is not optional — it defines the final result.

How we perform cleaning and preparation

Depending on the condition of the pipe, we use a combination of methods:

• mechanical brushing
• removal of deposits and scaling
• controlled high-pressure cleaning
• rotating tools for critical areas

The goal is not just to clean, but to leave the surface technically ready for coating.

Preparation adapted to each case

Not all pipes are the same. A recent PVC pipe does not require the same process as an old clay or cast iron system.

We always adapt the preparation to:

• pipe material
• level of degradation
• type of intervention planned

Applying the same process to every situation is one of the main reasons repairs fail.

Before and after cleaning

After cleaning, we re-inspect the pipe using CCTV. Only then do we see the true condition of the infrastructure.

It is common for cleaning to reveal:

• hidden cracks
• open joints
• more advanced degradation than expected

This step is essential for making the right technical decision.

The foundation of any long-lasting repair

If there is one step that should never be rushed, it is this one.

Proper preparation ensures that epoxy adheres correctly and performs over time.

Not just cleaning — preparing for durability

At REVIPOX, we don’t see this as just preparation. It is part of the solution itself.

If the base is right, everything else works. If not, no system will compensate.