SF6 Leak Sealing

Sulphur hexafluoride (SF6) is a highly potent greenhouse gas used in the power industry for insulation and current interruption in electrical equipment, such as transformers, switchgear busbars and circuit breakers.

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From Risk to Resilience: Industrial-Grade SF₆ Leak Solutions

SF₆ (sulphur hexafluoride) is widely used in electrical distribution equipment for its excellent insulating properties, but managing leaks in heavy industries presents serious challenges. As a potent greenhouse gas with a global warming potential 23,500 times that of CO₂. Even small leaks carry significant environmental and regulatory consequences.

Detecting leaks is difficult, as SF₆ is colourless, odourless, and non-flammable, requiring specialised equipment for monitoring. Traditional repair methods often involve system shutdowns and hot work, increasing downtime, safety risks, and operational disruption. Additionally, repairs must meet strict compliance standards to avoid penalties and maintain equipment integrity.

As a result, heavy industries need fast, cold-applied, and proven leak-sealing solutions that can be safely implemented without interrupting critical operations. And, Belzona UK is here to offer a solution to your repair and maintenance needs.

How to seal SF6 leaks with Belzona's SF6 Fix solution

Our Solutions

  • Cold-applied leak sealing – Enables fast, safe sealing without hot work or shutdowns.
  • Minimised environmental impact – Prevents the release of SF₆ to undetectable levels.
  • In-situ application – SF₆ fix can be carried out directly on live equipment.
  • Non-conductive materials – Safe for use on electrical components and systems.
  • Rapid return to service – Reduces downtime and maintains operational continuity.
  • Compliance support – Helps meet environmental and regulatory standards.
  • Customised solutions – Adaptable to various leak types and equipment geometries.
  • Proven field performance – Trusted in substations and high-voltage environments globally.
  • Removable Repair – The SF₆ fix solution can be easily removed for testing and observation

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.

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