Table of Contents
Understanding DSEAR Compliance in the Water Industry
In hazardous water and wastewater environments, one spark is enough to cause serious harm. The presence of gases such as methane and hydrogen sulphide makes compliance with Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) in the water industry essential.
These regulations ensure that risks are identified, controlled, and mitigated to protect both personnel and critical infrastructure.
Meeting Evolving Compliance Demands
DSEAR compliance is ongoing. As infrastructure ages and operational pressures increase, water companies must continuously reassess repair methods and materials.
The challenge lies in maintaining safety while keeping assets operational, requiring solutions that reduce risk without introducing unnecessary downtime.
Safer Alternatives to Traditional Repair Methods
Conventional repairs such as welding introduce heat and sparks, increasing ignition risk and often requiring shutdowns. By contrast, Belzona SuperWrap II provides a cold-applied composite repair solution that completely eliminates the need for hot work, making it ideal for hazardous environments.
Engineered for long-term structural reinforcement, Belzona SuperWrap II delivers exceptional strength, durability, and corrosion resistance while maintaining operational safety.
The system can be applied directly onto manually prepared substrates using ATEX-rated tools, achieving SSPC-SP11 surface cleanliness standards where abrasive blasting is impractical or restricted.
A severely weakened pipe in a hard-to-access area required urgent reinforcement to prevent failure. Using power tools and Belzona SuperWrap II, the the repair avoided costly shutdowns and replacement, providing a fast, durable solution in a challenging environment.
Read more about this case study here
Supporting Compliance Through Advanced Solutions
Belzona UK supports DSEAR compliance in the water industry through engineered polymer systems designed for hazardous environments. By using cold-applied materials, repairs can be carried out without introducing heat or sparks, helping to remove potential ignition risks from the outset.

These solutions, such as Belzona 4351 also incorporate static dissipative properties to reduce the build-up of electrostatic charge, providing added protection in areas where flammable gases may be present. At the same time, newer materials have been developed with lower surface preparation requirements, making them practical to apply in restricted or hard-to-access locations.
Crucially, many repairs can be completed while equipment remains in service, allowing maintenance to be carried out without disrupting operations. The result is a safer, more efficient approach to maintaining critical assets while meeting the demands of DSEAR compliance.
Proven Performance and Long-Term Reliability
Belzona solutions are designed for demanding conditions, offering corrosion resistance and long-term protection.
A repair of a sludge tank repair completed over ten years ago was recently surveyed. The application was prepared using manual tools and cold-applied. The repair is still in place and the tank is still going strong!
This demonstrates how cold bonding solutions can deliver lasting performance while supporting safer, more resilient infrastructure in DSEAR-classified environments.
FAQ
Yes, but with controls:
You must ensure the area classification is understood (Zone 1, Zone 2, etc.)That the equipment used is ATEX-certified if required. No ignition sources are present and there is adequate ventilation.
Typical PPE includes:
Anti-static clothing (if required by zone)
Chemical-resistant gloves
Goggles/face shield
Respiratory protection (if ventilation limited)




