Belzona 5831 | ST-Barrier | Epoxy Coating

Belzona 5831 (ST-Barrier) is a powerful, 2-part epoxy coating designed to protect equipment operating under immersed conditions or in contact with aqueous solutions. This solvent-free coating provides superior corrosion protection to steel and other metallic and non-metallic surfaces, such as concrete or brick. It's perfect for wet and oil-contaminated surfaces and underwater applications. With maximum adhesion to damp or wet surfaces, this epoxy coating ensures long-lasting, reliable protection.


Key Benefits:

  • Simple mixing ratio
  • Application and cure at room temperature - no hot work involved
  • Cures underwater
  • Reduced health and safety risks as it is solvent-free
  • Excellent bonding to wet surfaces
  • Tolerant to oil contamination
  • No shrinkage, expansion or distortion
  • Prevents galvanic corrosion 
  • Excellent bonding to many metal surfaces including steel, stainless steel and other specialist steels as well as to non-metallic surfaces such as concrete and brick


Applications of Belzona 5831 (ST-Barrier) Epoxy Coating:

  • Prevention of corrosion and deterioration of metallic substrates in splash zones, pipework, tanks, bunds and clarifiers
  • Protecting submersible pumps, valves and transformers from the effects of galvanic corrosion
  • Long-term repair and coating of oil and water leaks
  • Sealing of joints and flanges


About the Brand:

Belzona specializes in high-performance industrial coatings, repair composites, and maintenance materials, catering to sectors like oil and gas, power, and mining. Their 60+ years in business emphasize durable, easy-to-apply solutions to enhance machinery lifespan, reduce downtime, and cut maintenance costs.


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