Belzona 5831 (ST-Barrier)

A moisture-tolerant epoxy coating for corrosion protection of wet and oil contaminated surfaces.

Belzona 5831 (ST-Barrier)

A moisture-tolerant epoxy coating for corrosion protection of wet and oil contaminated surfaces.
Description

A 2-part epoxy coating which once cured forms a barrier coating for the protection of equipment operating under immersed conditions or in contact with aqueous solutions. This solvent-free epoxy coating bonds strongly to steel and other metallic and non-metallic surfaces such as concrete or brick.

Belzona 5831 (ST-Barrier) is specifically formulated for application to wet and oil contaminated surfaces that cannot be dry for application, as well as for underwater applications. The coating displaces water from the surface ensuring maximum adhesion to damp or wet surfaces, even underwater.

  • 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
  • Prevention of corrosion and deterioration of metalic 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

4 L and 16 L

Note: Sizing and availability may change per region. Please contact Belzona for details.

* All products are subject to regional restrictions. Check with your local Distributor for more information.

ABS Approval

Product Applications

Documents

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Can Be Used Together

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QUESTIONS & ANSWERS

Yes, epoxy can be used underwater. Belzona 5831 (ST-Barrier) is an underwater epoxy that once cured forms a barrier coating for the protection of equipment operating under immersed conditions or in contact with aqueous solutions. The purpose of the material is to prevent corrosion and deterioration of metallic substrates near water, moisture, or aqueous solutions.

The mixing ratio of the industrial coating, Belzona 5831 (SY-Barrier) is 1.75 parts Base to 1 part Solidifier by weight. Or 1 part Base to 1 part Solidifier by volume. Please see the Product Specification Sheet (PSS) for more information.
The cure time for the anti-corrosion coating, 5831 (ST-Barrier) is as follows:
Temperature Light pedestrian traffic Full mechanical cure
50°F (10°C) 48 hours 14 days
68°F (20°C) 24 hours 5 days
86°F (30°C) 12 hours 2 days
104°F (40°C) 6 hours 1 day
Please see the Instructions for Use (IFU) for more information. Belzona 5831