Belzona 5831LT
Low Temperature ST-Barrier
A moisture-tolerant epoxy coating for corrosion protection of wet and oil contaminated surfaces at lower temperatures.
An environmental moisture-tolerant barrier coating, specially formulated for the protection of metallic and non-metallic surfaces at lower temperatures. Uses moisture-tolerant technology to displace surface contaminants and ensure adhesion to damp, wet, oily, or underwater surfaces.
- SeriesBelzona 5000 Series
- Documents3
Overview of Belzona 5831LT
An environmental moisture-tolerant barrier coating, specially formulated for the protection of metallic and non-metallic surfaces at lower temperatures. Uses moisture-tolerant technology to displace surface contaminants and ensure adhesion to damp, wet, oily, or underwater surfaces.
Key Benefits
Bonds tenaciously even when surface preparation is minimal or substrate is contaminated
No solvents, no shrinkage during cure
Cures at room temperature without hot work
Bonds strongly to virtually any rigid surface
Application Areas
What this product handles, grouped by equipment area — each links to the full application.
Ships & Maritime Structures
3 applications- Oil & fluid leak sealingIn-situ sealing of oil and fluid leaks on storage tanks, engines, gearboxes, transformers and sumpsLearn more
- Splash-zone & immersed corrosion protectionPrevention of corrosion and deterioration of metallic substrates in splash zones and underwater areasLearn more
- Pipework & tank corrosion protectionCorrosion protection on pipework, tanks, bunds and clarifiersLearn more
Technical Data
Performance Characteristics
- Low temperature cure
- Cures down to 5°C (41°F) substrate temperature
- Cures underwater and on damp/oily substrates by displacing surface contaminants
- Bonds tenaciously to steel, stainless steel, and to non-metallic surfaces such as concrete and brick
- Outstanding corrosion protection in immersion service and splash zones
- Refer to the attached Product Specification Sheet for full mechanical and adhesion data
Working Life
- At 5°C (41°F)
- Extended working life
- At 20°C (68°F)
- Approximately 1 hour from start of mixing
Curing Time
At 20°C (68°F)
- Touch dry
- 6 - 8 hours
- Overcoat window
- 16 - 48 hours
- Full immersion service
- 7 days
At 5°C (41°F)
- Cure times approximately double — refer to the IFU for full tables
Service Temperature Limits
- Application substrate temperature range
- 5°C to 30°C (41°F to 86°F)
- Continuous service temperature (immersion)
- Up to 50°C (122°F)
- Lower service temperature limit
- -40°C (-40°F)
Mixing & Application
Product PDFs
Gallery
Videos
Frequently Asked Questions
How is Belzona 5831LT different from Belzona 5831 (ST-Barrier)?
Belzona 5831LT shares the moisture-tolerant technology of Belzona 5831 (ST-Barrier) but is specially formulated for application and cure at lower substrate temperatures from 5°C to 30°C (41°F to 86°F), making it the preferred choice for cold-weather and cold-water applications.
Can Belzona 5831LT cure underwater?
Yes. Like the standard Belzona 5831, Belzona 5831LT cures underwater and bonds to wet, oily, and submerged substrates by displacing surface contaminants.
What is the lowest temperature at which Belzona 5831LT can be applied?
Belzona 5831LT can be applied and cured at temperatures as low as 5°C (41°F), with service temperatures down to -40°F (-40°C).
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