Belzona 5851 (HA-Barrier)

An epoxy-based repair composite with extended working life for metal repair.
Where to Buy

Belzona 5851 (HA-Barrier)

An epoxy-based repair composite with extended working life for metal repair.
Where to Buy
Description

A solvent-free, single-component epoxy coating, which cures in contact with hot surfaces and is designed to prevent or protect metal from corrosion under insulation (CUI). Belzona 5851 (HA-Barrier) can be easily applied by brush and does not require any weighing or mixing.

This heat-activated material can be applied directly onto hot surfaces (70-150°C / 158-302°F) with minimal surface preparation, avoiding production downtime. Once cured, it provides outstanding corrosion protection. Also available is Belzona 1251 (HA-Barrier), a heat-activated epoxy repair composite that can be used in fill pitting and bond equipment among other applications.

  • In-situ application to live equipment operating at high temperature with minimal surface preparation
  • Single pack system, no weighing or mixing required
  • Reduced health and safety risks as it is solvent-free and no hot work is required
  • Fast cure  allowing equipment to be re-insulated with minimum delay
  • Excellent corrosion protection
  • Good chemical resistance against a wide range of chemicals
  • Excellent adhesion to (even to manually prepared) metals including stainless steel, carbon steel, aluminium, brass and copper
  • Thermally stable up to 150°C (302°F) in dry conditions
  • Prevention of corrosion under insulation (CUI)
  • Long-term corrosion protection of hot pipework and process equipment
  • In-situ external coating of process vessels during service operating at high temperature avoiding production downtime

8 KG

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.

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QUESTIONS & ANSWERS

Belzona’s high-temperature epoxies can withstand extreme temperatures. For example, the heat-activated material, Belzona 5851 (HA-Barrier) can be applied directly onto hot surfaces (70-150°C / 158-302°F) with minimal surface preparation, avoiding production downtime. Once cured, it provides outstanding corrosion protection.

How do you apply the heat-resistant epoxy, 5851 (HA-Barrier)? To apply the heat-resistant epoxy, Belzona 5851 (HA-Barrier) brush away any loose contamination and remove dirt and oil, and grease. Degrease with Belzona 9111 (Cleaner/Degreaser). Abrade the substrate, if necessary, to create the recommended profile. Belzona 5851 (HA-Barrier) is a single component product and so no mixing or measuring is required. Next, apply Belzona 5851 (HA-Barrier) directly onto the prepared surface with a short-bristled brush. As soon as possible after the application of the first coat, apply a further coat of Belzona 5851 (HA-Barrier). Lastly, allow the product to cure. Please see the Instructions for Use (IFU) for more information.
The cure time of the anti-corrosion coating, Belzona 5851 (HA-Barrier) is as follows:
Substrate temperature Touch dry/ light loading Full cure
158°F (70°C) 24 hours 7 days
176°F (80°C) 16 hours 5 days
194°F (90°C) 4 hours 3 days
212°F (100°C) 2 hours 2 days
248°F (120°C) 30 minutes 1 day
302°F (150°C) 10 minutes 16 hours
Please see the Instructions for Use (IFU) for more information. Belzona 5851