Belzona 1251 (HA-Metal)

A heat-activated metal repair composite for in-situ repair and protection of hot metal surfaces with minimal surface preparation.

Belzona 1251 (HA-Metal)

A durable, single component metal repair composite based on a silicon alloy blended with a heat-activated epoxy resin. Designed to repair and protect metal surfaces suffering from Corrosion under Insulation (CUI), Belzona 1251 (HA-Metal) can be easily applied by spatula, applicator or brush.

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, this solvent-free repair composite provides outstanding corrosion protection.

Belzona 1251 (HA-Metal) is ideally suited to be over coated with Belzona 5851 (HA-Barrier) to ensure long-lasting performance.

Key benefits:

  • In-situ application to live equipment operating at high temperature with minimal surface preparation
  • Multi-purpose durable metal repair composite
  • Single pack system, no weighing or mixing required
  • Reduced health and safety risks as it is solvent-free
  • Fast cure allowing equipment to be re-insulated with minimum delay
  • Excellent corrosion protection
  • Impact and abrasion resistance
  • Good chemical resistance against a wide range of chemicals
  • Excellent adhesion to metals including stainless steel, carbon steel, aluminium, brass and copper
  • Does not corrode

Applications for Belzona 1251 (HA-Metal) include:

  • Repair and prevention of Corrosion under Insulation (CUI)
  • Resurface of pitted metal surfaces
  • Repair of thin-wall defects
  • Bonding of doubler plates
  • Leak sealing of pipework

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


More information:

For more information about Belzona 1251 (HA-Metal) contact us or find your local distributor.

You can apply to join Belzona Connect to access additional information including SDS and instructions for use.

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