Belzona 4141 (Magma-Build)

Lightweight Repair System for Rebuilding Vertical and Overhead Surfaces

A lightweight epoxy repair composite for vertical and overhead concrete and stone repairs

Belzona 4141 (Magma-Build) is a two-component, lightweight repair composite for the rebuilding of damaged vertical and overhead concrete surfaces. This high-build system simplifies applications whilst providing long-term protection.

Crucially, it does not require the use of fixed shuttering or formwork. It can be applied up to 12.7cm (5 inches) thick on vertical surfaces and 7.6cm (3 inches) on overhead surfaces.

Additionally, as a solvent-free material, it is ideal for both internal and external masonry. It can be tinted to blend into existing substrates and upon curing, will not alter in appearance as it experiences no shrinkage, does not absorb water or chemicals and exhibits excellent carbonation resistance.

Key Benefits:

  • Can be tinted to colour match the original masonry surface
  • Can be feather-edged
  • Hi-build application in vertical and overhead locations
  • No shrinkage irrespective of the thickness applied
  • Reduces the requirement for shuttering
  • Excellent chemical resistance against a wide range of chemicals
  • Easy to mix and apply with no specialist tools and can be used in small quantities when required
  • Resistant to environmental attack
  • Reduced health and safety risks as it is solvent-free
  • Excellent bonding to all masonry surfaces including concrete, brick, marble

Applications for Belzona Belzona 4141 (Magma-Build) include:

  • Repair of spalled or damaged concrete areas and weathered stonework, particularly for vertical or overhead applications
  • Window sill, lintel and column repair
  • Repair of damaged overhead areas such as archways and bridges
  • Refurbishment of decorative moldings and other cosmetic repairs

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Oil & Gas

Belzona’s wide range of epoxy-based metal repair composites, high-temperature coatings and linings have been used in the Oil and Gas industry since the late 1970s.

Our materials are specifically designed to provide outstanding erosion and corrosion protection and chemical resistance for equipment operating offshore and onshore at various temperatures and pressures. Belzona offers cost-effective solutions, which reduce downtime and labour costs while eliminating the need for equipment replacement.