Need a high-strength, permanent solution for bonding natural stone, precast concrete, and metal? Or for structurally repairing chips and voids in concrete and stone, without the risk of staining light-coloured materials? Megapoxy Megabond delivers.

Why this product exists

Megapoxy Megabond is formulated as a 100% solids, two-component epoxy adhesive engineered for demanding structural bonds and repairs. It achieves very high strength, permanent adhesion between various construction materials like natural stone, precast concrete, and metals. Crucially, its non-staining formulation protects delicate, light-coloured stones, while its resistance to shock and chemicals ensures lasting performance in harsh environments.

The numbers that matter

  • Compressive Strength (60 MPa): This indicates a cured strength superior to most concrete, making it ideal for structural concrete repairs and load-bearing bonds.
  • Tensile Bond Strength (10 MPa on steel, >3 MPa on concrete): These values confirm its ability to form robust, permanent bonds across diverse and often dissimilar construction materials, resisting significant pull-apart forces.
  • Work Time (45 minutes at 25°C): Provides a practical application window, allowing for careful placement and adjustment without rushing, especially critical for intricate stone work or large-scale concrete repairs.
  • Maximum Operating Temperature (80°C): Ensures the adhesive maintains its structural integrity and performance even under elevated temperature conditions, crucial for external or industrial applications.

What it's like to use

Megabond features a simple 1:1 mix ratio by volume, blending easily into an off-white, creamy consistency. This texture allows for smooth application and easy spreading with a notched trowel. For optimal performance, ensure all surfaces are thoroughly clean and prepared; concrete requires mechanical abrasion or acid etching, and metals need grit blasting or mechanical abrasion to a bright finish. Proper mixing of Part A and Part B is critical for full cure and strength. For cleaning mixing implements and tools, use Megapoxy Thinners. Megabond can also be coloured using Megapoxy Pigment Paste Additive to match the substrate.

Where this product excels

  • Stone Masonry: For precise miter joints, bonding natural stone panels, or repairing chips and voids in delicate, light-coloured marbles without any risk of staining.
  • Civil Construction: Structurally repairing spalled concrete floors, stairs, and columns, or bonding precast concrete elements where high compressive and tensile strengths are essential.
  • Tiling & Cladding: Securely bonding large format tiles, ceramics, and stone to masonry surfaces, cement sheet, plasterboard, and timber, ensuring permanent adhesion in both interior and exterior settings.

Choose this when

  • When a permanent, high-strength structural bond is required between dissimilar materials like stone, concrete, and metal.
  • For repairing chips, voids, or damage in concrete and natural stone articles that require superior compressive and bond strength.
  • Working with light-coloured natural stone or marble where preventing staining is critical.
  • The application demands excellent chemical resistance and high shock absorption.

Don't use this when

  • Not for: Flexible joints or applications requiring significant movement capability; this is a rigid structural adhesive.
  • Not for: Bonding to unprepared or coated surfaces without prior removal of existing coatings and proper substrate preparation, as this will compromise bond strength.
  • Not for: Low-viscosity crack injection; Megapoxy Megabond has a creamy texture unsuitable for fine crack penetration.

Choosing the right Megapoxy for your project

When your project demands permanent, high-strength structural bonding and repair for materials like natural stone, precast concrete, and metal, Megapoxy Megabond delivers superior performance and chemical resistance. Unlike general-purpose epoxies like Megapoxy E Epoxy, Megabond is specifically formulated to be non-staining for delicate, light-coloured stone. This critical differentiator means you achieve robust, long-lasting bonds without the risk of discolouration that can occur with alternative, less specialised adhesives or fillers.