Belzona 4181 (AHR Magma-Quartz)

An acid and heat resistant epoxy repair composite for concrete and stone repair, resurfacing and protection.

Belzona 4181 (AHR Magma-Quartz)

A 3-part epoxy repair composite designed for the repair, resurfacing and protection of concrete and stone subject to impact, abrasion, heat and chemical attack. This material provides outstanding acid and heat resistance and is ideally suited for horizontal surfaces, as well as vertical surfaces up to a thickness of 6mm (¼ inch.)              

Belzona 4181 (AHR Magma-Quartz) is a solvent-free repair composite which is supplied as a base, solidifier and separate aggregate, that when combined forms a trowelable consistency to rebuild damaged surfaces.

Key benefits:

  • High mechanical and impact strength
  • Provide outstanding long-term abrasion and heat resistance
  • Excellent chemical resistance particularly to inorganic acids
  • Easy to mix and apply with no specialist tools and can be used in small quantities when required
  • Application and cure at room temperature - no hot work involved
  • No shrinkage irrespective of the thickness applied
  • In-service acid cure develops maximum acid resistance
  • Post-cure develops maximium heat resistance
  • Downtime reduction due to its fast curing properties
  • Reduced health and safety risks as it is solvent-free
  • Excellent bonding to metallic and non-metallic surfaces including concrete, brick, marble, stone and many other rigid surfaces

Applications for BELZONA 4181 (AHR Magma-Quartz) include:

  • Repair and resurfacing  of areas such as chemical drains, channels, sumps, bund areas, transfer and holding areas
  • Rebuilding and protection of concrete flange faces
  • Grouting, bonding and shimming of equipment subject to heat and acid such as ovens, structural supports, tiles and pumps
Key technical data:
Working life at 25°C (77°F)  30 minutes
Time to pedestrian traffic at 25°C (77°F) cure 8 hours 
Recommended coverage rate (15kg unit) 1.05 sq.m (10.67 sq.ft)
Tensile Shear adhesion (ASTM D1002) 2,400 psi (16.55 MPa) steel, 600 psi (4.13 MPa) dry concrete *Cohesive failure of substrate
Compressive strength (ASTM D695) 9,150 psi (63.09 MPa) ambient cure
Temperature resistance 150°C (300°F) Dry
Bonds to Concrete, stone, brick, marble, steel and many other rigid surfaces
Typical applications Acid and heat resistant epoxy composite for concrete and stone repair, resurfacing and protection
Unit size 15kg, 25kg Pack sizes may vary locally. 
Availability* Global

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


More information:

For more information about Belzona 4181 (AHR Magma-Quartz) please 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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