BELZONA 4131 (Magma-Screed)

An epoxy repair composite for the resurfacing and protection of concrete and stone areas

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A non-porous, 2-part epoxy repair composite designed for resurfacing and protecting large areas of concrete, stone and many other surfaces. This solvent-free material provides excellent chemical and abrasion resistance and protection from impact and environmental attack.

Far stronger than concrete, Belzona 4131 (Magma-Screed) can be used as a repair material or to provide an extra strong top layer to existing concrete areas.  In addition, it meets the USDA requirements for incidental food contact as it offers a safe and hygienic surface.

This simple to apply material is easy to mix and can be applied by trowel without the need for specialist tools.

Key benefits:

  • Minimised downtime due to its fast cure time compared with concrete
  • Reduced health and safety risks as it is solvent-free
  • USDA approved to provide a safe and hygienic surface with no tainting of foodstuffs
  • No shrinkage irrespective of the thickness applied
  • Can be feather-edged
  • Outstanding long-term abrasion resistance
  • Resistant to environmental attack
  • Excellent chemical resistance against a wide range of chemicals
  • Application and cure at room temperature – no hot work involved
  • Excellent bonding to metallic and non-metallic surfaces including concrete, brick, marble and stone

Applications for Belzona 4131 (Magma-Screed) include:

  • Resurfacing of areas such as floors, ramps, stairways, walk ways and loading bays
  • Refurbishment of storage tank walls and containment areas

Key technical data:

Working life at 25°C (77°F)30 minutes
Time to pedestrian traffic at 25°C (77°F) cure6 hours
Recommended coverage rate (20kg unit)1.4 sq.m (15 sq.ft)
Pull off adhesion (ASTM D4541)1,400 psi (9.65 MPa) dry concrete, 810 psi (5.57 MPa) wet concrete
Compressive strength (ASTM D695)13,000 psi (9.63 MPa) ambient cure
Temperature resistance60°C (140°F) immersed, 149°C (300°F) dry
Bonds toConcrete, stone, brick, marble, steel and many more
Typical applicationsEpoxy composite for concrete and stone resurfacing and protection
Unit size20kg, 25kg. Pack sizes may vary locally.


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