Nitomortar HB

A high-build epoxy mortar for the fast and permanent reinstatement of concrete, particularly where resistance to chemicals is required. Nitomortar HB can be used for small, localised patch repairs and, because of its lightweight nature, is ideally suited for use in vertical and overhead locations, and for emergency repairs where fast strength gain is important.


  • Lightweight formulation enabling high-build.
  • Reduces the need for formwork.
  • Early development of strength minimises disruption.
  • Highly resistant.
  • Extremely low permeability.

General information

Uniclass 2015

Pr_20_31_53_15 Concrete repair mortarsPrimary


C42/310 Repair mortar

C42/335 Proprietary concrete for small area repairs

Specification data - Concrete repair mortars

Product Reference

Nitomortar HB


High-build epoxy resin mortar

Standard product features


Nitomortar HB I a three-component, solvent-free epoxy resin system. The special lightweight filler is specifically designed to give excellent ‘hanging’ properties for vertical and overhead work. Supplied in pre-weighed quantities ready for on-site mixing and use.


  • Density (wet): 1160 kg/m³.
  • Compressive strength (BS 6319-2, at seven days): 40 N/mm².
  • Flexural strength (BS 6319-3, at seven days): 15 N/mm².
  • Tensile strength (BS 6319-7, at seven days): 7 N/mm².
  • Compressive modulus (ASTM C 469-65, at seven days): 4.5 kN/mm².


  • Pot life (20ºC): 45 minutes.
  • Pot life (35ºC): 20 minutes.
  • Initial hardness: 24 hours.
  • Full cure: 7 days.

Product Options


Prime dry substrate with Nitoprime 28. Steel reinforcement should be coated with Nitoprime Zincrich Plus.

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