MasterEmaco N 425: Non-sag concrete repair mortar with integral corrosion inhibitor for vertical and overhead applications

Formerly: Gel Patch


How does MasterEmaco N 425 work?

MasterEmaco N 425 is a one-component fast-setting polymer modified portland cement-based repair mortar for vertical and overhead concrete and masonry surfaces.

Recommended uses:

  • Interior and exterior
  • Vertical and overhead
  • Above and below grade
  • Spalls or holes in concrete
  • Deteriorated edges

What are the unique features of MasterEmaco N 425?

  • Non-sag consistency able to be placed in 2" (51 mm) thick lifts
  • Readily sculpted, shaved, and finished to match existing substrate
  • Very low chloride permeability and an integral corrosion inhibitor protects reinforcing steel
  • Only requires the addition of potable water

What are the benefits of MasterEmaco N 425?

  • Low shrinkage produces stable, durable bond
  • Lightweight microscopic beads improve vertical and overhead workability
  • Polymer modification improves adhesion and provides increased freeze/thaw stability

US / Canada Product Information

Data Guide

Date Guide (French)

Data Guide (Spanish)

Certification Letter

Guide Spec

Guide Spec

LEED Letter

Safety Data Sheets