KHIA headerKnow-How in Action


Belzona® Repair Still In Place After Nine Years & Millions Of Passovers



General Industry (GIND)



Floor Problem Areas (FPA)


Customer Location:

Missouri Department of Transport - USA


Application Date:

August 1994


Application Situation:

Big pothole in busy concrete interstate highway.



Patching with asphalt is temporary, other products were not staying in place, causing safety concerns. A four hour timeframe is the longest allowed for lane shutdown.



Belzona® 4111 (Magma-Quartz)

Belzona® 4131 (Magma-Screed)





Application Method:

The application is carried out in accordance with a modified version of Belzona Know-How System Leaflet FPA-1.


Belzona Facts:

This nine-year-old application is on the busiest stretch of interstate in the state of Missouri - linking St. Louis with Kansas City. The ragged edges and spalled concrete were cut out. Belzona® 4131 was used to fill in the hole, topped off with 1/4”-inch of Belzona® 4111. The application area was then covered with concrete blankets and heated with a gas-fired portable heater. External heat was applied for 50 minutes at 180°F, allowing the lane to open less than four hours later. It’s still there today.


Photographs Description

  1. Final stages of surface preparation
  2. Belzona® 4131 down; ready for next phase
  3. Belzona® 4111 applied
  4. External heat apparatus to speed up the lane opening
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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