Project Info

25 St. Mary’s St. - Staircase

Areas Repaired Staircase
Repair Types Basalt Coating, Fibreglass Coating, Patching, Surface Coating (Epoxy)
Issues Concrete severly delaminated

Project Description

Concrete Stairs Repair

Severely deteriorated concrete on stairs was in a near of "beyond repair" state. A regular repair method would not be applicable as the patch thickness needed to be less than a quarter of an inch.


The delaminated concrete was removed. The Concrete surfaces were cleaned..
Polyforce Plus was mixed with Basalt to a paste like consistency. The acquired patch mass was applied to all cavities to restore the geometry of stairs.
The entire stairs surfaces were treated with a clear coat of Polyforce Plus. This application provides weather proofing and increased resistance to mechanical intrusions.

Technical Details


In accordance with third-party testing, the repaired surfaces are rated to the following:

Polyforce Plus

  • 25 years of useful life
  • 0% water permeation
  • Polyforce Plus is rated to expand and contract with concrete
  • The entire surface and volume of the slab is "monolithic"
  • Compressive strength of 85 MPa
  • Polyforce Plus mixed with Basalt reaches a compressive strength of 150 MPa
  • Adhesive strength of 1.85 MPa (original concrete has only 1.2 MPa of a tensile strength, so the bond is stronger than the concrete itself)
  • Repair is 60% cost of a traditional repair

Customer Service
Workmenship / Quality
Repair Capital Cost Saving
Issue Remediation
Overall Rating

About Us

Polyforce International Inc.

Our Contacts

22 Jutland Rd, Unit C
Toronto, Ontario, M8Z 2G9

Phone: (647) 479-4069
US/Canada Toll Free: 1-855-561-4416