Project Info

50 Alexander St - Ceiling Repairs

Green rock property management Limited
Areas Repaired Ceiling of underground garage
Repair Types Polyflex, Polyforce Plus
Issues Severely aged Expansion Joint caused leaks, which resulted in concrete and re-bar deterioration.

Project Description

Severely aged Expansion Joint caused leaks, which resulted in concrete and re-bar deterioration.

Expansion Joints

The repair of the Expansion Joints was done from a negative side by injection of PolyFlex.
The old Expansion Joints were removed and the Joint surfaces were cleaned.
A strip of fiberglass with injection nozzles was installed on the ceiling and PolyFlex was injected into the joint. PolyFlex is completely liquid when applied, which makes it ideal for this type of application. PolyFlex's increased adhesion to the concrete with the ability to stretch to 200% of its applied volume provides sustainable and long lasting results. PolyFlex is ideal for Expansion Joint repair and waterproofing.

Ceiling concrete repairs

The paint and delaminated concrete was removed from the ceiling and the concrete surface was cleaned. Polyforce Plus was applied as a patch material in all the areas in need of repair.
Polyforce Plus mixed with white pigment (for colouring) was applied as a final decorative quote to match the rest of the surface.

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
  • 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



  • Application of PolyFlex from the negative side reduces cost by 90% when compared to the traditional method of repair
  • 10 years of useful life
  • 0% water permeation
  • PolyFlex is able to expand and compress 200%
  • 200% expansion and compression does not affect adhesion or tensile strength of PolyFlex

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