Leak Sealing

Our process for leak-sealing employs a special high density hydro-insensitive resin which is injected through small 5/8″ holes drilled directly through the concrete or metal wall parallel with the crack or break that requires sealing . As the resin mixture expands, voids are firstly filled and a controlled mold pressure is exerted. The aggressive nature of the Poly-Mor resin expands, fills and seals cracks in the retaining structure from the outside, inwards.

Although our resins are hydro-insensitive our application is limited to environments where “fast moving” water is not a condition since our resins are also liquid in form.

The composite material quickly cures to a strong, stable and long-lasting seal. Our process is particularly adaptable to manhole rehabilitation where water or wastewater infiltration or exfiltration is of concern. Water infiltration adds significant costs in water treatment and exfiltration may cause ground water contamination.

Key Benefits

Commercial

Leak Sealing

Poly-Mor Canada is the industry leader in polyurethane foam solutions for large-scale commercial, industrial and infrastructure problems. Poly-Mor’s polyurethane foam injection is a fast, effective and minimally invasive method of repairing leaks in pipe joints. The hydro-insensitive and hydrophobic nature of our polyurethane foam stabilizes soils, displaces water, fills voids and seals joints and cracks. This is a cost-effective method to solve multiple issues common in water infrastructure projects in a single application. Our experienced personnel can attack the problem from both inside our outside the pipe, depending on the site conditions and accessibility.”

Applications

Industrial

Leak Sealing

Poly-Mor Canada’s polyurethane foam injection system produces a fast and effective way to repair a variety of issues that cause sanitary and stormwater pipes to leak. In one application, the polyurethane simultaneously fills voids, densifies soils, and seals leaking joints and cracks. The polyurethane can be injected from within the pipe or from the surface depending on accessibility and pipe diameter.

When polyurethane is injected in a vertical and horizontal injection pattern, a dense layer of polyurethane compacts and bonds the soil to prevent water seepage and soil loss. Additionally, polyurethane aggressively seeks out and fills voids and seals cavities, cracks, and crevices.

Applications

Infrastructure

Leak Sealing

Manhole Repair

Manholes often experience cracks, leaks and soil erosion. Poly-Mor Canada’s polyurethane foam injection is a no-excavation repair solution that can restore the manholes back to full functionality. Not only will our polyurethane foam seal joints against water ingress and egress, it will stabilize the base soils and fill voids – thus strengthening the support for all adjacent infrastructure such as roadways, sidewalks and buildings. As with all Poly-Mor Canada solutions, the process is quick, minimally-disruptive, and cost effective.”

Applications

Poly-Mor

This technology is applicable in the industrial, commercial, residential, public works and institutional markets where water leaks are a problem.

INTERNATIONAL AIRPORT – ANCHORAGE, ALASKA

A very interesting challenge was presented to POLY-MOR Canada Inc. when seeping ground water entered a fuel line valve box.  As the water table rose, the leak became more pronounced and a few inches of freestanding water was the result.  Although prior leak seals were attempted, no amount of mastic or Link-Seal could stop the water from entering the valve box.

There were numerous attempts at sealing the leaks from two separate pipe sleeves, where they crossed the concrete barriers that were buried beneath an airport tarmac.  The two inches of water was pumped from the valve box prior to undertaking the work, but upon arrival there was a steady leak developing.  An inch of freestanding water soon covered the concrete basin, and had to be pumped out once again.  As we injected our resin in the previous leak seal, water was forced out from the annular space as our resin expanded to fill the voids.  Additionally, some of the prior leak seal material was forced out from the expanding resin, and a seal was immediately formed.  The steady leak was immediately stopped, and no more water was present.

 

The time it took to actually inject and seal the leak took approximately thirty minutes, and only four injections were necessary to fill the annular space.  As we worked, the fuel lines were kept open and monitoring of the enclosed space ensured the safety of our crew and airport personnel.  Airport operations continued on as usual, while aircraft landed on the adjoining airstrip during POLY-MOR operations.  Leak sealing was extremely successful, and should further leaks develop, repair would be a simple process of injecting our special

Pipe leak in Airport - Injecting POLY-MOR resin
Pipe leak in Airport sealed - Foam filled space behind previous leak seal material
Poly-Mor

Epcor – Case Study

Construction of a water intake line beneath the North Saskatchewan River which after taking out the coffer dam to proceed with the next stage of construction they found six joints leaking some 150 – 160 gallons of water per minute. Poly-Mor was able to stops the leaking so the contractor could finish the job

Inside an Epcor Pipe
Poly-Mor
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