Stemming and Sealing High Voltage Transformer Oil Leak
Customer was looking for a solution to stem and seal oil leakages from flanges and under the high voltage bushing pockets.
CASE
Permanent Leak Repair on Aging Lead and Oakum Pipe Joint
Problem
During the refurbishment of an old piping system within a commercial building, the customer discovered an active leak at a lead and oakum joint. These joints, common in older plumbing systems, had degraded over time, compromising the seal and allowing water to escape.
Industry
Facilities Maintenance
Application Date
2025
Location
North Bay / Ontario / Canada
Equipment Application
VPF-Valves, Pipes and Fittings
Subtrate
Other
Product
Belzona 1984
Belzona 4141 (Magma-Build)
Belzona 4911 (Magma TX Conditioner)
Repair Stages
Application Situation
Due to the age of the system and the joint’s location, a full pipe replacement would have been costly and disruptive. The customer needed a reliable, long-lasting repair that could be done quickly without dismantling the existing pipework. They initially attempted to seal the leak with hydraulic cement, but the leak persisted, so a more robust solution was required.
Application Method
The failed hydraulic cement was first removed, and the area was cleaned and roughened using power tools to eliminate rust and create a suitable surface profile for bonding. Once the substrate was properly prepared, Belzona 4141 was applied to rebuild and level the surface around the joint. This created a solid and uniform base for the application of the Belzona Super Wrap II system, which was installed using three layers of reinforcing wrap to fully seal and strengthen the joint.
Belzona Facts
Replacing the pipe would have involved significant demolition, higher material and labor costs, and extended downtime. Instead, the Belzona solution offered a fast, non-invasive repair that avoided those disruptions. The application was completed on a Saturday morning, and the pipe was back in service by Sunday. The contractor was very pleased with how straightforward the system was to apply, especially compared to more complex or invasive alternatives. Belzona provided a durable, long-term repair with substantial time and cost savings.
Contact your nearest Belzona Consultant and schedule a free evaluation!
Other Cases
Concrete Stairs Saved from Further Dilapidation
Stairs was experiencing cracks along the railing pillar and was on the verge of falling apart.
Holes on Ship Deck Covered with Belzona
Several holes on a ship deck required patching before being sent out to the museum. Customer did not want to bond a plate to entire surface because of cost implications. Belzona 1111 was used to patch the holes individually after required surface cleaning procedure and coated afterwards.