Global Leak Sealing Specialists in Transformers, Circuit Breakers, and other Medium to High Voltage Equipment
Global Leak Sealing Specialists
Transformers, Circuit Breakers, and other Medium to High Voltage Equipment
Discover the APPLIED LEAK SEAL Method
We approach repairs utilizing Applied Leak Seal’s specialty O-ring compatible leak sealant along with the BEST methodology.

Why Do Leaks Occur?
Age |
Load Fluctuation |
Vibration |
Human Factors |
Environment |
Stress |
Assembly |
Temperature Changes |
Negative Effects of Leaks
DGA |
Safety |
Remediation |
Moisture Ingress |
Environmental |
Environmental Fines |
Air Ingress |
Asset Reliability |
Why Do Leaks Occur?
Age |
Load Fluctuation |
Vibration |
Human Factors |
Environment |
Stress |
Assembly |
Temperature Changes |
Negative Effects of Leaks
DGA |
Safety |
Remediation |
Moisture Ingress |
Environmental |
Environmental Fines |
Air Ingress |
Asset Reliability |

Custom Enclosure Clamp
Prior to the repair, a site visit takes place to obtain a measurement of the leaking apparatus. A custom PVC or Aluminum enclosure or flange-to-flange clamp is produced, installed, and the cavity filled with our sealant.

Injectable Cap Nuts/Washers
Designed to replace the existing nuts
and allow for them to be injected with sealant.

Drill & Inject (D&I)
The gasket grove is drilled and injected with our sealant followed by placement of brass plugs.
Our sealant is a rubber based compound that can easily be removed within minutes by our clients’ technicians.

Transformer Repairs
Repairs most leaks by hydraulically injecting sealant, without draining or depressurizing equipment.
Includes Repairs to:
- Radiator Isolation Valve Flanges and Stems
- Electrical Bushing Leaks
- Welds and Threaded Fittings
- Access Cover Plates and Tap Changers

Circuit Breaker Repairs
Addresses all sources of SF6 gas leaks. Our custom solution is the most cost effective for long term solutions.
Includes Repairs to:
- SF6 Gas Circuit Breaker and Switch Leak Repairs at porcelain and base mounting flange or bushing end cap
- Oil Circuit Breaker Leak Repair, similar to transformer oil leaks

3D Scanner Technology
Detects SF6 Leaks by measuring the area around the leak to determine a precise sealant solution
We come equipped with our own 3D scanner for efficient and versatile handheld device is easy to operate and provides precise, detailed measurements, even in demanding conditions and on complex surfaces.
Cost-Effective Leak Solutions for Transformers and Breakers
SF6 Gas Leak Detections via infrared 3D laser-scanning unit
LEAK SEAL APPLICATIONS
We approach the repair utilizing Applied Leak Seal’s
specialty O-ring compatible leak sealant along with the BEST methodology.

Bushings / Various Flanges and Threaded Connections

Cover Plate / Access Covers

Pressure, Temperature, and Level Gauges

Drain and Sample Valves

Tap Changer and Compartment Flanges

Tubing Connections
Tubing Clamps

Radiator Fins, Headers and Valves

Radiator Isolation Valve Flanges & Packing Glands

CT Boards or Junction Blocks

SF6 / Oil Breakers

Welds

Pump Flanges
“For the manway cover repair, it held up great. When we drained the transformer we were able to replace the O-rings and make repairs to the door, but it held up great until then.”
Proudly Headquartered in both Canada and the United States



United States
4023 Kennett Pike, #50426
Wilmington, Delaware, 19807

Canada
Suite #513 92 Caplan Ave
Barrie, Ontario, L4N 9J2
Personnel and Services
across North America
Contact Us for a Quote
Leak Seal Protecton
Cover Plate / Access
Transformer Repairs
Circuit Breaker Repairs
3D Scanner Technology
SF6 Gas Leak Protection
Flapper Valve Packing and Flanges
Pressure, Temperature, and Level Gauges
Drain and Sample Valves
Tap Changer and Compartment Flanges
Bushings / Various Flanges and Threaded Connections
Tubing Connections
Radiator Fins, Headers and Valves
Pump Flanges
CT Boards or Junction Blocks
SF6 / Oil Breakers
Welds
Flapper Valve Packing and Flanges
Certified Contractor
