What Is Sentinel Leak Sealer?
Sentinel Leak Sealer is a liquid chemical treatment formulated to seal micro-leaks from within a heating system. It circulates with system water and targets leak points. Consequently, it forms a durable seal where water escapes.
Because it works internally, installers can treat systems without locating or exposing the leak. Therefore, it saves time and reduces disruption.
Why Heating System Leaks Occur
Over time, heating systems experience wear from pressure changes, corrosion, and temperature variation. These factors can create small leaks at joints or fittings. As a result, pressure drops and performance suffers.
By using Sentinel Leak Sealer, installers address leaks before they worsen. Furthermore, early treatment helps prevent costly damage.
How Leak Sealer Works
Once added, Sentinel Leak Sealer circulates throughout the heating system. When it reaches a leak point, it reacts with air and forms a flexible seal. Therefore, water loss stops while normal circulation continues.
The seal remains stable under operating conditions. Consequently, system pressure restores and remains consistent.
Key Features of Sentinel Leak Sealer
Leak Sealer seals leaks without draining or dismantling the system. It works during normal operation and delivers fast results. As a result, installers can treat systems efficiently.
The formulation remains compatible with other Sentinel treatments. In addition, it does not affect pumps, valves, or heat exchangers.
Applications and Suitable Uses
Micro-Leaks in Sealed Systems
Leak Sealer suits sealed central heating systems suffering from unexplained pressure loss. It targets small leaks effectively. Therefore, it restores system stability.
Hard-to-Reach Pipework and Components
The treatment works well where leaks occur under floors or behind walls. As a result, invasive repair work becomes unnecessary.
Benefits for Installers and Homeowners
Sentinel Leak Sealer helps installers resolve leak issues quickly. It reduces call-backs and avoids disruptive repairs. Consequently, service efficiency improves.
Homeowners benefit from restored pressure and continued heating performance. Furthermore, the system remains operational during treatment.
Next Working Day Delivery: Yes, we hold all our products in stock at our 7000 sq ft Nottingham warehouse and at our 3000 sq ft warehouse in Market Harborough and use DPD for a tracked next-day delivery.
Collection Available: You can always collect from our Norttinagham location and help yourself to a free tea and coffee









