Leak Sealer F4 is a internal leak sealer developed for use throughout a central heating system to seal small, inaccessible leaks and weeps which may cause pressure loss and boiler breakdown
- Once dispersed within the system, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole
- Effective within 1-24 hours after application, the unique sealing efficiency of this market-leading water treatment chemical has been proven to prevent blockages or restrictions within the boiler or vulnerable system components such as pumps and safety devices
- Seeks out and seals inaccessible, internal microscopic leaks fast
- Quick and convenient – doses in 30 seconds - no need to drain down the system
- Safe to use - does not cause blockages in pipework or vulnerable boiler components such as pumps, air vents and heat exchangers
- Non-toxic, environmentally friendly formulation, compressed air propellant and 100% recyclable can
- Saves time and money on draining down and repairing
- Add via a radiator, filling loop or TF1 System Filter - all adapters supplied
