London, Kent, and the South East of England.
Delivering to anywhere in England, Scotland, Wales, Northern Ireland, (including Highlands & Islands)
Fernox super concentrate F4 leak sealer
FUNCTIONALITIES : Internal Leak Sealer
Ideal for reducing pressure loss from sealed systems
Seals most weeps and small inaccessible leaks
Saves time and money on draining down and repairing
Does not cause blockages of pump, air vents etc.
Compatible with all metals and materials commonly used in central heating systems
easy application no system drain down required
Product Uses
Fernox super concentrate leak Sealer F4 is used throughout domestic heating systems for sealing small
inaccessible leaks. Leak Sealer F4 works best in warm/hot circulating water and once evenly dispersed
will usually be effective within 1 - 24 hours. The sealing efficiency of Leak Sealer F4 has been
intentionally limited to prevent blockage of safety devices, pumps, etc.
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