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Fernox F4 500ml Leak Sealer 56603

(Code: 6603020)

Fernox 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.

£ 20.95
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  1. Description of the article Fernox F4 500ml Leak Sealer 56603

    Leak Sealer F4 is suitable to be used throughout a central heating system to seal small leaks and weeps which may cause pressure loss and boiler breakdown. Once dispersed within the system it will be effective 1-24 hours after application. The unique sealing efficiency of this proven product has been specifically developed to prevent blockages or restrictions within the boiler or vulnerable system components such as pumps and safety devices.
  2. Ideal for reducing pressure loss from sealed systems
    ✔ Seals most weep and small inaccessible leaks
    ✔ Saves time and money on draining down and repairing
    ✔ Does not cause blockages of the pump, air vents etc
    ✔ Compatible with all metals and materials commonly used in central heating systems
  4. To find out more details about the product. Have a look on the following instructions.