Fernox F4 Superconcentrate Leak Sealer - 290ml
Fernox Superconcentrate 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. For long term protection against corrosion and limescale it is recommended systems are cleansed using an appropriate Fernox Restorer and then protected with a Fernox Protector.
- Ideal for reducing pressure loss from sealed systems
- Seeks out and seals most weeps and leaks
- Saves time and money on draining down and repairing
- Does not cause blockages of pumps, air vents, etc.
- Compatible with all Fernox corrosion Protectors
- Easily and quickly added via one of the radiators
- Universal applicator included
- Patented application
- Ideal for pressurised systems and combination boilers
- Non-toxic, environmentally friendly