Fernox F4 Central Heating Leak Sealer - 500ml
Product code: 227668
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Fernox F4 Central Heating Leak Sealer is an internal leak sealer designed to treat small, inaccessible leaks and weeps within a central heating system that can cause pressure loss. Once added to the system, the product finds the area of oxygen ingress and forms a polymer to seal the pinhole leak. It is effective within 1 to 24 hours of application and doesn't cause blockages in the boiler, pumps, or other system components. A leak can be quickly and efficiently sealed without the need for a complete system drain-down.
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Standard Delivery - From £4
Click & Collect from store in as little as 15 minutes - FREE
Product details
- Depth: 52 mm
- Height: 182 mm
- Width: 88 mm
- Weight: 0.60 kg
- Size: 500 ml
- Type: Leak Sealers
- Manufacturer Model No: 56603
- Country Origin: United Kingdom
- Brand Name: Fernox
- Made To Order: N
Features & benefits
- Suitable for use with central heating systems, including underfloor heating
- One bottle treats up to 130 litres system (16 radiators), or 250 sqm of underfloor heating
- Helps in reducing pressure loss from sealed systems
- Seeks out and seals inaccessible, internal microscopic leaks fast
- Seals small pinhole leaks and weeps within systems
- Compatible with all common metals, including aluminium
- Starts to work within 1 to 24 hours after application