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Fernox Leak Sealer F4 Express 400ml

SKU: HTF62422
IDHTF62422 Heating > Central Heating Treatment > Central Heating Chemicals > Fernox Leak Sealer F4 Express 400ml
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£ 20
.39  inc VAT

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Product information

Fernox Leak Sealer F4 Express 400ml 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. A leak can be quickly and efficiently sealed, without the need for a complete system drain down. The Fernox Express range uses Barrier Pressure Pack technology and compressed air propellent to expel the product so the entire range is non-flammable. The propellent (compressed air) is not mixed with the active product so there is no risk of air ingress into the system which could accelerate future risk of corrosion.

Features & benefits
  • Quick and convenient – doses in 30 seconds - no need to drain down the system
  • Seeks out and seals inaccessible, internal microscopic leaks fast
  • 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 repairin
Product Name Fernox Leak Sealer F4 Express 400ml
Brand Fernox
Manufacturer Name Fernox Ltd
Manufacturer Part Number 62422
EAN 5014551624221
Commercial Or Domestic Use Both  
Range Central Heating Controls  
Colour White  
Application Interior  
Pack Quantity 1  
Country Of Origin United Kingdom  
Volume 400  l