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Home Magnetic Filters & Additives Additives Fernox Leak Sealer F4 500ml
1/2" Big Nut Radiator Valve €10.00
Back to products
Combiphos Refill Pack €40.00
Fernox

Fernox Leak Sealer F4 500ml

€30.00

  • Ideal for reducing pressure loss from sealed systems
  • Seeks out and seals inaccessible, internal microscopic leaks fast
  • Saves time and money on draining down the system and repair costs
  • Safe to use – does not cause blockages in pipework or vulnerable boiler components such as pumps, air vents and heat exchangers
  • Designed to be left permanently in the system – compatible with all metals and materials, including aluminium
  • One 500ml recyclable bottle treats up to 130 litres of system water (16 radiators) and the equivalent of 250m2 of underfloor systems.

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  • Description
  • Additional information
Description

Leak Sealer F4 is an 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.

Additional information
Brand

Fernox

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In 1964 P.J. Nolan started a heating and plumbing contracting business and within a few short years he had established a heating and plumbing supplies shop adjacent to his family home. As an independently owned family-run business our philosophy is and always will be based on the simple but often forgotten principles of good service, reliability, customer care and fair pricing.

Heating & Plumbing Store Monday - Friday

  • 8:00 am – 5:30 pm

Saturday:

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  • Phone: +353 59 9131764
  • Email: sales@pjnolan.ie
  • Chapelstown, Tullow Rd, Carlow, R93 K8N1

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