Description

The Fernox F4 Leak Sealer Aerosol 400ml is an advanced internal leak sealer designed for use in central heating systems to address small, inaccessible leaks and weeps that can cause pressure loss and boiler breakdown. Upon dispersal within the system, the product locates the area of oxygen ingress and forms a polymer to seal pinholes. Effective within 1-24 hours, this market-leading water treatment prevents blockages or restrictions in the boiler and vulnerable system components. The product can be quickly and efficiently applied without needing a complete system drain down, thanks to the Fernox Express range’s Barrier Pressure Pack technology and compressed air propellant.

Features:

Seeks out and seals inaccessible, internal microscopic leaks quickly.
Quick and convenient application, dosing in 30 seconds without draining the system.
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 with a 100% recyclable can.
Saves time and money on draining down and repairing.
Can be added via a radiator, filling loop, or TF1 System Filter, with all adapters supplied.

Technical data:

Brand – Fernox
Range – F4
Product Type – Central Heating Leak Sealer Aerosol
Appearance – Viscous Liquid
Colour – White
Size – 400ml
Odour – Faint
pH – 5.0 To 7.0
SG – 1.0 At 20°C

Standards & Certifications:

Conforms to Regulation (EC) No. 1907/2006

Please note:

Fernox Leak Sealer F4 Express is classified as non-hazardous, but as with all chemicals, keep out of reach of children. Do not mix with other chemicals. Do not take internally. In case of contact with eyes or skin, rinse immediately with plenty of water.