Oct 27, 2025 · As the world’s first chemical water treatment company, the last six decades has seen Fernox consistently lead the way in the heating industry – from pioneering the use of …

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Fernox Antifreeze Protector Alphi-11 is a combined glycol antifreeze and inhibitor. Offering long-term protection against frost, internal corrosion and limescale in heating and chilled water

“Cleaning a central heating system using Fernox F3 Cleaner and protecting with Fernox F1 Protector can restore and maintain system efficiency, resulting in a gas saving of up to 15% …

Fernox Protector F1 gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. It is suitable for all types of boiler, radiators and …

Performance Suitable Fluids: Water Inhibited Glycol Solutions Fernox Chemical Range / System Additives Maximum Percentage of Glycol – 50% Maximum Operating Pressure: 145 PSI …

Physical Specification / Properties Fernox Leak Sealer F4 is a polymer emulsion. Colour: Off white Odour: Faint Form: Viscous liquid pH (conc.): 5.0 – 7.0 pH (in-use): 7.0 – 8.5 SG: 1.0 at …

Protector F1 is compatible with all other Fernox products and is suitable for use with all materials and metals used in central heating systems, including aluminium.

The Express Inhibitor Test provides a rapid on-site analysis of the concentration of all Fernox Protectors, and other molybdate based inhibitors, in central heating system

Fernox Antifreeze Protector Alphi-11 is a combined glycol antifreeze and inhibitor. Offering long-term protection against frost, internal corrosion and limescale in heating and chilled water …