Cooling
Water cools the burning material below its ignition temperature and removes the heat that sustains the chain reaction of combustion.
fx51 technology
One agent.
Every class of fire.
The fx51 agent is a water-based liquid extinguishing medium. In a single step it cools the fuel, separates oxygen and interrupts the chemical reaction of combustion.
Ecology
Water + chemical additives. Biodegradable, free of PFAS/PFOA, neutral pH.
Firetech fx51 is one of the most environmentally friendly extinguishing solutions on the market — with no compromise in extinguishing performance.
Water-based, biodegradable
The extinguishing medium is water-based and biodegradable — among the most environmentally friendly extinguishing solutions available on the market.
Free of PFAS/PFOA, pH-neutral, non-toxic
Unlike traditional fire extinguishers, it contains no harmful PFAS/PFOA substances, is pH-neutral and non-toxic — minimising the impact on aquatic ecosystems and the surrounding environment.
No dust or chemical residue
After deployment, no dusty residue or chemical deposits remain, significantly reducing secondary damage to equipment and the space.
Principle
Four mechanisms at once.
Conventional extinguishers use one or two extinguishing mechanisms. fx51 combines all four — which is why it handles classes that other agents cover only partially.
Oxygen separation
A layer of the fx51 agent forms a film on the surface of the flammable material, cutting off the oxygen supply to the fuel.
Interruption of the chemical reaction
Additives in the agent break down free radicals in the flame, stopping chain oxidation even with combustible metals and oils.
Stabilisation of lithium-ion batteries
The agent lowers the cell temperature below the thermal-runaway threshold and prevents re-ignition — critical in stores of e-bikes, EVs and backup systems.
Coverage
Seven classes. Seven coverages.
fx51 meets the extinguishing criteria for all commonly classified fire classes, including categories where ordinary agents fail or make the situation worse.
- A
Solid combustible materials
wood, paper, textiles, rubber, plastics
- B
Flammable liquids
petrol, diesel, oils, solvents, alcohol
- C
Flammable gases
methane, propane, hydrogen
- D
Combustible metals
magnesium, powdered aluminium, sodium
- E
Live fires
switchboards, servers, battery systems
- F
Cooking oils and fats
deep fryers, grills, professional kitchens
- Li
Lithium-ion cells
laptops, e-bikes, car batteries, energy storage
Comparison
Why one device instead of four.
Powder extinguishers
Unsuitable for cooking oils (class F) and Li-ion batteries. They contaminate the space with a fine powder that damages electronics.
CO₂ extinguishers
Evaporate quickly without cooling the fuel. High risk of re-ignition with classes A and F.
Foam extinguishers
Conductive — unsuitable for electrical installations. They contain PFAS, which are regulated in the EU.
Firetech fx51
The agent covers A, B, C, D, F, electrical installations and Li-ion. One type of device, one training course, one stockroom.