FosfoKal descalers: complete guide for professional use
How to use FosfoKal professionally to remove limescale, oxides and mineral residues from stainless steel and equipment.
Why choose FosfoKal
FosfoKal, from the Lüster EcoFactory line, is a strong acid descaler designed to remove limescale, oxides and mineral residues from stainless steel, equipment and circuits. Its technical positioning is clear: a strong acid hygienising descaler for professional applications where mineral build-up affects cleanliness and performance.
Its practical advantage is that it combines descaling and hygienising action in a single step. This helps streamline weekly maintenance routines, especially where mineral deposits have become heavily layered.
Step-by-step method
For consistent results, dilute the concentrate according to the table, taking local water hardness into account. Once prepared, apply the solution to the surface with a cloth, sponge or professional tool, covering the affected area evenly.
After application, leave FosfoKal to act for 5 to 15 minutes. Then remove with a clean cloth or rinse with water, depending on the surface and the operating method in use.
Dilutions and practical yield
For ordinary scale build-up, the recommended dilution is 100 ml of product per 1 litre of water, giving a final yield of 10 litres of ready-to-use solution. This concentration suits routine maintenance on surfaces and equipment with standard mineral deposits.
For heavier or more layered deposits, the intense dilution is 200 ml per 1 litre of water, giving a final yield of 5 litres. FosfoKal is safe on stainless steel at the indicated dilutions, which is a key point in professional environments.
Laboratory advice
In professional descaling work, correct concentration and contact time are more important than relying on mechanical action alone. On heavy limescale, it is better to use the appropriate dilution and allow the product enough time to work.
The recommended frequency for FosfoKal is weekly. Regular use helps keep limescale and mineral residues under control, reducing the need for more demanding restoration work on stainless steel surfaces, equipment and circuits.
FAQ
What surfaces is FosfoKal suitable for?
FosfoKal is intended for limescale, oxides and mineral residues on stainless steel, equipment and circuits. It is safe on stainless steel at the indicated dilutions.
How long should FosfoKal be left to work?
The recommended contact time is 5 to 15 minutes. The exact time depends on the level of build-up and the operating method.
How often should FosfoKal be used?
The recommended frequency is weekly. Regular use helps control the build-up of limescale and mineral residues before they become heavily layered.

