PreciClean P20

Amsonic PreciClean P20 is an acidic neutraliser, applied in special washing machines after the cleaning steps. The product effectively removes alkaline residues from washing goods.



Amsonic PreciClean P20 can be used as a precleaner to remove acid soluble de-posits from instruments and materials, as for example lime residues. Moreover, it removes lime deposits in washing machines and washing conveyors. Amsonic PreciClean P20 is free of surfactants, easy to rinse off and acts bactericidal in chemical/thermal procedures.

Attention must be paid to the acid resistance of the items to be rinsed, the machine, the drain pipes and any waste water raising systems which might be present. Pipes made of cement asbestos and cast iron are not suitable.


Ingredients according to recommendation 89/542/EEC for detergents: inorganic phosphorus (from phosphoric acid)


The recommended concentration for use is:

As neutraliser
Dosage: 0.1-0.2%
Temperature: 20-50°C
Exposure time: 1-2 min. 

As acid detergent
Dosage: 0.2-0.3%
Temperature: 50-70°C
Exposure time: 3-5 min.


The cleaning goods, the machine and the drain pipes have to be resistant to acid. The use of demineralised water considerably improves the cleaning properties and reduces the consumption of the cleaning agent.

We recommend to:

  • prevent rinsing shades
  • use deionised water for the final rinsing to avoid the building up of silicate layers on the cleaning goods and the inner walls of the machine


PreciClean P20 (362 KB)