FosfoKal
Strong acidic descaling sanitizer
ready-to-use solution
available sizes
contact time
The problem
What happens every day without the right product
Oxides and dull welds
Stainless steel spoiled by oxidation and weld marks loses value on the finished part.
Rust to remove
Rust spots on metal parts need targeted chemistry, not abrasives.
Uneven finish
Mechanical cleaning leaves scratches and patchy areas on metal.
The solution
Controlled chemical pickling
The pickling formula removes oxides and scale chemically: clean, uniform metal surface, ready for passivation or coating.
- Pickling and sanitizing in a single step
- Effective even on heavily layered limescale
- Safe on stainless steel at indicated dilutions
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Instructions
How to use it, in 3 moves
- 1
Dilute the concentrate according to the table, respecting local water hardness.
- 2
Apply to the surface with a cloth, sponge or professional tool.
- 3
Leave to act for the indicated contact time.
- 4
Wipe off with a clean cloth or rinse with water.
Dwell / contact time
5–15 min
Frequency of use
Weekly
Dilution table
| Use | Dilution | Practical dose | Yield per 1 L/kg |
|---|---|---|---|
| Routine maintenance | 1:10 | 100 ml / 1 L | 10 L |
| Heavy soil | 1:5 | 200 ml / 1 L | 5 L |
Purchase
Choose the size and order
Prices incl. VAT. Free shipping above the threshold shown at checkout.
CHF 16.10
CHF 16.10 / 750 ml · VAT included
(CHF 21.47 / L)
Secure payment: Card · TWINT · Apple Pay · Google Pay
Available sizes
Official 4F Services data sheets in Italian where available; other documents are generated from the catalogue pending the official versions.
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Delivery across Switzerland · Secure payment · Technical and safety data sheets included