Pickling agent for stainless steel and welds
Acidic pickling agent for stainless steel: removes weld oxides, scale and oxidation, restoring the metal's passive layer. Also available as a gel for vertical surfaces.
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.
- Restores stainless steel passivation
- Clinging gel version for vertical welds
- Controlled contact time: 10–30 min
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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
10–30 min
Frequency of use
Monthly / depending on soil
Dilution table
| Use | Dilution | Practical dose | Yield per 1 L/kg |
|---|---|---|---|
| Routine maintenance | 1:5 | 200 ml / 1 L | 5 L |
| Heavy soil | 1:3 | 330 ml / 1 L | 3 L |
| Undiluted / spot stains | Puro (gel) | su saldature | — |
Purchase
Choose the size and order
Prices incl. VAT. Free shipping above the threshold shown at checkout.
Size
CHF 29.90
CHF 29.90 / 5 kg · VAT included
(CHF 5.98 / kg)
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