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Pickling and Passivation

Permanent corrosion resistance

Durable corrosion resistance requires the right material selection as well as proper design and processing. To keep stainless steel permanently resistant to corrosion, stainless steel components must be pickled and passivated after processing.

Immersion pickling and spray pickling at our factory

The corrosion resistance of stainless steels is based on the so-called "passive" oxide layer on the stainless steel. When processing stainless steel, this passive layer is damaged and stainless steel can rust in this condition. In order for the passive layer to form again, stainless steel must be pickled and passivated after processing.

For this process, we have built a large pickling and passivation plant with its own sewage and neutralization plant. The waste water is thus cleaned, passed into the sewage system with a neutral PH value and the contaminated sludge disposed of in an environmentally sound manner.All components manufactured by IST are pickled and passivated after their processing so that we can guarantee the permanent corrosion resistance of our products.

Immersion Pickling L/B/H 6600/1150/1000 mm
Spray Pickling  L/B/H 20000/5000/4500 mm

Contact us:
Phone +41 (0) 33 334 26 00


Stainless Steel

Symbol for hygiene and high-quality material

"Only the consistently high chemical and mechanical resistance of stainless steel ensures consistently reliable quality, hygiene and aesthetics."
Stainless Steel Information Point (ISER)

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The brand IST stands for the highest quality

“Swiss Made” stands for top quality, precision, reliability and exclusivity. Since 1975 we have committed ourself to bringing this concept to the market through the production high quality systems. In order to ensure that Swiss standards of quality are met in every sense, IST‘s products are exclusively produced by our qualified staff at our location in Switzerland. More about us 

Stainless steel components are easy to clean, virtually maintenance free and durable.

Stainless steel is strong, corrosion resistant, wear resistant and resilient.

Stainless steel is aesthetically pleasing.

Stainless steel has a better energy and resource use balance and is 100% recyclable

Stainless steel ensures the highest hygienic standards.

Technically and economically, stainless steel is probably the best solution.