How to clean rust stains from "stainless" steel

October 06, 2023 2 Comments

How to clean rust stains from "stainless" steel

Stainless steel comes in several grades of purity. All grades contain some iron, among other metals such as chromium, manganese, silicon, carbon and often nickel and molybdenum.

It is the inclusion of iron that gives rise to rust staining of the "stainless" steel. This happens when the protective layer of chromium oxide is damaged or there was not enough chromium included in the alloy.

There are over 150 grades of stainless steel and some are more prone to rust staining than others. Generally, the higher the chromium content, the less likely the steel will rust. However, given enough time, some rust will appear on most stainless steel

What makes stainless steel "stainless"?

When the chromium in stainless steel is exposed to oxygen in the atmosphere it forms a thin and invisible layer of "chromium oxide". It is this invisible layer, which covers the entire surface, gives stainless steel its ability to resist stains and rust. But if this layer is damaged, rust will form on the surface at the location of the damage.

How to use Benz Oxy Cleanze rust removal gel to clean rust stains from stainless steel

The before and after photos (below) are of stainless steel handrails and bollards that were covered with rust stains.

This may have been caused by contamination from mild steel during fabrication, contamination during use, or by using a low grade of stainless steel.

Application is simple: We brushed on Benz Oxy Cleanze and left it to work for 2 hours at 4 ℃. We lightly rubbed the surface with a rag and then rinsed.

Quick tip: Sometimes, to be fully effective, Oxy Cleanze may require leaving longer and may require a second application.

Remove rust oxidation from stainless steel with Benz OxyCleanze rust & oxidation removal gel Remove rust oxidation from stainless steel with Benz OxyCleanze rust & oxidation remover gel



Remove rust oxidation from stainless steel with OxyCleanze rust & oxidation remover gel Remove rust oxidation from stainless steel with OxyCleanze rust & oxidation removal gel

We hope this information is helpful and sincerely wish you great success in your soft washing business,

Benz Team

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GB (England, Scotland, Wales)

Phone: 0800 70 74 222 


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PS: Click here to set up your "Clean & Maintain" programme
. After completing an initial soft wash treatment, put your customer on a "Clean & Maintain" ongoing maintenance programme. Your customers will enjoy a permanently clean property and you will enjoy a steady stream of repeat business.

This is clearly a win-win arrangement for you and your customers.


Click here to explore the extensive range of Benz softwash cleaning chemicals & equipment

Benz Softwash Bio Cleanze DDAC biocide & Benz Softwash Lightning Cleanze SH sodium hypochlorite biocide

2 Responses


February 22, 2018

Hi Jack – Benz Oxy Cleanze is designed to remove rust stains to this would be my first choice. As always treat a small area first, with your customer’s permission, and ensure your customer is happy with the results before treating the whole area.

Jack Charters
Jack Charters

February 20, 2018

The client has asked me if there’s any product what would take rust out of concrete they have put down reinforced steel down on concrete and it is stained the concrete what do you recommend

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