Despite its name, stainless steel is not completely immune to rust. Corrosion can occur when the surface becomes contaminated by iron particles, exposed to chlorides, damaged during welding, or improperly cleaned.

Common causes include:

• Contact with carbon steel tools or particles
  
• Welding heat tint and surface contamination
  
• Saltwater or chloride exposure
  
• Inadequate passivation
  
• Poor maintenance or harsh environments
  

Proper cleaning, pickling, and passivation help restore the protective chromium oxide layer that gives stainless steel its corrosion resistance.

No use of water and no liquid discharge. Significant cost reduction through elimination of effluent management and reduction of shutdowns. Solution suitable for constrained environments such as the United Arab Emirates, Saudi Arabia, Qatar, Oman, Kuwait and remote industrial sites. Simple and quick application, suitable for vertical surfaces and localized interventions.
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✔ Welds and vertical surfaces → Gel or sprayable gel
✔ Tanks and internal piping systems → Liquid circulation or immersion process
✔ No access to water → Rinse-free process
✔ Visible oxidation → Pickling followed by passivation
✔ Already clean surface → Passivation only

Passivation is particularly recommended after welding work, pickling, sandblasting, bending, grinding, polishing, as well as after machining or metalworking operations.

It is also recommended for food-grade, pharmaceutical, and medical equipment, for oxygen service systems, and for installations exposed to corrosive environments.

Pickling is primarily used to remove contaminants, oxides, weld discoloration, and other impurities present on the surface of stainless steel. It deeply cleans the surface and prepares the metal for subsequent treatment steps. This is a more aggressive process that removes a thin surface layer in order to restore a clean and uniform finish.

Passivation, on the other hand, is performed to enhance the natural corrosion resistance of stainless steel. This treatment promotes the formation of a protective passive layer that stabilizes the surface and improves its resistance to corrosion. Unlike pickling, passivation is a gentler process focused mainly on protecting the metal rather than removing material.

In most cases, passivation is carried out after pickling to optimize the protection and durability of stainless steel.

Kemplus offers a complete range of industrial stainless steel passivation solutions, suitable for all configurations.

1. Passivation Gels (Vertical Surfaces) - Formulated to adhere to vertical surfaces without running. Ideal for stainless steel tanks, welded structures, installed equipment and localized interventions.

2. Sprayable gels - Uniform application on large surfaces or complex geometries.

3. Soaking liquids - For removable parts and workshop processing.

4. Circulation passivation solutions (CIP) - For pipes, closed systems and industrial networks.

5. Rinse-free passivation kit - Solution allowing passivation without water and without generation of liquid effluents.

A stainless steel pickling liquid is a chemical solution designed to remove:

• weld oxides,
• heat tint,
• ferrous contamination,
• and surface scale formed during welding or fabrication.
  

Unlike pickling gels, liquid pickling solutions can easily treat:

• piping systems,
  
• tanks,
• heat exchangers,
• internal surfaces,
• and complex welded assemblies.
  

Pickling liquids are especially suitable for industrial processes requiring uniform or large-scale treatment.

When treating stainless steel after welding, choosing between a pickling liquid and a pickling gel depends mainly on the application method, part geometry, and manufacturing process.

Pickling gels are commonly used for localized applications, while stainless steel pickling liquids are generally preferred for immersion pickling, circulation systems, and pickling baths.

All Kemplus Group Inc products are manufactured in Canada according to high standards of quality and control. The formulations are developed and supervised by professional chemists specializing in surface chemistry, metal treatment and industrial anti-corrosion formulations. The manufacturing process emphasizes raw material control, traceability, consistency of quality and reliability of performance. These products are suitable for demanding industrial environments in Quebec / Canada, the United States and the Middle East.

Yes.

The products presented on the site represent part of our standard range. Kemplus Group Inc also offers specialized solutions available on request, including:

Analysis and validation products compliant with ASTM practices

We offer solutions intended for tests and controls linked to ASTM standards, allowing:

• Verification of surface cleanliness
• Evaluation of free iron
• Post-passivation validation
• Performance control of treatments

Tailor-made formulations

We develop solutions adapted to specific cases, depending on:

• The alloy used
• The exposure environment
• Industrial constraints
• Regulatory requirements
• Operational parameters

Treating other metals and alloys

In addition to stainless steel, we also offer solutions suitable for:

• Aluminium
• Brass
• Copper alloys
• Industrial specific alloys
• Other metals depending on application

Some of these solutions are not publicly displayed and are developed in direct collaboration with the customer.

For any specific application or particular request, we recommend contacting our technical team to evaluate the most appropriate solution.

Yes.

Kemplus Group Inc offers an on-site technical support service useful in demanding or sensitive environments, including:

• Complex industrial installations
• Piping networks
• Closed systems
• Applications requiring a high level of cleanliness

Our technical team can intervene to:

• Evaluate the condition of surfaces
• Recommend the appropriate method (freeze, soak, circulation, no-rinse)
• Adjust treatment parameters
• Train on-site teams Optimize performance and safety of the process

On-site support is available in Canada and the United Arab Emirates, with the possibility of support adapted to specific projects.

The objective is to ensure controlled, safe implementation that complies with industrial requirements.

Yes.

Kemplus Group Inc offers specialized technical degreasing solutions for applications in oxygen-rich environments, compatible with ASTM G93.

In environments where oxygen is present at high concentrations (industrial oxygen, medical, critical processes), degreasing is an essential step before passivation in order to eliminate:

• Oils
• Greases
• Machining residues
• Organic contaminants
• Hydrocarbon films

These contaminants can represent a serious risk in the presence of oxygen enriched.

Our products are formulated to:

• Effectively clean stainless steel surfaces before passivation
• Eliminate organic residues
• Prepare surfaces for treatment in accordance with industrial requirements

This type of degreasing is particularly recommended for:

• Oxygen transport systems
• Industrial networks O₂
• Petrochemical applications
• Sensitive process equipment

A suitable procedure can be provided depending on the level of cleanliness required and the specific application.

Yes.

In addition to the 300 and 400 series, Kemplus Group Inc also develops solutions adapted to:

• Duplex and Super Duplex (e.g. 2205, 2507)
• High-strength stainless steel alloys
• Specific grades for severe environments
• Petrochemical and marine applications

Our professional chemists adjust the treatment parameters according to:

• The chemical composition
• The exposure environment
• Industrial requirements
• Anti-corrosion performance criteria

Certain formulations for Special alloys are available on request only.

A technical consultation helps determine the most appropriate solution.

Yes.

Kemplus Group Inc offers formulations specially developed for stainless steels in the 400 series (martensitic and ferritic), including in particular grades 410, 420 and 430.

These alloys have metallurgical characteristics different from the 300 series, in particular:

• Variable chromium content
• Absence or low nickel content
• Different behavior in passivation

This is why we have developed products adapted specifically to the series 400, allowing:

• Optimized removal of free iron
• Effective stabilization of the passive layer
• Improved corrosion resistance tailored to these grades

Some of these specialist solutions are not currently displayed on our website.

For any application involving the 400 series, we recommend contacting our technical team to obtain the appropriate formulation and procedure.

Yes. Kemplus Group Inc offers online technical support, personalized assistance, adapted procedures, training and on-site support in Canada and the United Arab Emirates. The objective is to help companies control their passivation with safe, efficient solutions that comply with international industrial standards.
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Industrial passivation solutions are used in the manufacturing of stainless steel equipment, the food, pharmaceutical and biotechnology industries, water treatment, the petrochemical industry and the Oil & Gas sector. Markets served include Canada, United States and the Middle East.

Yes. The processes are designed to be compatible with ASTM International, ASTM A967 and ASTM A380 standards.

Detailed procedures tailored to each application are provided, including technical parameters, contact times, application methods and validation recommendations.

Rinse-free or dry passivation is a controlled chemical process allowing intervention without water consumption, without effluent and without wastewater management, while simplifying on-site operations.
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