Decades of Business Heritage

What is Passivation?

Professional. Innovative. Defined.

Passivation is a chemical treatment that enhances the corrosion resistance of stainless steel and other metal components by removing free iron and contaminants from the surface. This process creates a thin, protective oxide layer that prevents rust and oxidation, ensuring long-term durability.

Our advanced treatment offers superior corrosion protection by forming a passive layer that shields metal from rust and environmental damage. It enhances surface cleanliness by removing impurities, ensuring better performance of coatings and treatments.

By reducing premature wear and degradation, it extends the lifespan of critical components.

Plus, its eco-friendly, non-toxic formulation makes it a sustainable choice for industrial applications.By reducing premature wear and degradation, it extends the lifespan of critical components.

Passivation Process Benefits

At Specialist Metallic Coatings (SMC), our Passivation treatment enhances the natural corrosion resistance of stainless steel and other metals, ensuring long-term protection and improved performance in demanding environments.

Superior Corrosion Resistance

Passivation removes contaminants and forms a protective oxide layer, preventing rust and oxidation in critical applications.

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Improved Surface Cleanliness

The process eliminates free iron and impurities, ensuring a clean, uniform surface for enhanced durability.

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Extended Component Lifespan

By reducing surface deterioration, passivation helps maintain the structural integrity of metal parts over time.

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No Dimensional Change

Unlike other coatings, passivation is a non-deposit process that maintains the original dimensions of precision components.

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Eco-Friendly & Non-Toxic

Passivation is a safe, environmentally responsible process, free from heavy metals and harmful substances.

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Enhanced Compatibility with Additional Treatments

Passivated components can undergo further treatments such as zinc phosphate, zinc flake coatings, and duplex coatings to maximise performance and longevity.

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Solid.

Resilient. Unrivalled.

Unrivalled.

Unrivalled.

Beyond Passivation

Advanced Metal Coating Solutions

Alongside passivation, we offer specialist metal coatings for superior protection, durability, and performance. Our solutions include sherardizing for corrosion resistance, zinc phosphate for adhesion and wear reduction, and zinc flake coatings to prevent hydrogen embrittlement. We also provide barrel zinc plating for cost-effective precision and duplex coatings for unmatched durability. At SMC Wolverhampton, we ensure strength, longevity, and reliability for your critical components.

Applications of Passivation

Our Passivation process is trusted across industries that require superior resistance to oxidation, extended component lifespan, and enhanced material performance:

Automotive

Protects fasteners, brackets, and structural components from oxidation, ensuring long-term durability.

Rail & Infrastructure

Enhances corrosion resistance on couplings, fasteners, and metal fittings in demanding environments.

Defence & Aerospace

Provides a passive layer to prevent rust and contamination on precision-engineered components.

Oil & Gas

Protects critical parts from aggressive corrosion in offshore platforms and industrial processing facilities.

Infrastructure & Construction

Applied to metal reinforcements, fasteners, and support structures in large-scale projects.

Medical & Pharmaceutical

Ensures stainless steel instruments and equipment remain free from contaminants and corrosion.

Food Processing & Beverage

Maintains the integrity of stainless steel surfaces in hygienic environments.

Customer Approvals

We provided a high-performance coating solution for a leading blue-chip company, enhancing durability and reducing maintenance. Our quality assurance ensured superior results, strengthening the client’s trust and securing ongoing collaboration.

“Specialist Metallic Coatings delivered exceptional results, reducing maintenance costs and improving durability. Their expertise makes them a trusted partner.”

Enhanced Protection & Additional Treatments

Beyond standard Passivation, we offer specialised treatments to further enhance corrosion resistance, improve surface performance, and regulate friction. These include advanced sealants, lubricants, paints, and organic (duplex) coatings, delivering up to 500+ hours of salt spray resistance.

Key Properties

  • › Exceptional Corrosion Resistance
  • › Extended Component Lifespan
  • › Improved Surface Cleanliness
  • › Enhanced Compatibility

Other Properties

  • › Hydrogen Embrittlement-Free
  • › Non-Depositional Process
  • › Eco-Friendly & Efficient

Next Steps...

Protect Your Components with Industry-Leading Passivation

Extend the lifespan of your metal components with our advanced Passivation solutions. Enhance corrosion resistance, improve surface cleanliness, and ensure optimal performance with our industry-leading treatments.

Innovative. Defined.

Innovative. Defined.

Working around the clock,
around the world,
in all industries.

As industry leaders, Specialist Metallic Coatings provide professional, innovative, and unbiased solutions when it comes to metal coating systems. See below our buiness statisitics.

106,043

Components made in 24 hours

2,043

Partnerships around the world

100

Years of business & experience