Stainless Steel Pickling & Passivation

81 Years in Metal Finishing. Trading since 1945.

Our dual pickling & passivation process is applied by immersion in citric acid based chemistry after a choice of specific pre-treatments via our tank immersion process.

This process will remove contaminants of the stainless steel and assist the formation of a continuous chromium-oxide, passive film. Our process conforms to most commercial, industrial and aerospace requirements.

Zinc Plating

Aluminium Conversion Coatings

Phosphoric Acid Anodising

3Mâ„¢ Scotch-Weldâ„¢ Structural Adhesive Primer EW-5000 AS is a sprayable, low VOC, heat curing, structural adhesive primer that contains a non-chromated, corrosion inhibiting package to provide protection against corrosive environments.

Bond Priming

Powder Coating

Special Processes

Accreditation Certificates

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Happy Easter

Easter Opening Hours

As Easter is nearly upon us, we would like to inform you that our services will be temporarily unavailable over the Easter period.

Closure Dates:
From: Good Friday 3rd April 2026
To: Easter Monday 6th April 2026

During this time, our offices and production services will not be available. We will resume normal operations on Tuesday 7 th April 2026 and respond to any enquiries as soon as possible.

On behalf of Mark, Susan and Christopher Oates and the entire Diamond Metal Finishing team – We wish you a Happy Easter!

We have immediate vacancies for the following positions:

Experience would be preferred, but not essential. Apply by email to employment@diamondmetalfinishing.co.uk