Passivation is a widely-used metal finishing process to prevent corrosion. In stainless steel, the passivation process uses nitric acid or citric acid to remove free iron from the surface.
Passivation is a post-fabrication best practice for newly-machined stainless-steel parts and components.
We have worked with companies from a wide range of sectors and have obtained many company approvals and accreditations.
The chemical treatment leads to a protective oxide layer, or passivation film, that is less likely to chemically react with air and cause corrosion. Passivated stainless steel resists rust.
Stainless steel passivation is performed to form a chemically inactive surface when exposed to air or other oxygen environments without changing the outward appearance of the component.
The process is predominantly carried out where there is the potential for iron particles to be present on the surface of components as contamination after machining which if not removed would corrode and therefore weaken the part.
Our technical support team are here to help answer any questions or queries you may have.
We can work to many other specifications, but the above are our most popular. Please contact us with your requirements.
Thank you for the great technical support throughout processing our Passivation work; your teams and your suppliers were always available when we needed more information
Over the last year our partnership with SWMF has paid dividends and this can be clearly seen in the quality of the surface treatment on our parts
Great team to work with, good communication and timely delivery which has improved our turnaround
High quality technical support provided when needed, including NPI and the great work the engineering team did for us embedding the Cadmium parts
Thank you for the great technical support throughout processing our Passivation work; your teams and your suppliers were always available when we needed more information
I just wanted to pass my thanks to you and your teams for all the hard work and commitment you put into processing our TSA work last week
You pulled out all the stops (despite a number of curve-balls!) and kept everyone informed – we thank you for everything you did to achieve the best results possible
A fantastic display of exceptional customer service whilst treating our Silver work
Excellent responsiveness when you were painting our time critical parts – always get a timely response on a question
Thank you for the great technical support throughout processing our Passivation work; your teams and your suppliers were always available when we needed more information
Over the last year our partnership with SWMF has paid dividends and this can be clearly seen in the quality of the surface treatment on our parts
Great team to work with, good communication and timely delivery which has improved our turnaround
High quality technical support provided when needed, including NPI and the great work the engineering team did for us embedding the Cadmium parts
Thank you for the great technical support throughout processing our Passivation work; your teams and your suppliers were always available when we needed more information
I just wanted to pass my thanks to you and your teams for all the hard work and commitment you put into processing our TSA work last week
You pulled out all the stops (despite a number of curve-balls!) and kept everyone informed – we thank you for everything you did to achieve the best results possible
A fantastic display of exceptional customer service whilst treating our Silver work
Excellent responsiveness when you were painting our time critical parts – always get a timely response on a question
Thank you for the great technical support throughout processing our Passivation work; your teams and your suppliers were always available when we needed more information
Surface treatment services to the aerospace and other high technology sectors.
We offer an extensive range of coating services including Electroplating, Electroless Plating, Anodising, Conversion Coatings, Paint and Non Destructive Testing.
As a business, South West Metal Finishing recognises its Duty of Care with respect to the environment.
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Are you unsure which surface treatment you need, or do you require some advice? Get in touch today and a member of our expert team will be happy to help.