Derouging and Passivation

Established in 1994, we at Transflow Industrial Cleaning Services have over 27 years of experience in providing chemical cleaning and industrial services to pharmaceutical, food, healthcare, power and related industries. Our personnel are highly trained, certified and approved in many services including specialist passivation, derouging, descaling, biofilm removal and sanitisation services on purified water, WFI, pure steam and product systems. If you’re looking for a company that can carry out the derouging and passivation of stainless steel, then you need to look no further than our specialists who are experts in this field.

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    27+ YEARS OF EXPERIENCE

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    EXTENSIVE RANGE OF SERVICES

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    HIGHLY TRAINED PERSONNEL

    What is Passivation?

    Stainless steel is protected against corrosion and other damage by a naturally forming passive layer called the Chromium Oxide layer. If this is disrupted or damaged by cutting, welding, heating, grinding or through contact with chemicals, the stainless steel loses its protection against corrosion. The passivation process is a chemical treatment for stainless steel that is proven to enhance and restore the ability of the treated surfaces to be resistant to corrosion. With Transflow, the passivation of stainless steel is achieved by applying a strong oxidizing agent (nitric acid) or a chelating agent (citric acid) to the stainless steel for maximum results.

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    What is Derouging?

    Passivation of stainless steel can improve the corrosive resistance, manufacturing can leave behind several imperfections that it can’t eliminate such as heat tint or oxide scale left behind by welding and heat treating. The derouging of stainless steel is a chemical treatment whereby we will treat your steel with a chemical solution, usually hydrochloric or sulfuric acid and aims to eliminate impurities, such as stains, contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminium alloys.

    Our passivation and derouging services include:

    • Quality control with comprehensive RAMS, COSHH reports and support documentation.
    • High-quality equipment individual to each job – pumps, tanks, hoses, adaptors.
    • Ferroxyl test to confirm the presence of a passive layer after the process.
    • Off-site baths and immersion tanks with a clean room for drying, testing and wrapping.
    • Vessel entry/confined space access.
    • Professional cleaning services if required.
    • Paste passivation of small blemishes in clean rooms.
    • Control of waste chemicals and disposal according to Environment Agency legislation.

    What are the benefits of derouging and passivation?

    • Removes surface contamination.
    • Increased corrosion resistance.
    • Reduces the risk of product contamination.
    • Allows you to extend system maintenance intervals.
    • Saves money and reduces downtime.

    Call Us Today: 020 8591 3875

    passivation

    For more information about the derouging and passivation of stainless steel or any of our other services, please don’t hesitate to get in touch with us today.

    Call Us Today: 020 8591 3875

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    27+ Years of Experience

    We began in 1994 to service the expanding UK Pharmaceutical industry where we have continued to carry out specialist passivation, derouging, descaling, biofilm removal and sanitisation services on purified water, WFI, pure steam and product systems for 27 years and counting.

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    Fully-Trained& Certified Personnel

    All of our personnel are fully trained and certified in CCNSG Safety Passport, COSHH Training, Working at Height, ADR Chemical, Confined Space Access, Face Fit Testing for Respirators, Job Specific Chemicals Services Training, Ferroxyl Testing of Welds and more to guarantee your, and our, safety.

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    Fully Comprehensive Selection of Services

    We have a fully comprehensive selection of services available including specialist passivation, derouging, descaling, biofilm removal and sanitisation services on purified water, WFI, pure steam and product systems. So we can look after all your needs in-house.

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    Huge Client Portfolio

    We are highly recognised in the industry for our services and have provided our services to a huge range of reputable clients and our portfolio includes ThermoFisher Scientific, AstraZeneca, Porton Biopharma, Merck, 3M Healthcare and many more.