Pickling and Passivation

Welcome to Transflow Industrial Services Limited, your trusted experts for pickling and passivation. If you’re looking for pickling and passivation to enhance your stainless steel equipment, then you’ve found the solution. Get in touch with us today for pickling and passivation solutions!

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    What are pickling and 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. Pickling and passivation are processes commonly used to enhance corrosion resistance and remove contaminants on stainless steel. Here at Transflow Industrial Services Limited, we are specialists in pickling and passivation treatments.

    What is pickling?

    Pickling is a chemical treatment whereby we will treat your steel with a chemical solution. Pickling involves nitric and hydrofluoric acid. This process eliminates type 1 rouge and type 2 rouge, impurities, stains, contaminants, and rust or scale from stainless steels.

    What is passivation?

    Passivation 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. Passivation is achieved by applying a strong oxidizing agent (nitric acid) or a chelating agent (citric acid) to the stainless steel.

    Our pickling and passivation treatments 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.

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    Transflow Industrial Services

    We employ advanced techniques for pickling and passivation treatments. This ensures the optimal performance and durability of your stainless steel equipment. Speak to us today for more information about pickling and passivation.

    Who benefits from pickling and passivation?

    We provide pickling and passivation for many industries to help maintain their stainless steel equipment and infrastructure. Pickling and passivation are suitable for pharmaceutical, chemical, food and water treatment settings. Any industry utilising stainless steel equipment can benefit from pickling and passivation.

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    The Benefits of Pickling and Passivation

    • Enhanced Corrosion Resistance
      Safeguard your stainless steel equipment and infrastructure against corrosion with pickling and passivation. Pickling and passivation promote a long lifespan and deliver protection against deterioration for your equipment.
    • Optimised Performance
      Ensure optimal performance for your stainless steel equipment and infrastructure with pickling and passivation. These treatments are designed to reduce downtime, lower maintenance costs and boost productivity and profitability for businesses.
    • Compliance with Regulatory Standards
      Pickling and passivation make sure that your equipment complies with regulatory standards by maintaining hygienic and corrosion-resistant surfaces. This is particularly relevant in the food and pharmaceutical sectors.

    How are pickling and passivation done?

    • Surface Preparation
      We will thoroughly clean stainless steel surfaces to remove any loose debris or contaminants before commencing with pickling and passivation.
    • Pickling Solution Application
      We will apply a pickling solution, typically a blend of acids, to the surface. This dissolves scale, oxides, and other impurities.
    • Rinsing
      Once the pickling solution has worked, the surface is rinsed with water to remove any remaining residue.
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    FAQs About Pickling and Passivation

    What is the purpose of pickling and passivation?

    Pickling and passivation remove impurities and contaminants from stainless steel surfaces to enhance corrosion resistance and prolong the lifespan of equipment.

    Are pickling and passivation safe for food-grade applications?

    Yes, pickling and passivation are safe for food-grade applications when performed by experienced professionals using appropriate techniques and materials.

    How often should stainless steel equipment be pickled?

    The frequency of pickling and passivation will depend on factors such as usage, environmental conditions, and regulatory requirements. We can recommend an appropriate maintenance schedule.

    Can pickling and passivation damage stainless steel?

    When performed correctly by trained professionals, pickling and passivation do not damage stainless steel.

    How long do pickling and passivation take?

    The length of time pickling and passivation take will vary depending on the size and condition of the stainless steel surfaces. We can provide a detailed timeline based on your project specifications.

    Can pickling and passivation be done on-site?

    Yes, we offer on-site pickling and passivation for your convenience, minimising downtime and disruption to your operations.

    What types of contaminants do pickling and passivation remove?

    Pickling and passivation effectively remove scale, oxides, rust, and other surface contaminants that compromise the performance and aesthetics of stainless steel.

    How can I request a quote for pickling and passivation?

    You can request a quote for pickling and passivation by getting in touch with us today. We’ll be happy to discuss your needs and provide a customised solution that meets your needs and budget.

    Call Us For A Free Quote 020 8591 3875

    Why choose us for pickling and passivation?

    Experience | Certified | Huge Client Portfolio

    30 Years of Experience

    We have 30 years of experience in pickling and passivation as well as degreasing, biofilm removal and sanitisation services on purified water, WFI, pure steam and product systems.

    Experience | Certified | Huge Client Portfolio

    Fully-Trained & Certified

    We are fully trained and certified in CCNSG Safety Passport, COSHH Training, ADR Chemical, Confined Space Access, Job Specific Chemicals Services Training, Ferroxyl Testing of Welds and more.

    Experience | Certified | Huge Client Portfolio

    Huge Client Portfolio

    We 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.

    See how pickling and passivation can improve your industrial operations and contact Transflow Industrial Services Limited today to schedule a consultation with our expert team.