Derouging and Passivation

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WHAT IS DEROUGING?

When stainless steel develops iron oxide due to corrosion, it is known as rouge. This is unacceptable in many production environments and is removed by a process known as Derouging or Pickling. Derouging is typically carried out using a nitric acid and ammonium bifluoride solution which works by removing a microscopic layer of stainless steel and anything that is on it – the rouge.

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    OUR SPECIALIST SERVICES

    Passivation

    Our Passivation services allows you to restore corroded stainless still through the use of citric and nitric acid.

    Degreasing

    Degreasing of Components, Pipes, Fabrications and Systems is necessary to remove mineral oils, greases and debris adhered to product contact surfaces. This can stop the potential risk of explosion in pipes and oxygen service equipment.

    Derouging/Pickling

    When stainless steel develops iron oxide due to corrosion, it is known as rouge. This is unacceptable in many production environments and is removed by a process known as Derouging or Pickling. View our specialist Derouging service.

    Chemical  Descaling

    Chemical Descaling is necessary to remove water hardness scale or limescale from heat exchange equipment such as boilers, heat exchangers, calorifiers, tube bundles, autoclave jackets, water systems and cooling towers.

    Pre-commission Flushing

    It is important for the operation of water systems after commissioning that they are cleaned and treated properly at pre-commission stage. TISL are able to offer flushing in accordance with BSRIA Guidelines throughout the UK and have experience of flushing systems up to 30m3 in volume.

    Ribflavin Testing

    TISL are able to carry out on-site testing of sprayballs within your facility to ensure full coverage of vessel internals. With many new and re-purposed vessels having commissioning manuals missing or incomplete, evidence of the effectiveness of sprayballs at wetting surfaces is sometimes missing.

    Highly trained & competent personnel who specialise in the following:

    • CCNSG Safety Passport  
    • COSHH Training 
    • Working at Height 
    • ADR Chemical Transportation Licences
    • Manual Handling    
    • Confined Space Access 
    • Face Fit Testing for Respirators 
    • Job Specific Chemicals Services Training 
    • Ferroxyl Testing of Welds  
    • St Johns Ambulance First Aid Training   

    TRUSTED BY REPUTABLE BRANDS

    ThermoFisher Scientific
    AstraZeneca
    Reckitt Benckiser
    P&G
    Porton Biopharma
    3M Health Care
    Boehringer Ingelheim
    gsk
    Merck
    Novartis

    OUR ADDRESS
    Chemtech House,
    Hertford Rd,
    Barking IG11 8BL

    OPENING HOURS
    Monday – Friday
    8:00am – 5:00pm

    CALL FOR YOUR QUOTE
    Telephone: 020 8591 3875
    Out of hours: 07960 157 793

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