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    Dye Penetrant Inspection

    Overview

    Dye Penetrant Inspection (DPI), also known as Penetrant Testing (PT), Liquid Penetrant Inspection (LPI) or Fluorescent Penetrant Inspection (FPI). Dye Penetrant Testing is an NDT method that is used to reveal surface breaking flaws by bleed out of a coloured or fluorescent dye from the flaw.

    Dye Penetrant Inspection can be used on almost any non-porous material. The technique of Dye Penetrant Inspection is based on the ability of a liquid to be drawn into a clean surface-braking flaw by capillary action. After a period of penetration time, excess surface penetrant is removed and a developer applied. This draws the penetrant from the flaw to reveal its presence. Colour contrast penetrant requires good white light while fluorescents need to be used in darkened conditions with an ultraviolet light (also known as Black Light).

    Recent projects

    Inspectahire has worked on a diverse range of projects across the world. Learn more about what we do and our products!

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    The Royal Mint Remote Cleaning & Inspection

    The Inspectahire team deployed December 2021 to affect Water Jetting of a Retort using HP Retro-jetting techniques for the removal of Zinc Oxide and Brass deposits from the internal bore of a Retort...

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    Wind turbine inspection

    As people and businesses become more environmentally aware and want to reduce their carbon footprint, the switch to renewable energy grows apace. To meet this demand the number and scale of wind...

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    Hydro power station support infrastructure inspection

    Between the 1930’s and 1950’s there was a concerted effort throughout Scotland to develop hydro power stations to produce electricity to meet the increasing demands of consumers.

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    Talk to one of our experts

    Contact our technical team for all enquiries. Our teams are here to help and ready to provide friendly advice on all aspects of inspection projects.

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