High Voltage Porosity Detection

High Voltage Technique: The high voltage, or porosity technique, can be used to test coatings up to 25mm (1”) thick and is ideal for inspecting pipelines and other protective coatings. Coatings on concrete can also be tested using this method.

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Pinhole & Porosity

Elcometer Limited

Premature corrosion of a substrate is usually due to a coating failure. A major cause is the presence of flaws in the finished coating. Collectively referred to as porosity, the main types of flaws are:

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Wet Sponge Pinhole Detection

Elcometer Limited

Wet Sponge Technique: A low voltage is applied to a moist sponge. When the sponge moves over a coating flaw, liquid penetrates to the substrate and completes an electrical circuit, setting off the alarm. The wet sponge technique is suitable for measuring insulating coatings less than 500μm (20mils) on conductive substrates, and is ideal for powder coatings and other coatings where the user does not wish to damage the coating.

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UV Pinhole Detection

Elcometer Limited

UV light can be used as a low cost, quick method of detecting pinholes in coatings.

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Pulsed DC Holiday Detector Inspection Kit

280 - Elcometer Limited

The Elcometer 280 Pulsed DC Holiday Detector is a ‘stick type’ holiday detector that has been designed to make pulsed DC high voltage holiday detection safer, easier and more reliable than ever before.

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DC Holiday Detector

Elcometer 236 - Elcometer Limited

The Elcometer 236 Holiday Detector provides high voltage porosity testing to detect pits, flaws, holes, etc. in a wide variety of non-metallic coatings.

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Holiday Detector

266 - Elcometer Limited

The Elcometer 266 Holiday Detector revolutionises high voltage DC testing of coatings porosity detection making it safer, easier and more reliable than ever before.

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High Voltage Porosity Detection

Topics

Pinhole & Porosity

Wet Sponge Pinhole Detection

UV Pinhole Detection

Pulsed DC Holiday Detector Inspection Kit

DC Holiday Detector

Holiday Detector