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Pinhole Detection
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Pinhole detection is essential to monitor the integrity of the protective coating from its initial application to the end of its service life. Pinholes are caused by air entrapment, which is then released from the surface, or by the entrapment of particulates (dust, sand etc.) which do not stay in place. Elcometer offers a range of Pinhole Detectors from the low cost UV Pinhole Detector Flashlight to the full Pinhole Detector Inspectors Kit.
The Elcometer 270 range utilizes the wet sponge technique and has been designed to set a new standard for wet sponge pinhole detectors - a high quality, low voltage detector with similar accessories to a high voltage spark tester.
The Elcometer 270 Pinhole Detectors are available both as an individual gauge and as a pinhole inspection kit. Elcometer also offers the 260 UV Pinhole Flashlight for a quick, low cost method of testing coatings for pinholes.
Visit Pinhole Detection methods explained for more information on Pinhole Detection, and selecting the correct model.
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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 insulated coatings less than 500 µm or 20 mil 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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The Elcometer 270 Pinhole Detectors Inspection Kit utilizes the wet sponge technique and has been designed to set a new standard for wet sponge detectors - a high quality, low voltage detector with similar accessories to a high voltage spark tester. The Inspector’s Kit does not include the main instrument; simply add the model number to the order.
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The Elcometer 260 UV Pinhole Flashlight is battery powered and housed in a rugged aluminum case providing a quick, low cost method of testing coatings for pinholes.
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