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Premature corrosion of a substrate is usually due to the failure of the coating. A major cause of failure is the presence of flaws in the finished coating.
The Elcometer 266 DC Holiday Detector revolutionises high voltage DC testing of coatings porosity detection making it safer, easier and more reliable than ever before.
The Elcometer 280 Pulsed DC Portable Holiday is a 'stick type' holiday detector which has been designed to make pulsed DC high voltage holiday detection safer, easier and more reliable than ever before.
Elcometer offers a wide range of high voltage detector probes and accessories to suit all applications and substrates. Rolling springs and 'C-type' wire brushes are ideal for inspecting coatings on pipes and pipelines.
Frequently asked questions
What is the high voltage technique used for testing?
The high voltage technique can be used to test coatings up to more than 7mm thick. It locates all flaws in insulating coatings on conductive substrates.
What types of coating flaws can the spark testers detect?
The main types of flaws include runs and sags, cissing, cratering, pinholes, over coating, and under coating.
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