Holiday test for pipe / holiday detector is suitable for all types of coatings like fusion bonded epoxy, coal tar epoxy, paints, polyester, polyurethane, pipeline tapes, heat shrinks and asphalt. Holiday tester is versatile unit can be used to inspect protective coatings applied to pipelines, tanks, pilings, fire lines or buried pipelines of conductive surface. Holiday test method is very simple. A test voltage is applied to the coating by moving a brush probe across the surface and where there is either a pinhole or flaw the voltage will spark through the coating at the flawed location a red flashing indicator will flash and an audible alarm will sound the detected flaw can now be marked for subsequent repair and testing resumed for the remaining surface area, if no flaws are detected the test will therefore be non-destructive test method.

We do holiday testing of various diameter Pipelines and tanks.