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Porosity

Coatings applied can have irregularities due to different circumstances. Surface uncleanness, paint differences and dust or air bubbles enclosed can cause pinholes, thin spots, cracks etc. To prevent an early breakdown of the coating system causing corrosion underneath, tests has to be made to find the weak spots and action can be taken before p...

Coatings applied can have irregularities due to different circumstances. Surface uncleanness, paint differences and dust or air bubbles enclosed can cause pinholes, thin spots, cracks etc. To prevent an early breakdown of the coating system causing corrosion underneath, tests has to be made to find the weak spots and action can be taken before problems occur over time. For these kind of tests High Voltage Holiday Detectors provide an accurate way for locating faults in non-conductive coatings and linings and detection of pinholes, flaws, inclusions, thin spots and bubbles in a coating.

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  • The TQC Low Voltage Pinhole detector enables the user to inspect various coatings on conductive substrates for small defects such as holidays and pinholes using the 'wet sponge technique'.

  • The TQC High Voltage Holiday Detector or porosity test provides accurate detection of pinholes, flaws, inclusions, thin spots and bubbles in a coating. The gauge has been specifically designed to revolutionise high voltage DC testing of coatings, making it safer, easier and more reliable than previously possible.

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