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.
A power supply generates a high voltage DC to a probe. As the probe passes over a flaw, a spark at the contact point sets off the alarm.
Continuous DC holiday detectors, such as the Elcometer 236 Holiday Detector, require direct connection to the conductive substrate. The Elcometer 236 holiday tester provides the user with complete control of voltage and sensitivity settings and is available in 2 versions- 15kV and 30kV.
- Surface Cleanliness
- Climate, Dewpoint & Relative Humidity
- Dry Film Thickness
- Digital Coating Thickness Gauges
- Mechanical Coating Thickness Gauges
- Destructive Coating Thickness Gauges
- Calibration
- ElcoMaster® Software
- Abrasive & Blast Inspection
- Surface Condition
- Surface Profile
- Surface Roughness
- Moisture Measurement
- Oven Temperature Profile
- Wet Film & Powder Thickness
- Adhesion Testers
- Material Thickness
- Pinhole & Porosity
- Wet Sponge Pinhole Detection
- High Voltage Porosity Detection
- High Voltage Accessories
- UV Pinhole Detection
- Inspection Accessories
- Inspection Kits
- Gloss & Reflectance
- Colour Management
- Fineness of Grind/Dispersion
- Density & Specific Gravity
- Viscosity & Flow Measurement
- Flash Point
- Film Application & Test Charts
- Drying Time & Permeability
- Washability & Abrasion
- Hardness & Scratch Resistance
- Elasticity, Bend & Impact Testers
- ElcoMaster® Software
- Inspection Kits
- Abrasive & Blast Inspection
- Surface Condition
- Surface Profile
- Surface Cleanliness
- Climate, Dewpoint & Relative Humidity
- Moisture Measurement
- Wet Film Thickness
- Dry Film Thickness
- Digital Coating Thickness Gauges
- Mechanical Coating Thickness Gauges
- Destructive Coating Thickness Gauges
- Calibration
- Material Thickness
- Adhesion Testers
- Pinhole & Porosity
- Wet Sponge Pinhole Detection
- High Voltage Porosity Detection
- High Voltage Accessories
- UV Pinhole Detection
- Inspection Accessories
- ElcoMaster® Software
- Inspection Kits
- Surface Cleanliness
- Surface Roughness
- Wet Film & Powder Thickness
- Dry Film Thickness
- Climate, Dewpoint & Relative Humidity
- Moisture Measurement
- Oven Temperature Profile
- Adhesion Testers
- Gloss & Reflectance
- Colour Management
- Pinhole & Porosity
- Inspection Accessories
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.
A power supply generates a high voltage DC to a probe. As the probe passes over a flaw, a spark at the contact point sets off the alarm.
Continuous DC holiday detectors, such as the Elcometer 236 Holiday Detector, require direct connection to the conductive substrate. The Elcometer 236 holiday tester provides the user with complete control of voltage and sensitivity settings and is available in 2 versions- 15kV and 30kV.