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Holiday Pinhole Detection
Holiday Detectors are used for detecting porosity, pinholes and flaws in coatings on conductive substrates.
Pinholes will eventually lead to premature coating failure. Coatings provide an effective safeguard against corrosion, so it is critical that any pinholes are detected at the earliest possible stage after coating cure.
Most High Voltage Holiday Detector’s are supplied in an industrial Carry Case, High Voltage Handle, Band Brush Probe, 10m Earth Cable and Carry Bag.
Calibration Certificate is available as option.
Holiday Detector’s is compliant to ISO 29601, ISO 2746, NACE SP0274, NACE SP0188 and NACE SP0490.
Also known as Holiday Tester, Pinhole Detector, Porosity Detector, Porosity Tester and Spark Tester.
Showing 1–15 of 21 results
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BlastOne stocks all accessories and supplies for the DeFelsko PosiTest® LPD pinhole detectors. This category has the replacment sponges and sponge hardware. Details as follows:- Adaptable sponge hardware for a variety of test configurations
- 200mm and 450mm square sheet sponges for cutting custom shapes
- 180mm and 600mm wide roller wands, including initial sponges
- Replacement sponges to use in rectangular or roller holders. Note: roller sponges are 30mm wide, with 6 being used in the 180MM wand, and 19 being used in the 600mm wand.
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INDHHDHCBRSH5BlastOne offers all instruments and accessories from the DeFelsko range on-line, for easy ordering, access to operational manuals, and more. This half-circle electrode for the PosiTest HHD is the latest innovation from DeFelsko, offering easier use on small pipes with flanges and other protrusions. MPN: HHDHCBRSH5INDHHDHCBRSH5BlastOne offers all instruments and accessories from the DeFelsko range on-line, for easy ordering, access to operational manuals, and more. This half-circle electrode for the PosiTest HHD is the latest innovation from DeFelsko, offering easier use on small pipes with flanges and other protrusions. MPN: HHDHCBRSH5Part Number Purchase Price INDHHDHCBRSH5 $488.73 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$488.73
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Reduce the investment required to convert to PosiTest® HHD equipment by using these adaptors. Makes other brands of brush and spring electrodes compatible with DeFelsko High Voltage Holiday Detectors. (Adaptor not required for SPY electrodes)- Three adaptors available with MPN's shown, as follows:
- HHDPCWIADPT - PCWI Adaptor
- HHDTRADPT - Tinker & Rasor Adaptor
- HHD266ADPT - 266 and 280 Adaptor
- Three adaptors available with MPN's shown, as follows:
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Part Number Purchase Price INDHHDCONNECT $250.63 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$250.63
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BlastOne offers all DeFelsko instruments and accessories on-line for easy access to operation manuals, ordering, and more. This group of products are stand-alone voltage testers for the High Voltage Holiday Detectors. Although the PosiTest® HHD units have built-in voltmeters with a traceable calibration certificate, other brands may not, and some standards call for standalone voltmeter verification. Two versions are available, as follows:- MPN: HHDVERIFY, for all Pulse-type holiday detectors in the range from 500 to 35,000 volts.
- MPN: HHDCVERIFY, for all Continuous-type holiday detectors in the range from 500 to 30,000 volts.
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INDLPDCBLDWANDBlastOne carries all DeFelsko instruments, supplies, & accessories. This accessory converts the PosiTest LPD low-voltage pinhole detector into a cabled wand style unit and is compatible with the rectangular and roller sponge hardware (not included). The unit comes complete with the remote wand handle and a 5' (1.5m) hot-wire cable.
INDLPDCBLDWANDBlastOne carries all DeFelsko instruments, supplies, & accessories. This accessory converts the PosiTest LPD low-voltage pinhole detector into a cabled wand style unit and is compatible with the rectangular and roller sponge hardware (not included). The unit comes complete with the remote wand handle and a 5' (1.5m) hot-wire cable.
Part Number Purchase Price INDLPDCBLDWAND $150.38 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$150.38
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INDLPDEXTBlastOne offers all parts and accessories for DeFelsko testing instruments. This extension rod accessory extends the reach of the PosiTest® Low Voltage Pinhole Detector by 12" (305mm). Multiple extensions can be connected together to further extend the reach. MPN: LPDEXTRODINDLPDEXTBlastOne offers all parts and accessories for DeFelsko testing instruments. This extension rod accessory extends the reach of the PosiTest® Low Voltage Pinhole Detector by 12" (305mm). Multiple extensions can be connected together to further extend the reach. MPN: LPDEXTROD -
INDLPDVERIFYBlastOne stocks all accessories and supplies for DeFelsko testing instruments. This PosiTest LPD verifier is designed to check the accuracy of the low-voltage pinhole detector. In addition to checking accuracy, the Verifier can be used to calibrate the LPD if used in conjunction with a digital multimeter (not included). Each PosiTest LPD Verifier comes complete with a Decade Box, connection cable, and instructions. MPN: LPDVERIFY
INDLPDVERIFYBlastOne stocks all accessories and supplies for DeFelsko testing instruments. This PosiTest LPD verifier is designed to check the accuracy of the low-voltage pinhole detector. In addition to checking accuracy, the Verifier can be used to calibrate the LPD if used in conjunction with a digital multimeter (not included). Each PosiTest LPD Verifier comes complete with a Decade Box, connection cable, and instructions. MPN: LPDVERIFY
Part Number Purchase Price INDLPDVERIFY $1,716.83 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$1,716.83
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INDLPDREDWIREThis 15' (4.5m) connection wire (for the wand or paint pole), which is included with the LPD accessory pack or the LPD Cabled Wand kit, is also available separately here. MPN: LPEDREDWIREINDLPDREDWIREThis 15' (4.5m) connection wire (for the wand or paint pole), which is included with the LPD accessory pack or the LPD Cabled Wand kit, is also available separately here. MPN: LPEDREDWIREPart Number Purchase Price INDLPDREDWIRE $62.66 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$62.66
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BlastOne offers all DeFelsko testing instruments and consumables with easy, on-line ordering capability. This product group includes the Li-Ion batteries used in either the PosiTest HHD or the PosiTest HHD C. -
INDHHDFANBRSHBlastOne offers all replacement parts for DeFelsko industrial testing equipment on-line for easy ordering, access to instructional material, etc. This 6" stainless steel fan brush for the PosiTest HHD series is compatible with the original HHD and the HHD C units, and come standard with each new unit. It is available as a replacement part here. MPN: HHDFANBRSH
INDHHDFANBRSHBlastOne offers all replacement parts for DeFelsko industrial testing equipment on-line for easy ordering, access to instructional material, etc. This 6" stainless steel fan brush for the PosiTest HHD series is compatible with the original HHD and the HHD C units, and come standard with each new unit. It is available as a replacement part here. MPN: HHDFANBRSH
Part Number Purchase Price INDHHDFANBRSH $75.19 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$75.19
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INDHHDSTRAPThe DeFelsko HHD shoulder strap, which is included in the full HHD kit, is available separately as a replacement item (or as an optional add-on when purchasing the basic HHD kit).INDHHDSTRAPThe DeFelsko HHD shoulder strap, which is included in the full HHD kit, is available separately as a replacement item (or as an optional add-on when purchasing the basic HHD kit).Part Number Purchase Price INDHHDSTRAP $37.59 Web price iPlease sign in to your account to see your pricing, which may be different from the price displayed.$37.59
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What is the difference between a holiday detector and a porosity detector?
A holiday detector and a proximity detector are in essence the same thing. An electrical current is run over the painted/coated steel surface and in the event of porosity or pinhole in the coating (also known as a holiday) the current short-circuits to earth and creates an alarm. With high-voltage holiday detectors this can create a spark – hence the name spark tester.
BlastOne has complete range of coating inspection instrumentation, such as digital coating thickness gauge, CTG, ferrous or nonferrous, surface profile meters / surface profile measuring device, testex tape, dew point meters, and magnetic surface thermometers. There are many spark tester manufacturers which make different configurations of spark tester/holiday detectors – depending on the application and the complexity of the surface that requires testing for porosity in the paint coating
High-voltage spark tester is come with different width bristle brushes or rolling spring probes, which can be used on pipelines
Low-voltage sponge detectors and sponge holiday detectors are also available
Paint inspectors should use caution when using high voltage porosity detectors high-voltage holiday detector
It is important that 100% of the coated surface is tested for pinholes using a spark tester. Where ever a pinhole is located, a repair must be conducted in the paint coating – To ensure long coating life and and low maintenance
Most Holiday Detectors have Regulated direct current pulse voltage outputs
What voltage should I use for holiday detection/pinhole detection on my paint coating?
To determine which voltage I need to use on my spark tester, it is important to refer to the paint coating spec sheet and the relevant standards applicable to high-voltage porosity detection
Protective coatings are used to prevent corrosion on structural steel surfaces, but areas of thin or compromised coatings may not be immediately visible to the naked eye. These defects in the applied coating, known as pinholes or holidays, can adversely affect the longevity of the protective coating.
BlastOne’s offering of pinhole detection instruments are reliable tools in ensuring the quality of the applied coating. The instruments conform to all major industry standards, including NACE, ISO, ASTM, and ACA, for pinhole/holiday detection.
Additionally, the instruments are easy and safe to use and are designed to be easily adapted to measure surface of various shapes and sizes. Various kits and modular tools are also available, allowing the tools to adapt to any application.
