This type of brush can be sometimes specified for Pinhole / Holiday testing on delicate type coatings. Three different types of conductive rubber probe can be supplied for the Holiday Detector / Pin-hole Detector / Spark testers.
Conductive rubber brushes are useful for field joint coating of pipeline coatings and small repair patches and even thin film applications of coatings.
Internal conductive
brushes are also supplied in circular design for internal
coating inspection of pipelines. For long length of internal
inspection, we offer extension sticks with roller attachments
for easy movement.
Relevant standards ASTM F941, ISO 8502, ISO 8503, SSPC etc
NACE standards describes the relevant details for coating application, inspection requirements, and marine surface
preparation.
This item is made of
conductive neoprene pieces sandwiched between aluminum disks.
Two such plates, joined with bolt of holding electrode for the
inspection of internally coated pipes. To use an internal
electrode, a high voltage cable must be inserted through the
pipe, with one end connected to the holiday detector and the
other end connected to the internal electrode. Internal
conductive brush is supplied with one roller attachment.
Always specify make of holiday detector while ordering.
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