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Measure CDP Coatings Inside Car Body Parts

Measurement of CDP in Car Bodies

Without a Protective Cathodic Dip Coating, the Body Corrodes Unnoticed

In the automotive industry, the anti-rust warranty has become an important hallmark of car quality. Particularly in hard-to-reach areas such as the cross beams and pillars of the steel car body, specified tolerances for CDP coating thicknesses must be ensured, because in these areas, corrosion can proceed long undetected.

A Cavity Probe from Fischer is the Solution for Hard-to-Reach Places

Modern car bodies are usually protected from rust with a primer coat applied by cathodic dip painting (CDP). Until now, it was not feasible to measure the coating thickness inside the hollow parts without destroying the entire car body. Common practice has been to dismantle random car bodies for spot-checking of these hidden areas. This approach carries a very high cost and makes systematic, real-time quality control more or less impossible.

For exactly this purpose, FISCHER has developed the V3FGA06H โ€œcavity probeโ€ which, due to its design, can be inserted into almost any opening in cross beams or pillars for accurate and non-destructive measurement of the CDP coating thickness โ€“ on the inside.

The Probe can also be used without Visual Contact

The magnetic inductive probe with its wear resistant tip has been optimized for all typical CDP coatings thinner than 25 ฮผm (including Zn). It has a specially curved, slim shape and fits through small openings in the car body to measure the thickness of lacquer coatings in what was once an inaccessible area. Its small, flexible, attached head with three-point support guarantees precise positioning and repeatable measurements even inside the cross beams and on curved surfaces.

Perfect Connection by Software

The V3FGA06H probe works with FISCHERโ€™s FMP series instruments, which are equipped with a USB port that makes it convenient to transfer measurement results to a computer for evaluation, recording and storage using FISCHER DataCenter software. A combination of the DUALSCOPEยฎ FMP100 gauge and FISCHER DataCenter IP (Inspection Plan) allows the user to create inspection plans on a PC and transfer them back to the instrument, providing visually aided guidance though a defined measurement task.

Complex Measurements with the Cavity Probe V3FGA06H

With the cavity probe V3FGA06H and easy-to-operate FMP instruments from FISCHER the thickness of CDP coatings in difficult to access cavities such as inside door sills, brackets or reinforced parts can be measured quickly, accurately and, above all, without dismantling. Your local FISCHER representative will be happy to answer any questions you may have.

FMP100 and H FMP 150, Coating Thickness Gauge
ProductsFMP100 and H FMP 150, Coating Thickness GaugeFMP100 and H FMP 150, Coating Thickness Gauge
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