Professional Detailing1 min read

Paint Inspection Maps: Revisit the Same Measurement Location

Before-and-after readings are more interpretable when they refer to the same location. Moving the probe can mix spatial variation with process change.

Updated · NANOLAB Knowledge

Practical approach

Use a non-damaging location map and consistent probe placement. Record several suitable points instead of relying on one unrepeatable spot.

A measurement near the centre before polishing and near an edge afterward does not isolate the effect of polishing.

Decision limits

Do not claim that a small numerical difference is removed coating unless the method and uncertainty support that conclusion.

Related guidance

Method reference: DeFelsko: coating thickness measurement. References describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.

Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.