What is a paint thickness gauge and why it matters

A paint thickness gauge measures the paint layer in micrometers (µm).

Typical readings: - Factory paint: 80–150 µm - Light respray: 180–300 µm - Filler + bodywork: 500 µm and above

This tool instantly reveals any panel that's been reworked after an accident — even if the paint job looks factory-fresh. No workshop can fool it.