Elcometer 141
Elcometer 121
Paint Inspector Gauge (PIG)
Test Method

Elcometer Paint Inspection Gauge

The PIG test method is a destructive test to measure the thickness of a coating which is over certain coating/substrate combinations and to also measure individual layers of a multi-layer coating system.

1. Take the coated product

2. Using the marker, mark a line across the coating

3. Using the PIG, make a cut at right angles to the marker line, all the way down to the substrate

4. Using the microscope, measure the number of graticule divisions across a coating layer, using the sharp cut

5. Using the Scale factor (number of microns or mils per division), calculate the coating thickness

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