The Elcometer 154 Wet Film Combs are made from ABS plastic and are designed to be used once and kept as a record of wet film thickness measurement for quality assurance or customer requirements.
Metric and Imperial values are on the same comb, 50 to 800µm on one side, 2 to 32mils on the other.
Supplied in a pack containing 500 combs. Each comb has 16 measurement steps.
Using a wet film comb
Place a comb perpendicular to and touching the substrate. Hold the comb in position and wait a few seconds until the teeth are wet. Remove the comb from the film. The wet film thickness lies between the biggest value ‘coated’ or ‘wet’ tooth and the smallest value ‘uncoated’ or ‘dry’ tooth.