The foil thickness measuring instrument may be used to measure the thickness of sheet metal, plastic foil, carton, paper, and other laminates, in a direct manner.
The second and more important application from the point of view of coating material technology is the thickness measurement of coating materials on thin base material previously referred to. If the base material is non-metallic, magnetic or electric, thickness measurement techniques cannot be employed.
For non-destructive testing this instrument is the only possible method of measuring differences.
A particularly important field of application for this instrument, for which it can be considered to be essential is the measurement of “Leneta” foils for the scrubbing resistance test in accordance with the German standard DIN 53 778 Part 2 and on black and white contrast cards for colour measurement and hiding power.