Inexpensive simply operating instrument. The stainless steel “comb” with tooth lengths varying by equal amounts is applied perpendicular to the wet film and the film thickness can be read off on the last tooth that made contact with the wet coating. 3 versions with measuring ranges 120/600/1200 microns. Also available is the Model 333-S: Large version acc. to BASF for road marking paint

A hardened and ground double wheel with an eccentric cam in the middle is rolled over a newly applied film. The wetting line on the middle cam is read off on a scale as wet film thickness. Total measuring range: 1500 microns, available in 8 different sub-ranges.