The preparation of samples with controlled and reproducible film thicknesses is essential in laboratory tests.
For numerous products such as paints, inks, varnishes, adhesives and cosmetics, the reliability of laboratory tests depends directly on the quality and consistency of the applied samples.
Repeatability and reproducibility of physical parameters (drying time, elasticity, abrasion resistance, etc.) and optical parameters (gloss, colour, hue) can only be achieved from uniform, comparable films with rigorously controlled thicknesses.