Application
Overview
Constant and defined film thicknesses is a precondition for testing and analysis of coating materials and coatings. Many properties of these materials depend on the film thickness.
It is important to know that for physical reasons the maximum achievable wet film thickness is not equal to the gap height. The following guidelines apply:
- 15 – 100 µm (0.59 – 3.94 mil) (Gag height), about 50 % (Wet film thickness)
- above 100 – 300 µm (3.94 – 11.81 mil) (Gag height), about 60 % (Wet film thickness)
- above 300 – 500 µm (11.81 – 19.69 mil) (Gag height), about 80 % (Wet film thickness)
- above 500 µm (19.69 mil) (Gag height), up to 90 % (Wet film thickness)
For the choice of the correct gap height please also consider that the dry film thickness obtained can be less than the wet film thickness depending on the weight percent of solids.
There are wedge-shaped and uniform applications. For wedge-shaped applications, we offer the ZUA 2000. There is a wide choice of uniform applicators from wire-bar, profiled, semi-circular, 4-sided up to universal applicators.

ACC586
Wire-bar Applicator
Applicator for preparing uniform films of coating materials, adhesives and similar products on flat and flexible substrates with an automatic film applicator or for manual application.

ZAA 2300
Automatic Film Applicator
Automatic laboratory equipment for accurate and reproducible application of coating materials, adhesives and similar products.

ZAA 2600.A
Automatic Film Applicator
Automatic laboratory equipment with touchscreen for accurate and reproducible application of coating materials, adhesives and similar products with almost all applicators.

ZAF 2010
4-sided Applicator Frame
Applicator frame for applying uniform films of coating materials, adhesives and similar products on flat substrates.

ZFR 2040
4-sided Applicator
Applicator for application of uniform films of coating materials, adhesives and similar products on flat substrates.

ZND 2050/2052
Wet Film Thickness Gauges
Comb gauges for determining the thickness of all types of liquid coatings.

ZPH 2035
Specimen Holder
Specimen holder for fixing a variety of substrates especially test charts for preparing uniform films of coating materials, adhesives and similar products in combination with wire-bar applicators or profile rods.

ZSA 2110
Profile Rod
Applicator for preparing uniform films of coating materials, adhesives and similar products on flat and flexible substrates.

ZUA 2000
Universal Applicator
Applicator for universal use, with gap height adjustable from 0 µm - 3‘000 µm, for preparing uniform films or wedge-shaped layers up to a difference of 3‘000 µm of coating materials, adhesives and similar products on flat substrates.