In this experiment, there is a difference between the OSP 400mm long wire rod and the OSP 60mm long wire rod, and a demonstration of dry film thickness measurement is given to the user.
Experimental equipment :
Wet film control: OSP-10/400 wire Bar Coater, OSP-10/60 wire Bar Coater
Dry film measurement: defelsko PosiTector 6000 FNS1
Consumables: Acrylic paint (30% solids), tinplate

Please see the following table for the measurement data results:
| test board | A board | B board | A1 board | B1 board |
| first measurement | 3μm | 4μm | 4μm | 4μm |
| second measurement | 3μm | 2μm | 5μm | 3μm |
| third measurement | 3μm | 5μm | 3μm | 2μm |
| fourth measurement | 2μm | 2μm | 2μm | 2μm |
| fifth measurement | 3μm | 3μm | 3μm | 3μm |
| average value | 3μm | 3μm | 3.3μm | 2.7μm |
Remarks: The average value is to remove the highest value and remove the lowest value.
Summary: In fact, regardless of the thickness of the same wet film, the film-making effect is the same, and the actual situation of the customer pattern can be purchased in different lengths.
顾瑜佳 - 《浙江工业大学》