A coating composition for application to primed metal substrates as a topcoat is disclosed. The method utilizes a plurality of compressed air pressure cylinders which are supported on a plurality of horizontal arms along different axes over a circuit board. Two DFT shifted of half bin with respect to the zero frequency provide a linear response of the discrimination and good immunity to noise. The flexible resilient layer causes the nib to return to original position, breaking contact with the touchscreen display. Preference is given to the use of water-insoluble lacquer preparations and a combination of at least one systemic antimycotic from the group of itraconazole, terbinafine and fluconazole or salts thereof with at least one topical antimycotic from the group of ciclopirox, 6–1-hydroxy-4-methyl-2-pyridone, amorolfine and butenafine or salts thereof.