Sealing arrangement piston rod for a cylinder of isolating a coating installation.

Sealing arrangement piston rod (12) for an insulating cylinder (7) of a coating installation, in particular an installation of electrostatic coating with a) a guide piston rod for axially displaceable guidance of a bar piston (11), supporting the piston rod (11) a scraper piston (8), in order to scrape paint residues from the inner wall of the insulating cylinder (7), b) a first seal (17) sealing the guide piston rod relative to the piston rod (11), characterized by c) a second seal (18) for sealing the guide piston rod relative to the piston rod (11 ), the second seal (18) axially offset from the first seal (17) being arranged.