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A paint color change system and method for sequentially supplying different color electrically conductive paints to an electrostatic applicator. Paint is supplied through a supply hose to a first isolated reservoir and the supply hose is purged and dried to form a voltage block. While paint is suppl

A paint color change system and method for sequentially supplying different color electrically conductive paints to an electrostatic applicator. Paint is supplied through a supply hose to a first isolated reservoir and the supply hose is purged and dried to form a voltage block. While paint is supplied through a first delivery hose from the first reservoir to an applicator, a second reservoir is cleaned, paint is supplied to the second reservoir through a supply hose, and the supply hose is purged of paint and dried to form a voltage block. Upon completion of coating with the first color paint, the first delivery hose is purged of paint and dried to form a voltage block and paint then is supplied from the second reservoir through a second delivery hose to the coating applicator. If the same color paint is applied from both reservoirs, the first delivery hose can be cleaned and dried after paint delivery from the second reservoir has started to permit continuous coating.

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A method for selectively supplying different color electrically conductive coating material to an electrostatic coating applicator comprising the steps of: (a) supplying a predetermined quantity of coating material from a grounded coating material supply through a first electrically insulating hose

A method for selectively supplying different color electrically conductive coating material to an electrostatic coating applicator comprising the steps of: (a) supplying a predetermined quantity of coating material from a grounded coating material supply through a first electrically insulating hose to a first reservoir; (b) cleaning and drying said first hose to form a voltage block between such supply and said first reservoir; (c) supplying coating material from said first reservoir through a second electrically insulating hose to the coating applicator; (d) simultaneously with supplying coating material from said first reservoir to the coating applicator, supplying coating material from a grounded coating material supply through a third electrically insulating hose to a second reservoir; (e) cleaning and drying said third hose to form a voltage block between such supply and said second reservoir; and (f) supplying coating material from said second reservoir through a fourth electrically insulating hose to the coating applicator.