Electrostatic is based on the principle that opposite charges attract and like charges repel. Two positively charged things will repel each other. Using this natural electrostatic phenomenon, Eco Statics has developed a patented breakthrough cordless application technology. The Eco Statics Cordless Electrostatic System places a positive charge on the liquid before entering the nozzle allowing the maximum levels of liquid to be charged and sprayed at negatively charged surfaces (most surfaces are either negative or neutral) allowing for a more complete coverage of the targeted surface.