Abstract: A device and method for preventing fouling and/or corrosion of the exposed surfaces of a structure which is in contact with seawater, brackish water, fresh water, or a combination of these. The system includes using a structure having an exposed zinc-containing surface. At the exposed surface water interface a negative capacitive charge or an asymmetric alternating electrostatic is induced and maintained.

Abstract: A system for preventing corrosion of a surface of a metal structure in contact with a corrosive environment comprising (a) a conductive zinc silicate coating in conductive contact with at least part of the surface, wherein the conductive zinc silicate coating forms an interfacial layer between the surface and the corrosive environment; and (b) means for imparting a net negative bias to the metal structure, wherein the means is a power supply means having (1) a first capacitor having a positive plate and a negative plate, wherein the negative plate is grounded to earth and the positive plate is conductively coupled to at least one emitter, and (2) one or more storage cells conductively coupled in parallel to the first capacitor, wherein the one or more storage cells have a positive terminal and a negative terminal, wherein the negative terminal is directly coupled to said metal structure and said positive terminal coupled to the metal structure, at a position remote from the negative terminal, by way of a seco

Abstract: A system for preventing corrosion of a surface of a metal structure in contact with a corrosive environment comprising:(a) a conductive zinc silicate coating in conductive contact with at least part of the surface, wherein the conductive zinc silicate coating forms an interfacial layer between the surface and the corrosive environment; and(b) means for imparting a net negative bias to the metal structure, wherein the means comprise a power supply means having a negative terminal directly coupled to the metal structure and a positive terminal coupled to a portion of the metal structure, remote from the negative terminal, by way of a capacitor or resistor,and a method of preventing corrosion using the system.

Abstract: A device and method for preventing fouling and/or corrosion of the exposed surfaces of a structure which is in contact with seawater, brackish water, fresh water, or a combination of these. The system includes using a structure having an exposed zinc-containing surface. At the exposed surface water interface a negative capacitive charge or an asymmetric alternating electrostatic is induced and maintained.

Abstract: A device and method for preventing fouling and/or corrosion of the exposed surfaces of a structure which is at in contact with seawater, brackish water; or fresh water. The system includes a conductive zinc-containing coating applied to the exposed surfaces of the structures which are susceptible to fouling and/or corrosion. At the coating and water interface a negative capacitive charge or an asymmetric alternating electrostatic is induced and maintained.

Abstract: A device for preventing fouling organisms in seawater from attaching to the exposed surfaces of a marine vessel, buoy, oil rig platform, or other seawater structure. The antifouling device includes a zinc coating applied to the exposed surfaces of the seawater structure which are susceptible to fouling. When a small negative charge is impressed upon the seawater structure, a Helmholtz double layer forms at the interface between the zinc coating and the seawater which is precludes fouling. The slight negative charge impressed upon the zinc coating also prevents dissolution of the zinc into the seawater which would otherwise be expected.