The world's best protection from rust!


CouplerTec Electronic Rustproofing is a wholly owned and operated Australian company which is based at Burleigh Heads on Australia’s Gold Coast. CouplerTec is the World leader in the manufacture and supply of Electronic Rustproofing Systems for the Automotive and Heavy Equipment industries. More than 750,000 CouplerTec Electronic Rustproofing Systems have been sold worldwide. CouplerTec’s Internationally Patented ‘Capacitive Coupling Technology’ has a superior reputation for product effectiveness, quality and reliability. Our product is backed by a network of more than 100 Authorised Couplertec Dealers located throughout Australia which provides sales, installation and warranty support.


CouplerTec’s Patented ‘Capacitive Coupling Technology’ is an Electronic corrosion control process that can be used on any mobile or fixed above ground (non submerged) application such as; motor vehicles (cars, trucks buses), heavy machinery/equipment (tractors, forklifts, graders, loaders, dozers, excavators and cranes etc), towers, generators and sheds. Almost any above ground metal structure can be protected using CouplerTec’s Patented Capacitive Coupling Technology.

The World's Best Protection from Rust!

We provide vehicle owners throughout the world with a proven, environmentally friendly, cost effective method of protection against rust & corrosion. All CouplerTec™ Electronic Rustproofing systems are fully digitally controlled using state of the art microprocessor technology.

Diagram of Protection Process. Motor Vehicle Sheet Metal (Negative Plate of the Capacitor). Paint Layer (Dielectric) Capacitive Couple (Positive Plate of the Capacitor). Negative Charge on Metal Surface. Electrons accumulate between the positive & negative plates and are dispersed across the metal surface of the structure. The paint (dielectric) holds the charge static.
Diagram of the the Result When Protected by CouplerTec. Metal. Paint layer. This double layer of positive and negative ions provides a barrier to inhibit the rusting process. Negative Charge on Metal Surface. A polarised layer of ions reduces the oxidation process, in effect, stopping the rusting process.


CouplerTec’s Patented Capacitive Coupling Technology interferes with the electrical charge between Iron and Oxygen so it becomes hard for these elements to combine to form rust. In other words, the technology interferes with the metal’s ability to react with Oxygen.

CouplerTec’s Capacitive Coupling Technology achieves this by creating a negative (-) electrostatic surface charge on the metal surface of the protected structure. The (-) Oxygen atom is repelled by the (-) electrostatic surface charge.

This (-) electrostatic surface charge is created by building a Capacitor within the protected structure. A capacitor is an electrical component used to store a charge, consisting of two conducting surfaces separated by a nonconductive dielectric. The CouplerTec system consists of two components that we use to build our Capacitor within the protected structure.

The first component is our CouplerTec Electronic Module which is connected to a 12V power source, either a 12V Battery or 12V power pack plugged into mains power (mainly used for static structures).

The module draws a very small charge from the power source and transforms this into an output voltage of 400V (Peak) and from 200V (RMS typical), strong enough to easily be read on a volt/multi-meter. The CouplerTec module generates frequency signals in the 200KHz range. The voltage and frequency created by the module is then transferred to the second component, which is our Capacitive Coupler.

The Capacitive Coupler is a conductive plate which is affixed directly onto the painted surface of the structure using a high bond adhesive. The Capacitive Coupler, when charged by the voltage now acts as the positive plate’ of the Capacitor that we are building. The frequency applied to the Capacitive Coupler combined with Capacitance induces the electrostatic charge to the metal surface of the structure. This then makes the structure act as the negative plate of the Capacitor. Electrons are accumulated between the Positive and Negative plates of the Capacitor. The frequency which induced the charge also disperses these electrons across the surface of the structure.

The structures paint work becomes the ‘dielectric’ which in turn will hold the electrons on the metal surface and stop them from flowing away. Should a protected structure’s paintwork become compromised (e.g. stone chip or scratch) resulting in exposed bare metal, then over time a very thin layer of surface rust may eventually form on the bare metal surface. This layer of surface rust takes the place of the paint work and becomes the dielectric, which in turn holds the charge static. The surface rust will turn a dark brown colour, this is non-active ferric oxide and will not progress any further.

Disclaimer: Information contained in this flyer is subject to change with out notice & is intended as general information only. Products illustrated at time of publishing are correct, however JAWA are constantly improving product design & function which may slightly alter the appearance of the camper. Please check with a JAWA representative prior to purchase to ensure current specifications will be suitable. JAWA do not take any responsibility for the reliance on such information. All rights reserved.