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Got Questions? We've Got Answers!

Welcome to our FAQ’s page where you will find answers to the most commonly asked questions.

  • What services do you offer?

    • Chemical Rustproofing
    • Electronic Rustproofing
    • After Beach Wash
    • Steam Cleans & Degreasing

    Please see our Services page for more information on each of these services.

  • Is the electronic system environmentally friendly?

    Yes! Absolutely, the electronic system pumps a slightly greater amount of electrons into the car body than it loses and this is in no way damaging to the environment or the vehicle.

    This ensures oxygen can never combine with iron to form rust. The loss of electrons in paint is also the cause of “paint oxidisation” so the CouplerTec™ system protects your paint work as a bonus.

    The electronic system is made from solid state parts encased in resin so it lasts for years and years and is very inexpensive over the life of your vehicle.

  • How Much Does it Cost?

    It really depends on the vehicle and the service being performed, however this is extremely cheap in comparison to having your vehicle degrade due to rust or having to fix rust once it has taken hold. 

    If you need a specific quote feel free to phone, or email us with your vehicle type and a little background on how you use the vehicle; ie.. Beach driving, city driving, mining work, etc.

    If you take advantage of our social networking coupons that frequently come around you can save. You can find and like our Facebook page by clicking the below button to stay up to date with our posts.


  • How long does it take?

    The vehicle is required overnight.

    The underbody and engine bay of the vehicle is first thoroughly cleaned, and “stripped out”. This needs to be completed before we can fit any electronic units to the vehicle, to ensure that the current is not interrupted by any debris or physical matter attached to the vehicle.

    Unfortunately, we are unable to give exact times as to when your vehicle will be ready for collection, because each vehicle is different, and some take longer than others to fit. However, we do work on a general rule that if you drop it off in the morning, it will definitely be ready for collection the next day, before 4:30pm.

    All vehicles are stored in secure sheds, and the keys are securely stored elsewhere on site.

  • What Payment Systems Do You Take?

    We accept cash, cheque, and have EFTPOS facilities. You are also able to pay by credit card over the phone. We accept Visa and Mastercard.

  • Is the electronic system covered by a guarantee or warranty?

    CouplerTec’s 10 year Corrosion Warranty is applicable from the date of the final day of the month of the vehicle’s manufacture for a period of Ten (10) years and is also conditional upon no pre-existing rust or corrosion damage and no indication of any impending rust damage or evidence thereof. For vehicles over 10 years of age a 5 year product warranty (will cover the rustproofing unit against fault) applies.

    Example: A vehicle manufactured in Oct 2011 will have a corrosion warranty through to October 31, 2021.

    ONLY the vehicle body is covered by this warranty. The warranty does not cover – Engine, Ancillary and Auxiliary Fittings and Power Drive Train, Exhaust System, Roof Racks, Bull Bars, Tow Bars, Non Standard Fittings, Brake System, Suspension, Heating System, Cooling System, and all fittings and fastenings associated with these components or any part that is insulated from the vehicles main body. For the CouplerTec system to reach these parts there must be a direct current to them from the car body, as all vehicles are manufactured differently we can not fully guarantee these parts.

    Rust damage that has resulted from battery acid, a collision, accident whether deliberately or accidental is also not covered.

    CouplerTec’s Corrosion Warranty will be voided if the system is:

    • not installed by an authorised CouplerTec dealer. (Downey Street Rustproofing is an authorised CouplerTec dealer)
    • not checked and authorised as being operational and in working order by a CouplerTec authorised dealer within Two (2) weeks (either side) of the installation anniversary date.
    • not applicable to the vehicle it was intended – i.e. 4WD System for a 4WD Vehicle.
    • disconnected, or damaged (internally or externally) as a result of accident (intentional or otherwise).
    • fitted to a Commercial Vehicle.

    The CouplerTec microprocessor and system is made from solid state parts (not moving mechanical parts) and encased in resin. This has an indefinite lifespan, we haven’t had one get old and die yet but when we do we will let you know.

  • How can I contact you?

    Phone us on (07) 3265 7574

    Come and see us at 33 Granite St, Geebung

    Use the contact form page.

  • Where is the business located?

    We are located on Brisbane’s northside, in Geebung.

    Our location is easy to get to by major roads (including Sandgate Rd) and is within walking distance of Geebung train station, and buses.

    Please see  our contact page for a map, and directions.

  • Can electronic rustproofing void new car warranties?

    Absolutely NOT. Capacitive Coupling Technology can not harm or interfere with anything. There are no reasons why it should or could void new car warranties.

  • Are all electronic rustproofing systems the same?

    No. CouplerTec’s unique international patented Capacitive Coupling Technology has a proven record of performance that no other company can copy, because it is patented.

    Here in Australia there are a number of different types of  Electronic Rustproofing devices available on the retail market.  Some are cathodic or impressed current and are not suitable to be used in motor vehicles. 

    CouplerTec released the latest advancement in capacitive coupling technology in February 2005. This upgraded computerised technology has separated CouplerTec’s systems from the rest.

  • Does electronic rustproofing interfere with on board computers?

    No. CouplerTec complies with Australian Standards for Electromagnetic Compatibility (EMC AS/NZS 4251.1) which means it will not interfere with on-board computers, or other electronic devices fitted within your vehicle.

  • Will It Flatten My Battery?

    No. CouplerTec systems draw less power from the battery than a dashboard clock, approx. 20 – 40 mA.

  • How Long Will It Last?

    The electronic rustproofing system’s life is indefinite, the electronics are solid state (no moving parts) and the electronic board is totally encapsulated in an epoxy resin that makes it completely sealed.

Downey Street Rustproofing would like to thank all our customers for their continued support over the last few trying weeks, with the Coronavirus (COVID 19) dictating or way of life,  we are doing everything within our power to ensure the safety of our customers and staff.

We understand that safety and hygiene are of the utmost importance right now, and to achieve this we have implemented the following:

  • - Upon arrival and departure of your vehicle the following is sanitised with hospital grade disinfectant.
  • - Steering Wheel (includes indicator and wiper arms)
  • - engine start button
  • - Centre console area
  • - Rear vision mirror casing
  • - All internal plastic door trims and door handle area
  • - External door handles
  • - All car keys/remotes wiped prior to being returned
  • - Use of single use car seat covers
  • - Use single use floor mats