The Salt Air Problem
Perth's coastal suburbs (Scarborough, Cottesloe, Hillarys, Rockingham) expose vehicles to salt-laden air that accelerates rust and corrosion, particularly on undercarriage components, brake rotors, and chrome trim.
Prevention Strategies
Rinse the undercarriage monthly with a high-pressure washer. Apply an anti-corrosion spray (Waxoyl, Lanolin) to the undercarriage annually. Keep paint protected with regular waxing or ceramic coating. Park in a garage whenever possible.
Watch Points
Brake rotors will show surface rust after just a day or two in coastal areas — this is normal and clears with driving. Monitor exhaust system, suspension components, and trailer hitches for developing corrosion.
Professional Undercarriage Protection
A professional undercoating treatment ($200-500) creates a barrier against salt and moisture. Recommended for vehicles parked within 5km of the coast, especially if not garaged.