Rust is every car owner’s worst nightmare—not only does it ruin your vehicle’s appearance, but it also weakens the structure and can lead to costly repairs. Whether you drive a brand-new car or an older model, preventing rust is crucial to maintaining its value, safety, and longevity.

Here’s everything you need to know about why rust forms, how to prevent it, and what to do if you spot it.

1. What Causes Rust on a Car?

Rust forms when iron, water, and oxygen combine, leading to oxidation. While all cars have protective coatings, several factors can speed up rust formation:

🚗 Exposure to road salt – Common in coastal areas and winter driving, salt accelerates rusting.
🚗 Scratches and chips – Damaged paint exposes metal to moisture.
🚗 High humidity and rain – Excess moisture increases the likelihood of rust.
🚗 Neglected car washes – Dirt and debris trap moisture against the car’s body.

2. How to Prevent Rust on Your Vehicle

🛑 Regular Washing & Waxing
Dirt, salt, and debris contribute to corrosion. Wash your car at least once a month, focusing on:
✔️ The undercarriage (where salt and dirt accumulate)
✔️ Wheel wells and door sills
✔️ Any scratches or paint chips

Waxing adds a protective layer that helps keep moisture off the metal.

🛑 Apply Rust-Proofing Treatments
If you live in humid or coastal areas, consider professional rust-proofing sprays. There are two common options:
✔️ Oil-based rustproofing – Creates a barrier to prevent moisture from reaching the metal.
✔️ Electronic rust inhibitors – Some newer systems claim to reduce oxidation, though effectiveness varies.

🛑 Fix Paint Chips and Scratches Immediately
A small scratch can quickly turn into a rusted hole if left untreated.
🔧 Use touch-up paint for minor scratches.
🔧 For larger damage, visit a professional body shop (like Melbourne Collision Repair Centre) to restore the paint.

🛑 Keep the Interior Dry
Excess moisture inside your car can lead to rusting from the inside out.
✔️ Check for leaks in the sunroof, windows, or doors.
✔️ Use rubber floor mats to prevent wet carpets.
✔️ Avoid leaving wet towels or clothes inside your car.

🛑 Inspect and Maintain Drain Holes
Many vehicles have small drain holes in the doors, hood, and trunk to allow water to escape.
🔎 Check them regularly and remove dirt or debris to prevent trapped moisture.

3. What to Do If You Spot Rust?

🚨 Surface Rust: Light rust can often be sanded and repainted before it spreads.
🚨 Scale Rust: If rust has penetrated beyond the surface, you’ll need professional repairs.
🚨 Structural Rust: Severe rust (like on the car’s frame) can compromise safety and must be fixed immediately.

If you notice rust, act fast! The longer you wait, the harder it will be to repair.

Trust the Experts at Melbourne Collision Repair Centre

At Melbourne Collision Repair Centre, we specialize in rust prevention, body repairs, and paint restoration. If you have scratches, paint chips, or rust spots, our team can restore your vehicle to like-new condition.

💡 Don’t let rust ruin your car—book an appointment with us today!