NAPA AUTOPRO

Is Anti-Rust Protection Required?


Finding rust on your vehicle can be a nightmare for any car owner. However, is there any way to prevent it? If you want to keep your vehicle for several years or sell it with added value, consider applying an anti-rust treatment.

What Is Anti-Rust Protection?

Anti-rust protection, also known as rust-proofing, slows down the buildup of rust on your vehicle. Using a combination of chemicals and anti-rust products creates a protective barrier on your car to prevent rust and corrosion from spreading as quickly.

You may hear “rust-proofing” used interchangeably with “undercoating,” but they’re not the same. Rust-proofing focuses on preventing corrosion on the body of your car while undercoating targets the underside. Using a wax or rubber-based composite, undercoating protects the bottom of your car from rust, damage, and rust-accelerating grime from the road (e.g., dirt, salt, ice, debris).

It’s important to protect your car from rust because it can discolour your car and compromise its structural integrity. If left to build up freely, rust can eat through your car’s metal, creating holes and causing the body panels to fall apart. A good rust-proofing treatment will prevent the premature appearance of rust on your vehicle and can help you avoid very costly repairs.

When to Rust-Proof

To maximize your rust prevention, rust-proof your vehicle at least once every two years. Certain conditions can cause rust to form faster on your vehicle. If you deal with a lot of rain, moisture, humidity, and/or snow, you may need to rust-proof your car every year.

Rust prevention solutions adhere best in warm, dry weather, so the ideal time for this task is spring or summer.

Preparing for Rust-Proofing

If you take your car to a specialized shop, they’ll be able to answer the following questions:

  • What kind of anti-rust treatment is recommended for my vehicle?
  • Which product will be used?
  • What is the warranty?
  • What will be done to protect my vehicle’s electrical, plastic, and rubber parts?
  • Are there any environmentally friendly options?

With answers to these questions, you’ll be able to make an informed decision about what kind of product to use and how the technician should apply it.

An expert at one of your local NAPA AUTOPRO will be happy to help.

How to Rust-Proof

If you decide to rust-proof your vehicle yourself, consider the following criteria when picking out your anti-rust product:

  • easy application
  • high coverage and hiding power
  • long-lasting
  • product range
  • eco-friendliness

Once you have the right product, follow these steps:

  1. Thoroughly wash your vehicle.
  2. Remove any existing rust with sandpaper and a wire brush.
  3. Use plastic and tape to cover areas of your vehicle that you don’t want the anti-rust protection to touch (i.e., exhaust pipes, brakes, and drive belts.)
  4. Read the instructions on your rust-proofing product carefully.
  5. Apply the product in smooth, even strokes.
  6. Let the product dry before applying a second coat.

After applying a rust-proofing product, don’t wash your car for at least one week.

Anti-Rust Protection Service Cost

The price of professional rust-proofing will depend on your vehicle and the method used.

Although you can save money doing it yourself, it may be worth paying for professional rust-proofing to make sure it’s done correctly.

Rust Prevention Tips

To further prevent corrosion on your vehicle, follow these tips:

  • Wash your car every two weeks.
  • Wax your car every six months.
  • Keep your car covered, especially during winter.
  • Repair any signs of abrasion or dents as soon as you notice them.

For any further questions about rust-proofing, undercoating, and related topics, visit or call one of our auto experts at your local NAPA AUTOPRO.

Photo courtesy: Shutterstock 2189262439