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How do you remove salt corrosion from a car?

Published in Car Maintenance 3 mins read

Removing salt corrosion from a car involves neutralizing the salt and cleaning the affected areas. Here's a step-by-step guide:

1. Rinse the Car Thoroughly:

  • Begin by rinsing the entire car with clean water, ideally using a pressure washer if available. This initial rinse removes loose salt and debris from the surface. Pay special attention to the undercarriage, wheel wells, and areas where salt tends to accumulate.

2. Prepare a Cleaning Solution:

  • The most effective and readily available cleaning solution is a mixture of equal parts warm water and white vinegar. The vinegar helps to neutralize the salt.

3. Apply the Cleaning Solution:

  • Spray the vinegar solution onto the affected areas.
  • Alternatively, soak a clean cloth or sponge in the solution and rub it onto the salty areas.
  • Ensure the solution makes contact with all areas where salt corrosion is visible or suspected.

4. Scrub Gently:

  • Use a soft-bristled brush or sponge to gently scrub the affected areas. This helps to loosen the salt and bring it to the surface. Avoid using abrasive materials that could scratch the paint.
  • For the undercarriage, a long-handled brush or undercarriage cleaner attachment for a pressure washer can be very helpful.

5. Rinse Again:

  • Thoroughly rinse the car with clean water to remove the vinegar solution and any remaining salt residue.

6. Wash the Car with Soap:

  • Wash the entire car with a quality car wash soap and water. This step removes any remaining dirt and grime and helps protect the paint.

7. Wax the Car:

  • Apply a coat of wax to the car's paint. Wax provides a protective barrier against salt and other environmental contaminants.

8. Address the Undercarriage:

  • The undercarriage is especially prone to corrosion. Consider using a rust inhibitor or undercoating specifically designed for automotive use. Follow the product instructions carefully.

9. Regular Cleaning:

  • The most important thing is to clean your car regularly during periods when salt is used on roads. The more often you clean it, the less chance salt has to cause corrosion.

Important Considerations:

  • Safety: Wear gloves and eye protection when working with cleaning solutions.
  • Ventilation: Work in a well-ventilated area.
  • Spot Test: Before applying any cleaning solution to the entire car, test it on an inconspicuous area to ensure it doesn't damage the paint.
  • Professional Cleaning: For severe corrosion, consider seeking professional detailing services. They have specialized equipment and products for effectively removing corrosion.

By following these steps, you can effectively remove salt corrosion from your car and help protect it from future damage.

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