how to fix rust on a car

That dreaded bubble under the paint or flaky orange spot on your car’s fender is more than just an eyesore. Rust is like a silent invader, slowly eating away at your vehicle’s body and, if left unchecked, can lead to serious structural damage and costly repairs. The good news is that with a little patience and the right approach, you can tackle this problem yourself and protect your car’s value. Learning how to fix rust on a car is a valuable skill for any car owner.

Assessing the Rust Damage First

Before you grab your tools, take a close look at the rust spot. Is it just on the surface, creating a rough texture? Or has it eaten completely through the metal, leaving a hole? Surface rust is the easiest to fix, while holes require a bit more work with patch panels and body filler. For this guide, we’ll focus on the more common surface and scale rust that hasn’t penetrated through the panel.

Your Step-by-Step Guide on How to Fix Rust on a Car

Fixing rust is a process of removal, protection, and repainting. You’ll need safety glasses, a mask, sandpaper (in various grits from coarse to fine), a wire brush, rust converter, primer, automotive paint, and clear coat.

Start by thoroughly cleaning the area with soap and water. Once dry, use the wire brush and coarse-grit sandpaper to scrub away all the loose rust and paint until you’re left with bare, solid metal. It’s crucial to remove every speck of rust you can see. For any stubborn rust stains, apply a rust converter, which turns the remaining iron oxide into a stable, paintable surface.

Finishing the Repair for a Lasting Result

After the metal is clean and treated, wipe it down with a wax and grease remover. Apply a few light coats of an automotive primer designed to prevent rust, allowing each coat to dry as directed. Once the primer is dry, lightly sand it with fine-grit sandpaper until it’s smooth to the touch. Now you’re ready for color. Spray your automotive paint in several thin, even coats, followed by a few coats of clear coat to seal and protect the new paint. Wet sanding and polishing can help blend the repair into the surrounding area for a seamless finish.

While it requires some effort, fixing rust yourself is incredibly rewarding. You’re not just improving your car’s appearance; you’re actively preserving it for years to come. With the damaged spot properly sealed and protected, you can drive with confidence, knowing you’ve stopped the rust in its tracks.