
How to Fix Minor Rust Spots on Your Car
- Gather materials
- Examine the rusting area. First, confirm that the rust damage is indeed minor. ...
- Wash. Use a sponge to clean the entire area with a mild detergent. Rinse with water and dry completely with a microfiber towel.
- Sand. Apply painter’s tape to frame the affected area. Use 50-grit sandpaper to sand off the rust (and paint) until the underlying bare metal is exposed.
- Apply rust inhibitor. To prevent more rust from forming on your car’s surface, spray the exposed metal surface with a rust inhibitor.
- Apply primer. Spray any brand of automobile-specific primer onto the affected area until it is evenly covered. Let it air dry for at least 30 minutes.
- Apply paint. If you don’t know your vehicle’s exact paint color, the paint color code is usually located inside the glove box on the driver’s side door jamb under ...
- Apply the clear coat. Spray the clear coat around the area and let it air dry until the surface is shiny and smooth. ...
What can I do to get rid of car rust?
How to Remove Rust from Your Car
- This project is going to require you to use safety googles. Always make sure your car is parked on a flat, level service.
- Isolate the section you’ll be working on, the same as if you were painting the vehicle. You’ll want to make sure the non-rusted sections are protected.
- Start low and work your way up. ...
How to stop rust from spreading on your car?
Thankfully, there are multiple ways you can prevent the rust damage that salt causes:
- Wax your car before winter. Waxing your car won't work well in low temperatures, as the wax becomes incredibly difficult to spread on the car as the temperature drops. ...
- Wash frequently. ...
- Avoid driving behind snow plows. ...
- Avoid deep puddles. ...
- Consider an undercoating. ...
How to clean your car to prevent rust?
To prevent rust on your car, wash it every few weeks with soap, water, and baking soda to neutralize road salt and prevent sediment from wearing through the protective paints. If you can, jack up your car and spray off the undercarriage with a hose to get road salt off of it.
How to save your car from rust?
- Wash the entire area with automotive soap
- Mask off the work area
- Use the small hammer and scraper to break up heavy scale
- Use the hand wire brush or wire cup on the grinder to remove deeper scale
- Switch to grinding discs or sandpaper until you expose the metal
- Use the finer sandpaper until the rust is almost gone
- Wash with a degreasing agent or soap

What causes tiny rust spots on car?
The rust is due to very small pieces of metal shavings that have embedded themselves in your car's paint. These metal shavings are called rail head dust because they come from metal shavings that are a result of train car wheels running across railroad tracks.
How do you stop a small rust spot from spreading?
To treat this type of damage, simply corner off the small area with some masking tape so you don't damage the rest of the paint. Then wash the area to remove any particulate matter. Once the spot is dry, rub the area with some sandpaper to remove the rust.
Does WD-40 Remove rust?
WD-40 can help remove rust from metals like iron, chrome, and stainless steel without further damaging the surface of the metal or removing the paint. The Multi-Use Product is great for loosening and removing excessive surface rust.
Can you stop rust once it starts?
Yes, paint can stop rust. Cars, knives, beams, and many tools are all coated with paint to inhibit rust. However, painting over rust is a different story and requires a little more thought.
How can you prevent rust from getting worse?
The best way to prevent rust from getting worse is to tackle the rust currently on your car. You should use an assortment of rust removers, sanders, fillers, primers, and colored paints to fix the area. Once the rust is removed and masked, it's much less likely that the rust will spread to the rest of your car.
How do you get rid of rust spots?
Mix water and baking soda into a thick paste and spread the paste all over the metal, making sure that rusty spots are well covered. Let the paste sit on the object for an hour or so. Use steel wool or a wire brush to scour the object and remove the rust. Rinse the paste off with water and dry thoroughly.
What is the best rust inhibitor?
Editor's Pick: Rust Converter Ultra. Rust Converter Ultra is a highly rated, affordable, and easy-to-use solution to existing automotive rust problems. ... CRC White Lithium Grease Spray. ... WD-40 Specialist Long Term Corrosion Inhibitor. ... Dupli-Color Exact-Match Scratch Fix. ... Fluid Film Protectant and Lubricant.
What causes rust to spread?
If you let coating deteriorate over time it can “creep” but it is the failing of the coating that allows the rust to spread. If you want to correct or stop rust “creep” you need to remove the rust or seal it up so water and oxygen can't get to it and allow it to work.
How to fix rust spots on truck?
To ensure your truck or car doesn’t deteriorate, it’s important to fix surface rust spots as soon as possible. Start by preparing and cleaning the area. Then, sand rust out with sandpaper or a grinding disk until you see clean metal. After you’ve removed the rust, protect the surface from future corrosion by using Zero Rust paint as a base layer. This product is designed to seal the affected area from oxygen, providing superior rust protection for whatever topcoat paint you apply. Once dried, you can apply an automotive paint to blend the repaired spot into the rest of your paint color.
How long to wait to wax a car after zero rust?
Buff the Finish: Buff the treated area with a microfiber cloth or a lint-free cloth. Wait for a Wax: Don’t wax your vehicle for at least 30 days. Putting off washing and waxing allows the finish to completely cure.
How to fix small rust spots on car?
How to Fix Small Rust Spots on a Car or Truck. The process to repair small rust spots depends on how far the rust has penetrated into the metal. Surface rust is a straightforward process that is similar to fixing a scratch or paint defect. Scale rust, which goes deeper, requires more effort to get rid of on your vehicle.
How does rust damage a car?
Rust can damage your vehicle in a variety of ways, and the problem will quickly progress if you wait too long to correct it. Over time, minor surface rust can penetrate deeper into the metal. Even worse, what looks to be minor surface rust may just be the tip of the iceberg, as it’s very common for rust to start from the inside of a panel and work its way outward. Ignore rust spots long enough, and you could find yourself with a vehicle filled with flaky rust holes.
How to get rid of rust on car?
Wipe off Dust: Use a lint-free cloth or tack cloth to wipe away any dust from the surface. Apply Zero-Rust or Other Automotive Primer and Paint: If you use a rust-prevention paint like Zero Rust, you don’t need a separate primer. It should dry to the touch in 30 minutes, depending on temperature and humidity.
How to fill depressions in metal?
Fill in Depressions: Use body filler to fill in depressions in the pitted metal. Sand the Surface Smooth: Use sandpaper and a sanding block to smooth out the body filler, metal and surrounding paint edges. Start with 180 grit and work your way to 600 grit.
How to clean rust off of a rusty car?
Use 12 ounces of product per gallon of water. Fill a spray bottle with this solution and spray the affected area . Rinse Prep Powder off: Use a rag and clear water to wipe off the rust conditioning powder solution. Fill in Depressions: Use body filler to fill in depressions in the pitted metal.
Step 1: Prepare the car
To mix the touch-up paint into the good portions, you need to tape the leading edge of the poly sheeting a few feet away from the repair.
Step 2: Make a sanded area bigger and clean the car
Make the sanded area bigger so you can feather the edges. Then, Feather the margins of the repair area with 120-grit sandpaper. Usually, 220 grit is used to finish the feathering.
Step 3: Wipe away dust
Wipe away any remaining dust or lint with a lint-free cloth before applying the paint manufacturer’s prep solvent.
Step 4: Apply epoxy primer
Apply epoxy primer first, followed by filler primer. Filler primer should be sprayed in thicker applications to cover the entire restoration area. Blend the can into the surrounding painted area by moving it slightly away from the surface. Use a self-etching epoxy primer as your initial layer to ensure a solid connection to bare metal.
Step 5: Apply lacquer filler
Wet 1,000-grit sandpaper is used to grind the epoxy primer. Allow drying after washing with clean water. Wipe the cured epoxy primer clean with a lint-free cloth before applying two to three coats of lacquer filler primer, leaving time for each application to dry. Allow at least one hour for the lacquer primer to dry to the touch before sanding.
Step 6: Sand the whole repair
Use 320-grit sandpaper, sand drips, and sags, then sand the entire repair area to a smooth finish. Smooth the primer and feather the edges with wet 600-grit sandpaper. In the end, sand the whole repair, including the blended areas, with wet 1,000-grit sandpaper.
Step 7: Spray the repaired area
Spray the repaired area while holding the spray can about 12 inches away from the surface. Begin at the bottom of the repair and apply the color coat in left-to-right rows, roughly one-third overlapping each pass. In two to three coats, gradually work the color into the repair and surrounding areas.
How long does it take for epoxy primer to dry?
Apply two to three heavier coats of lacquer filler primer, allowing drying time between each coat. Let the lacquer primer dry until it's dry to the touch—at least one hour—before sanding.
How to repair rust spots on metal?
Sand through the rust spots down to the bare metal, using 40-grit sandpaper. Enlarge the sanded area so you'll have space to feather the edges. Switch to 120-grit sandpaper to feather the edges of the repair area. Complete the feathering with 220 grit. Use a tack rag to remove particles from the unmasked area. Step 4.
How to fill pits in metal?
If the rust has created pits in the metal, you can fill them now with body fill er or wait until the epoxy primer dries and apply multiple coats of filler primer. Clean the entire unmasked area with a grease-cutting dishwashing detergent, followed by clean rinse water. Let it dry.
How long to let clear coat dry before buffing?
Let the clear coat dry for several hours before driving the vehicle and at least 48 hours before buffing. Using an old cotton T-shirt or microfiber cloth and buffing compound, hand-buff the repaired area.
How long does it take for a base coat to dry?
Allow about 10 to 15 minutes between coats. Allow the base coat to dry, until it's dry to the touch, at least 60 minutes. Pro tip: Don't sand the base coat (especially metallic colors) unless you've created sags. In that case, sand lightly and then respray the touched-up areas.
How long to wait between coats of paint on a drywall wall?
Build the color slowly into the repair and surrounding areas in two to three coats. Allow about 10 to 15 minutes between coats.
Is it hard to fix rust on a car?
However, if you deal with rust early, you can stop it from spreading and squeeze a few extra years out of your vehicle. Rust repair isn’t hard, but it is time-consuming (mostly waiting for primer and paint to dry between steps). Plan to spend about $100 on supplies like sandpaper, primer, ...
