How to Fix Rust Hole on a Car

If your car has a rust hole, don’t panic! Rust is caused by exposure to oxygen and moisture, which causes iron to oxidize. This process is accelerated in the presence of salt, so cars that are driven in areas with salty roads are more susceptible to rusting. Once rust starts to form, it will continue to spread unless it’s treated.

How Do You Repair Rust Holes on a Car?

If you have a rust hole on your car, there are a few things you can do to fix it.

  • If you’re dealing with a minor rust hole, you can repair it yourself with a little time and effort. Larger holes will require more work, and you may need to consult a professional. Here’s what you need to know about repairing rust holes on your car.

Minor rust holes can be repaired with a few different methods. One is to use an epoxy filler, which is available at most auto parts stores. This type of filler bonds well with metal and can be sanded smooth once it dries.

  • Another option is to use a fiberglass patch kit, which comes with everything you need to fill the hole and create a smooth surface. Again, this can be sanded once it dries. Larger rust holes will require more work to repair properly.

You’ll likely need to remove all of the surrounding paint down to bare metal before beginning any repairs. Once the area is prepped, you can use either an epoxy filler or a fiberglass patch kit (or both) to fill the hole completely. After the filler has dried, you’ll need to sand it smooth before applying new paint .

If done correctly , repairing larger rust holes isn’t too difficult and will extend the life of your car significantly.

  1. sand the area around the rust hole with a medium-grit sandpaper to remove any loose paint or rust
  2. wipe the area down with a clean cloth to remove any dust and debris created from sanding
  3. apply a thin layer of automotive body filler to the rust hole, using a putty knife
  4. allow the body filler to dry for the recommended time listed on the product packaging
  5. sand the dried body filler until it is level with the surrounding area, using a fine-grit sandpaper
  6. apply a coat of primer over the repaired area and allow it to dry completely
  7. 7 once the primer is dry, apply a topcoat of paint in your desired color

How to Repair Large Hole in Car Body

If you have a large hole in your car body, it can be a daunting task to repair. But don’t worry, we’re here to help! Here are some tips on how to repair a large hole in your car body:

  1. Remove any loose debris from the hole. This will make it easier to work with and will prevent further damage.
  2. If the edges of the hole are jagged, use a file or sandpaper to smooth them out. This will help create a clean surface for patching.
  3. Cut a piece of sheet metal that is slightly larger than the hole. This will be used as the patch.
  4. 4. Place the sheet metal over the hole and secure it in place with rivets or welds. Make sure that the patch is flush with the surrounding area so that it isn’t noticeable.
  5. Prime and paint the patched area so that it matches the rest of your car’s paint job . And that’s it ! You’ve successfully repaired a large hole in your car body .
How to Fix Rust Hole on a Car


What to Use to Fill in Rust Holes?

Rust holes can be a pain to deal with. If you have a car with rust holes, you may be wondering what the best way to fill them is. There are a few different options available, and the best option for you will depend on the severity of the rust hole and your budget.

One option is to use body filler. This is a putty-like substance that can be used to fill in small rust holes. It is relatively inexpensive and easy to use, but it does not always provide a long-lasting repair.

For larger rust holes, or for more severe corrosion, another option is to use weld-through primer. This primer contains zinc which helps to prevent future rusting. It can be applied directly over the rust hole and then welding can be performed as normal.

Weld-through primer is more expensive than body filler, but it will provide a stronger repair that will last longer. If you have a large rust hole that needs repaired, your best bet is to take it to a professional auto body shop. They will have the tools and experience necessary to properly repair the hole and restore your car’s appearance (and value).

How Much Does It Cost to Fix Rust Holes on a Car?

If you’re noticing rust holes on your car, it’s important to take care of them as soon as possible. Rust can spread quickly and cause serious damage to your vehicle if left untreated. The good news is that there are a number of ways to fix rust holes, and the cost will vary depending on the method you choose.

One option is to use a rust converter, which will convert the rust into a protective coating. This can be applied with a brush or sprayer and typically costs between $10 and $20 per quart. Another option is to weld the hole closed.

This requires more work but will provide a stronger repair. The cost of welding will depend on the severity of the hole and whether you hire a professional or do it yourself. If you do it yourself, you’ll need to purchase a welder, which can cost around $200.

Professional welding services will likely cost more. You could also fill the hole with an epoxy filler, which is available at most auto parts stores for around $30 per tube. This is a simple repair that anyone can do, but it’s not as strong as welding and may not last as long.

Finally, you could replace the entire panel that has the rust hole. This is usually only necessary if the hole is large or if there is significant rust damage surrounding it.

How Do You Fix Rusty Holes in Metal?

If you have a rusty hole in your metal, there are a few ways you can fix it. First, you will need to clean the area around the hole with a wire brush or sandpaper. This will help prepare the surface for repair.

Next, you will need to apply a rust converter to the area. This will help stop the spread of rust and also provide a protective coating. Once the converter has dried, you can then apply a primer and paint to the area.


There are a few ways you can fix it yourself. With a little bit of effort, you can fix that rust hole and keep your car looking great!