Skip to Content

How To Patch A Rust Hole In A Truck Bed

Disclosure: We may get commissions for purchases made through links in this post.

After giving you years of service, it may be time for your truck bed to receive some TLC. This is especially true if rust has created a hole in the truck bed. But how do you fix rust in the truck's bed? Let's take a look at how to do this below.

In order to fix a rust hole in a truck bed, follow these steps:

  1. Prep the rust spot.
  2. Remove rust with a wire brush.
  3. Sand remaining rust.
  4. Clean the dust from the area.
  5. Use body filler to patch hole(s).
  6. Sand the body filler.
  7. Add coats of primer.
  8. Add coats of body paint.
  9. Apply a clear coat.
  10. Let it cure.

As you can see, fixing a rust spot can be done on your own. But before you start, let's take a closer look at what goes into this project step by step. In addition, we will answer other frequently asked questions about rust and trucks, so keep reading!

A black single cab Ford F150 parked at Walmart, How To Patch A Rust Hole In A Truck Bed

Fixing Rust Holes In A Truck Bed

Rust is a common problem that affects all sorts of vehicles. It can occur anywhere on the vehicle, but it is most commonly found on the body, door hinges, wheel wells, and under the hood. There are many reasons why rust forms on vehicles, but the most common are:

  • Exposure to rain or snow.
  • Salt used to de-ice roads.
  • Rust from other parts of the vehicle transferred to new areas.
  • Accidental damage such as a scratch or dent.

Read more: Why Do Cars Rust? (And How To Fix That)

No matter what the cause, rust should be fixed as soon as possible. Not only is it unsightly but it can also lead to further damage and costly repairs. So, if you're wondering how to fix rust on a truck, you're in the right place. Below we'll walk you through the process step by step.

1. Prep The Rust Spots

Before you can start fixing the rust, you need to prepare the area. This means covering the unrusted parts of the vehicle with masking tape or a cloth to protect them from the paint and primer.

2. Remove Rust With A Wire Brush

Once the area is prepped, use a wire brush to remove all of the rust. This may take some time, but it's important to get all of the rust off so that the body filler will adhere properly.

Click here to see this wire brush set on Amazon.

3. Sand Remaining Rust

Next, sand the area to remove any remaining rust and make sure it's smooth. Again, be careful not to sand too much of the surrounding paint or primer.

4. Clean The Dust From The Area

Use a damp cloth to clean off all of the dust and debris from the area. This will help ensure a good bond between the body filler and the surface.

5. Use Body Filler To Patch Hole(s)

Now it's time to use the body filler to patch the hole(s). Body filler is a chemical compound that hardens when it dries. It's available in a variety of colors so that you can match it to the surrounding paint.

Click here to see this body filler on Amazon.

To apply the body filler, first, mix it according to the manufacturer's instructions. Then, use a putty knife to apply it to the hole(s). Be sure to smooth it out so that it's flush with the surface.

Click here to see this putty knife on Amazon.

6. Sand The Body Filler

Once the body filler has dried, sand it until it's smooth. This will help to ensure a good bond and a smooth finish.

7. Add Coats Of Primer

Now that the body filler is all fixed up, it's time to add some primer. Add a couple of layers of primer and give it time to dry (4 hours). Once the primer is dry, take sandpaper to it to make sure it's nice and smooth.

8. Add Coats Of Paint

Now it's time for the final step: adding paint. You can use a brush or a spray gun to apply the paint. Be sure to add several coats, letting each one dry completely before adding the next.

9. Apply A Clear Coat

Finish up the project by applying a clear coat. This will help to protect the finish and keep it looking shiny and new.

10. Let It Cure

Once you're done, let the project cure for at least 24 hours before driving the vehicle. If you have a garage or a carport, it's a good idea to park the truck undercover so that it doesn't get wet.

As you can see, fixing the rust on your truck is a fairly simple process. You can repair those unsightly rust spots and restore your truck to its former glory by following these steps. So what are you waiting for? Get started today!

Read more: Do Ford Trucks Rust? [Everything You Need To Know]

Is It Worth Fixing The Rust On A Truck Bed?

This depends on the severity of the rust. However, it's definitely worth fixing if the rust is only a surface issue and can be fixed with a wire brush and some body filler. It will make your truck look better, but it will also help prevent further damage.

However, suppose the rust has gone through the metal and affects the truck bed's structural integrity. In that case, it's probably not worth repairing, and it might be time to consider replacing the bed altogether.

You also need to determine what the current value of your truck is. If the truck is only worth a few thousand dollars, then it might not be worth sinking a lot of money into repairs.

Rusted car bed filled with scratches and dents

However, if the truck is worth more than that, then it's probably worth fixing the rust so that you can keep it in good condition and possibly even increase its value.

In addition, how many miles are on the truck? If the truck has a lot of miles, it might not be worth fixing since it probably won't last much longer anyway.

Ultimately, the decision of whether or not to fix the rust on your truck is up to you. Consider all of the factors involved and make the decision that's best for you.

Is Rust Expensive To Repair?

A truck bed filled with rust and dents

The cost to repair rust spots depends on the severity of the rust. For example, if the rust is only on the surface and can be fixed with a wire brush and some body filler, then it will be less expensive to repair.

If the rust has gone through the metal and is affecting the structural integrity of the truck bed, then it will be more expensive to repair since you might need to replace the bed altogether.

Here are some general guidelines for the cost of repairing rust:

  • For light surface rust: $50-$100
  • For moderate rust: $100-$300
  • For severe rust: $300-$1,000+

These prices are just estimates and will vary depending on the severity of the rust and the extent of the repair.

When budgeting for rust repair, it's also important to factor in the cost of primer, paint, and clear coat. These will be additional costs that need to be considered when repairing rust spots on your truck.

To get an accurate estimate of the cost to repair rust spots on your truck, it's best to consult with a professional. They will be able to assess the severity of the rust and give you an accurate estimate of the cost of repairs.

How Can I Prevent Rust From Happening In The First Place?

The best way to prevent rust is to keep your truck clean and free of dirt and debris. Washing your truck regularly will help to remove any salt or chemicals that could cause rust.

It's also a good idea to wax your truck regularly. This will create a barrier that will help to protect the paint and prevent rust from forming.

If you live in an area that is prone to snow and ice, then it's important to take extra care of your truck in the winter. Make sure to brush off any snow or ice before it has a chance to cause damage.

In addition, you can use a rust inhibitor to help protect your truck from rust. Again, there are a number of different products available on the market, so you can choose the one that best suits your needs.

Read more: How To Protect The Underside Of A Car From Rust

Last but not least, check to see where the truck came from before making a purchase. You can check this by using CarFax.

If the truck came from an area that is prone to rust, such as Minnesota or Hawaii, where salt on the roads or in the air is common, then there is a greater chance that it will develop rust in the future.

A blue truck at a car wash

How Do I Know If My Truck Has Rust?

If you're not sure if your truck has rust, there are a few things you can look for.

A huge GMC Sierra 1500 at a parking lot

One common sign of rust is when the paint bubbles, peels, or chips away. This usually happens in areas where there is corrosion or water damage which causes oxidation. Another sign of rust is when the metal starts to flake or chip away.

If you see any of these signs, then it's likely that your truck has rust and needs repairs.

In Closing

A black single cab Ford F150 parked at Walmart

Overall, if your truck still has life left in it, it's probably worth fixing the rust to keep it in good condition and possibly even increase its value.

Just be sure to factor in the cost of repairs when budgeting for your truck. Letting the rust go too long without repairs can cause extensive damage that will be much more expensive to fix.