How Do You Waterproof a Truck Bed Cover?

How Do You Waterproof a Truck Bed Cover?

Truck bed covers are an essential accessory for any pickup truck owner, as they provide protection for cargo and can keep thieves at bay. However, standard truck bed covers may not be enough to keep out all of the elements, so it’s important to waterproof your truck bed cover to ensure that it is securely protecting your belongings. Here are some steps you can take to waterproof your truck bed cover.

Step 1: Clean the Truck Bed Cover with Soap and Water
The first step towards waterproofing your truck bed cover is to clean it with a mixture of soap and water. This will help remove any dirt or grime which may be present on the surface of the cover.

You can use a soft brush or cloth to scrub the cover gently until it is clean. Once you have finished cleaning, rinse off the soap and allow the cover to dry before proceeding with any other steps.

Step 2: Apply a Waterproof Spray
Once your truck bed cover is completely dry, you can apply a waterproof spray to further protect it from moisture. There are many different brands available on the market, but make sure that you choose one that is specifically designed for use on truck bed covers. Apply an even coat of spray all over the surface of the cover and allow it to dry according to the instructions on the packaging before using your truck again.

Step 3: Seal Any Gaps or Holes
If there are any gaps or holes in your truck bed cover, then these should also be sealed in order to ensure that no water can enter through them. You can use either silicone rubber sealant or mastic tape to do this job – whichever you feel more comfortable using. Make sure that all of these areas are sealed correctly before you move onto any other steps in this process.

Step 4: Add Extra Protection with a Vinyl Coating
The final step in waterproofing your truck bed cover is adding an extra layer of protection with a vinyl coating. This will help create an additional barrier between your cargo and any moisture that might try to penetrate through your truck bed cover. Make sure that you apply this coating evenly over every inch of the surface and allow it plenty of time to dry before using your truck again.


Waterproofing a truck bed cover is essential for keeping cargo safe from moisture damage, as well as preventing thieves from gaining access inside your vehicle’s cab area. Following these simple steps will help ensure that your truck bed cover remains secure against all kinds of weather conditions and potential intruders alike!

Photo of author

Stephen Dunn