How To Weatherproof Canvas [FAQs]

How To Weatherproof Canvas

Canvas is a popular material for outdoor furniture, tents, and awnings, but it is susceptible to damage from rain and moisture. Weatherproofing your canvas can help extend its lifespan and keep it looking good for longer. Here’s how to weatherproof canvas.

1. Clean your canvas

Before adding any waterproofing treatment, it’s essential to clean your canvas thoroughly. Use a soft-bristled brush and mild soap to remove any dirt, debris, or stains. Rinse the canvas with water and let it dry completely before applying any treatment.

2. Apply a waterproofing spray

One of the easiest ways to weatherproof canvas is to use a waterproofing spray. Choose a spray that is specifically designed for canvas and follow the manufacturer’s instructions. Apply the spray evenly and generously, making sure to cover the entire surface of the canvas.

3. Use a wax-based treatment

Another option for weatherproofing canvas is to use a wax-based treatment. This type of treatment adds a layer of wax to the surface of the canvas, providing a barrier against moisture. Heat the wax according to the manufacturer’s instructions and apply it to the canvas using a clean cloth. Make sure to cover the entire surface of the canvas with a thin, even layer of wax.

4. Invest in a waterproof cover

If you want to protect your canvas furniture or equipment from the elements, consider investing in a waterproof cover. Choose a cover that is specifically designed for your canvas item and make sure it fits snugly. This will provide an extra layer of protection against rain and moisture.

5. Store your canvas properly

When you’re not using your canvas items, it’s essential to store them properly to prevent damage from moisture. Make sure they are completely dry before storing them and choose a dry, well-ventilated location. Avoid storing them in damp or humid areas, such as a basement or garage.

6. Avoid harsh chemicals

Avoid using harsh chemicals or bleach on your canvas, as this can damage the material and reduce its lifespan. Stick to mild soap and water for cleaning and use only products that are specifically designed for canvas.

7. Check your canvas regularly

Regularly check your canvas items for signs of wear and tear, such as holes or tears. Repair any damage as soon as possible to prevent further damage from moisture.

8. Consider UV protection

UV rays from the sun can also damage your canvas items over time. Consider using a UV protection spray or choosing a canvas material that is specifically designed to resist UV damage.

9. Use a seam sealer

If your canvas item has seams, use a seam sealer to prevent moisture from seeping through the stitching. Apply the seam sealer according to the manufacturer’s instructions, making sure to cover all the seams.

10. Reapply waterproofing regularly

Over time, your canvas items may lose their waterproofing. Make sure to reapply your chosen waterproofing treatment regularly to maintain the protection.


How often should I reapply the waterproofing treatment?

It depends on how often you use your canvas item and how much exposure it has to moisture. As a general rule, it’s a good idea to reapply the treatment once a year or whenever you notice the waterproofing wearing off.

Can I use any waterproofing spray on canvas?

No, it’s essential to choose a waterproofing spray that is specifically designed for canvas. Using the wrong type of spray can damage the material or reduce its effectiveness.

Can I use a wax-based treatment on colored canvas?

Yes, you can use a wax-based treatment on colored canvas. However, be aware that the wax may darken the color slightly.

How do I know if my canvas needs weatherproofing?

If your canvas item is absorbing moisture or showing signs of mildew or mold, it’s time to weatherproof it.

Can I use a hairdryer to dry my canvas item?

Yes, you can use a hairdryer on a low heat setting to dry your canvas item. However, be careful not to overheat the material, as this can damage it.

Can I machine wash my canvas item?

It depends on the specific item and the manufacturer’s instructions. Some canvas items can be machine washed, but others may need to be hand washed or cleaned professionally.

Can I use a waterproof cover on a wet canvas item?

No, it’s essential to let your canvas item dry completely before covering it with a waterproof cover. Otherwise, moisture can become trapped inside the cover and cause further damage.

How long does a wax-based treatment last?

A wax-based treatment can last up to a year, depending on the amount of exposure your canvas item has to moisture.


Weatherproofing your canvas can extend its lifespan and keep it looking good for longer. It can also help prevent damage from moisture and UV rays.


Always follow the manufacturer’s instructions when using a waterproofing spray or wax-based treatment. Make sure to cover the entire surface of the canvas and pay special attention to seams and stitching.


Weatherproofing your canvas is an essential step in protecting it from rain and moisture. By following these tips and using the right products, you can help extend the lifespan of your canvas items and keep them looking good for longer.

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