Can You Paint Over Thompson Water Seal?

Thompson Water Seal is a product that is designed to protect the wood from water damage. It is a clear sealer that can be applied to bare wood or over-paint. It is often used on decks and other outdoor wood surfaces. Many people wonder if they can paint over Thompson Water Seal.

The answer is yes. You can paint over it. However, there are a few things to keep in mind. You can use any type of paint, and it will still be waterproof. You must ensure that the surface is completely dry before you begin painting and rough up the surface slightly so the paint will adhere properly. This is a great way to change the look of your deck or patio without having to re-seal it.

Can You Paint Over Thompson Water Seal

How Long Should Thompson’S Water Seal Dry before Painting?

Thompson’s Water Seal is a clear waterproofing sealer that can be applied to a variety of surfaces to protect them from water damage. It is often used on decks and patios but can also be used on concrete, brick, and stone.

One of the questions we get most often about Thompson’s Water Seal is how long it should dry before painting. The answer is that it depends on the temperature and humidity levels. You should allow the sealer to dry for at least 24 hours before painting.

However, if it is very hot and dry, it may be necessary to wait 48 hours or more before painting. But drying time may vary depending on the substrate, temperature, and humidity. You should allow a minimum of 30 days for the sealer to dry before applying oil-based paint over it.

How to Paint Over Thompson Water Seal? A step-by-step guide

Although painting over Thompson Water Seal is difficult, it is still possible to do so with the right tools and techniques. Just follow these simple steps, and you’ll be able to paint over your Thompson Water Seal in no time:

Step 1: clean the surface

You’ll need to clean the surface before you can apply the new paint. Use a mild detergent and a soft sponge to remove any dirt or grime. Rinse the area with clean water and allow it to dry completely.

Step 2: Sand the surface

Once the surface is clean, you’ll need to sand it to create a smooth surface for the new paint. Use a fine-grit sandpaper and sand the area in a circular motion. Be sure to sand evenly to avoid creating any dips or valleys.

Step 3: Apply primer

Now it’s time to apply a primer. This will help the new paint to adhere to the surface and will also create a barrier between the old and new paint. Use a brush or roller to apply an even coat of primer to the area. Allow the primer to dry completely before moving on to the next step.

Step 4: paint the area

Now it’s time to paint! Use a brush or roller to apply an even coat of paint to the area. Be sure to work in small sections so that the paint doesn’t dry before you have a chance to spread it evenly. Allow the paint to dry completely before applying a second coat.

Can Water Sealer Be Used Over Paint?

It is often thought that you cannot apply water sealer over paint, but this is not the case. There are a few things to keep in mind when applying water sealer over paint, make sure that the paint is completely dry before applying the water sealer.

If the paint is not dry, it could react with the water sealer and cause problems. Ensure that you use a thin layer of water sealer. Too much water sealer will not allow the paint to breathe and could cause peeling or bubbling. And you need to allow the water sealer to completely dry before painting over it.

Should you water-seal your home before painting it?

The short answer is no. Water sealing your house before painting it will actually create more work for you in the long run.

Here’s why: Water sealing your house before painting creates a barrier between the paint and the elements. This barrier will prevent moisture from penetrating the paint, which can cause peeling and cracking.

However, this barrier will also prevent the paint from “breathing.” Paint needs to be able to breathe in order to properly cure and harden. If it can’t breathe, it will take longer to dry and may not achieve its full strength.

In short, water sealing your house before painting may make the job easier in the short term, but it will ultimately lead to more problems down the road. It’s better to just paint your house and forego the water sealant.

Can You Seal Paint With Water Sealer?

It’s a common question we get asked always, and it’s one that doesn’t have a definitive answer. You see, it depends on the type of waterproof sealant you’re using.

There are two main types of waterproof sealants: Water, and Solvent-based sealants

Each with their own unique properties and drawbacks. So, which one should you use? Let’s take a closer look.

Water-based sealants

Water-based sealants are, as the name suggests, made from water. They’re easy to apply and clean up, and they’re safe for both indoor and outdoor use.

One of the main advantages of water-based sealants is that they’re usually paintable. This means that if you ever need to change the color of your waterproofing, you can simply paint over the existing sealant.

The downside of water-based sealants is that they’re not as durable as solvent-based sealants. They can also be damaged by sunlight, so they’re not ideal for outdoor use.

Solvent-based sealants

These sealants are made from chemicals rather than water. They’re more durable than water-based sealants and better at resisting sunlight.

However, these sealants are more difficult to apply and clean up. They’re also more toxic, so they’re not suitable for indoor use.

So, which sealant should you use?

The answer depends on your needs. If you need a waterproof sealant that’s easy to apply and clean up, and you don’t mind reapplying it every few years, then a water-based sealant is a good choice.

If you need a more durable sealant that can withstand sunlight, then a solvent-based sealant is a better choice. However, you should only use solvent-based sealants outdoors, and you should take care to avoid inhaling the fumes.

Decorating & Painting, Thompson Water Seal

Can I Use Thompson Water Seal to Protect the Paint on My Kayak?

Yes, you can use Thompson Water Seal to protect the paint on your kayak. Applying a thin coat will provide an extra layer of protection from water damage and UV rays. Remember to clean and dry the surface before painting kayaks. Simple tips like these will ensure a longer lifespan for your kayak.


In conclusion, it is possible to paint over Thompson Water Seal, but it is important to follow the proper steps to ensure the best results. Waterproof sealant can also be painted over, but it is important to ensure that the surface is completely dry before doing so.

Thank you for reading! We hope that you found the information you were looking for. If not, please feel free to contact us, and we will be happy to assist you.

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