How to Make Wood Coasters Waterproof

Do you want to add a touch of rustic charm to your home? One way is by crafting wood coasters for drinks. Although making them looks easy, ensuring they’re waterproof can be a bit tricky.

How to Make Wood Coasters Waterproof

You don’t want water rings damaging the furniture or ruining the coasters themselves! That’s why it’s important to properly waterproof wooden coasters before using them. To help make this task easier to understand, we’ll go through all the essential steps that will help your wooden coasters become more durable and stay stylish!

If you are looking to make a unique, personalized gift or something special for your home, consider making wood coasters! Not only do they look great and give any table an instant upgrade, but you can also make them waterproof so that drinks don’t damage the surface.

Here, we’ll be discussing exactly how to make wood coasters more resistant to moisture and create a durable product. From choosing the right type of wood to varnishing it correctly – let’s dive in and learn all about how to make wood coasters waterproof!

10 Ideas on How to Make Wood Coasters Waterproof

1. Use a Waterproof Sealant or Varnish to Coat the Wood

One of the best ways to make wood coasters waterproof is to use a sealant or varnish. This will provide a barrier between the wood and any liquid that you may want to put on it. It also protects the wood from scratches or other damage that could be caused by moisture.

Use a Sealant or Varnish

2. Apply Polyurethane to Create a Waterproof Finish

Polyurethane is a great way to waterproof wood coasters. It will provide a strong finish that can resist any liquid or moisture that you put on it. You can apply the polyurethane with a brush or foam roller, and it will dry quickly and leave behind a durable finish.

3. Use Beeswax as an All-Natural Waterproof Finish

Beeswax is an all-natural way to waterproof wood coasters. It will not only provide a waterproof barrier but it also adds a nice shine to the wood. To apply beeswax, simply melt some on the stove and brush it onto your coaster once cooled.

4. Sprinkle PTFE or Teflon Powder onto Your Coaster

PTFE or Teflon powder is a great way to waterproof wood coasters. It’s a fine powder that can easily be sprinkled onto the coaster and then wiped off with a damp cloth. The PTFE/Teflon will create a barrier between the coaster and any liquids you’d like to put on it.

5. Coat Your Coaster with Polycrylic or Polyurethane

Polycrylic or polyurethane are both great sealants that can help make wood coasters waterproof. The two products work similarly, but polyurethane is slightly better at creating a waterproof barrier. Both of these products come in a variety of finishes so you can choose one that matches your coaster’s look and feel.

6. Use Epoxy Resin for a Durable Waterproof Barrier

Epoxy resin is also a great way to make wood coasters waterproof. It forms a strong barrier between the coaster and any liquid that you may want to put on it. This makes it perfect for anyone who wants to use their coasters for drinks or other liquids.

Epoxy Resin is Also a Great Way

7. Create Your Own Epoxy Coating

If you want to get creative, you can make your own epoxy coating for your coasters. All you need is some epoxy resin, a mixing container, and something to mix it with. Once mixed, the epoxy will form a strong bond between the coaster and any liquid that comes into contact with it.

8. Add a Layer of Wax Paper on the Coaster’s Bottom

Wax paper is a great way to keep moisture away from your wood coasters. Simply cut out some wax paper and place it on the bottom of the coaster, then use a little tape to hold it in place. The wax paper will act as an additional barrier between the coaster and any liquid that may come in contact with it.

9. Use a Spray-On Waterproof Sealant

If you don’t have the time or patience to apply a sealant by hand, then a spray-on waterproof sealant may be the perfect solution. Simply spray the sealant onto your coaster and let it dry for a few minutes. The sealant will create an effective waterproof barrier that will protect your coaster from any liquid.

10. Choose a Waterproof Wood or Composite Material

Finally, another great way to make wood coasters waterproof is to choose one made from a composite material such as cork or bamboo. These materials are naturally waterproof and can help you avoid having to apply any additional sealant or coatings. Plus, they come in a variety of styles and colors so you can find the perfect coaster to fit your needs.

A Spray-on Waterproof Sealant

By using any of these methods, you can easily make wood coasters waterproof and greatly improve their lifespan. Whether you choose a sealant or opt for a composite material, proper care, and maintenance will help keep your coasters safe from moisture. With just a few simple steps, you can be sure that your wood coasters will last for years to come.

Frequently Asked Questions

What Precautions Do I Need to Take When Making Wood Coasters Waterproof?

When making wood coasters waterproof, it is important to use the proper materials and techniques. Use a water-resistant sealant such as polyurethane or clear varnish. Make sure to apply multiple coats, allowing each layer time to dry before applying the next one.

You may also want to consider a sealant specifically designed for use on wooden coasters, as this may provide additional water resistance. Additionally, be sure to sand down the wood prior to applying your sealant in order to ensure maximum adhesion and protection. Finally, avoid submerging or exposing your wood coaster too long periods of moisture or harsh chemicals.

Can I Make My Own Wood Coasters?

Yes, you can make your own wood coasters at home. It’s a relatively simple process that involves cutting and sanding boards into coaster-sized shapes, then varnishing or sealing them for protection. You can find plenty of tutorials online to help you get started with this project. Additionally, many craft stores carry unfinished wooden coasters that you can purchase and customize with your own design.

How Do I Clean My Waterproof Wood Coasters?

To clean a waterproof wood coaster, use a damp cloth or sponge to wipe away dirt and debris. Avoid using harsh chemicals such as bleach or abrasive cleaners, as these may break down the sealant over time. For tougher stains, you may need to use a small amount of soapy water. However, make sure to dry the coaster thoroughly afterward.

Cutting and Sanding Boards

Are There Any Alternatives to Making Wood Coasters Waterproof?

Yes, you can also opt for ceramic or glass coasters that are pre-made and ready to use. These materials tend to be more durable than wood and are naturally waterproof, so they won’t require any additional protection. Additionally, ceramic and glass coasters come in a variety of colors and designs, so you can easily find one that matches your home decor.

Can I Use Any Type of Wood to Make Coasters?

Yes, you can use any type of wood to make coasters. However, some varieties are more durable and waterproof than others. For example, hardwoods such as teak or mahogany are ideal for making coasters due to their natural durability and water resistance. Softwoods, while less expensive, may not provide the same level of protection as hardwoods and may require more frequent sealing.

Is It Necessary to Make Wood Coasters Waterproof?

Yes, it is generally necessary to make wood coasters waterproof in order to protect them from damage caused by moisture or spills. Without a proper sealant, the wood can become warped or fade over time due to exposure to moisture or liquid.

Additionally, not all types of wood are naturally waterproof, so it’s important to apply a sealant even if the wood is hardwood. Sealants also help protect against staining and odors caused by spills.

Ultimately, whether you choose to make wood coasters waterproof or opt for an alternative material is up to you. No matter what type of coaster you use, it is important to protect surfaces from spills and messes. Regardless of the material, you can also find a wide range of coaster styles to fit any home decor. So take some time to explore your options and choose coasters that make your space feel complete.


Now that you know how to make wood coasters waterproof, you can enjoy their beauty without having to worry about them getting damaged by water or other liquid spills. From prepping the wood with sandpaper and sealer, to adding a wax or oil coating and touching up from time to time, your coasters will be as good as new for years to come. 

Just take the appropriate safety measures when applying these treatments and avoid contact with harsh cleaning products, and your wood coasters will stay in great condition with just minor maintenance needed.

So don’t let worries keep you from drinking (or even sipping) in style–waterproofing your wood coasters is easy and worth the effort! Remember: if you put forth a little care now, you can have beautiful wooden pieces that will bring life to your table for decades!

Photo of author

Adrian Green

Adrian has been interested in woodworking since he was a child. His father had a woodworking shop, and Adrian would help him out and learn from him. He gained basic carpentry knowledge as well as an understanding of how to work hard and take care of business. He enjoys woodworking as a hobby. He loves the feeling of creating something with his own hands, and the satisfaction that comes from seeing his finished products used by others. So he started this blog to spread his passion and knowledge to those interested in DIY wood-working projects. He knows that with a little guidance and practice, anyone can create beautiful pieces of furniture or décor from scratch.

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