Sauna Maintenance: Wood Wax vs. Paint (What You Need to Know)

If you already have a sauna at home or are planning to buy one, understanding how to stain and maintain the wood is crucial to extending the life of your outdoor sauna. Proper sauna maintenance can help extend the life of your outdoor sauna. Over time, saunas are exposed to the elements and will inevitably become susceptible to damage such as mold, fungus, rot, and warping. Wood staining and protection are key parts of effective sauna maintenance, preventing these problems before they occur. In this blog, we’ll provide a comprehensive guide to staining your outdoor sauna to help you ensure it remains stylish, durable, and comfortable for years to come.

Should You Use Wood wax oilor Eco Paint on an Outdoor Sauna?

Wood wax oil is a far superior choice for sauna surface treatments. The key reasons are the coating’s safety, breathability, and heat resistance, which are crucial for the sauna’s unique operating environment (high temperature, high humidity, and confined spaces). Both wood wax oil and eco-friendly paint are designed to protect the sauna’s wood and extend its lifespan. They also provide a distinctive appearance. Let’s explore the differences between paint and wood wax oil in various ways.

The Importance of Outdoor Sauna Maintenance

To extend the life of your outdoor sauna, we generally recommend regular maintenance of the wood. This maintenance helps protect the wood from UV rays, prevents wood decay during rainy seasons, and enhances its aesthetics.

UV Protection

For outdoor saunas, prolonged exposure to UV rays can cause the wood to fade and become brittle, compromising its structural stability and appearance. After staining and protecting the wood, the UV-blocking ingredients in the stain form a thin protective film on the surface, shielding it from direct UV rays. Additionally, some stains contain anti-fading and UV-absorbing ingredients, helping the wood retain its original color over time.

Wood Preservation

Wood, as a natural material, is susceptible to insects, fungi, and mold. Applying wood stain to your sauna creates a less hospitable environment for these harmful agents, effectively protecting it and extending its lifespan. Staining also reduces the effects of water stains, dirt, and scratches, making daily maintenance easier.

Enhancing Aesthetics

Over time, a sauna’s appearance will naturally change, often losing its original beauty and showing signs of aging. Wood staining can restore the natural beauty of a sauna, highlighting its texture without altering its structure. For those who appreciate a natural, rustic, or modern style, staining is an essential option and a key to creating a beautiful home sauna oasis.

Improving Sauna Sealing

Our saunas are made of spliced wood, so they aren’t 100% airtight. Applying wood wax or spray paint after installation can improve the seal, preventing internal heat loss during use and improving heating efficiency in winter.

Preventing Cracking/Warping

Since saunas are used outdoors, exposed to the sun and rain day and night, cracking and warping are natural symptoms of wood aging. Therefore, wood wax and paint can slow down the aging process to some extent.

Home Sauna Maintenance Guide: Understanding Maintenance Materials

Now that we understand the importance of wood stain in saunas, it’s time to decide which material to use. Just as there are many different types of saunas, there are four main types of maintenance materials: water-based paints, oil-based paints, natural oils (such as linseed oil and mineral oil), and wood wax oils (which contain both linseed oil and mineral oil). Each material has unique properties. Let’s explore the pros and cons of each to help you make the best choice. Here are four common sauna wood maintenance materials:

Do Outdoor Saunas Have to Be Treated with Wood Wax Oil or Paint ?

Of course not. This really depends on personal preference. Many customers prefer the natural look of outdoor saunas without applying any wood wax oil or paint, as they believe these treatments could potentially release harmful gases. Their saunas are made from premium woods such as cedar. At Alphasauna, we also offer knotty cedar saunas made from high-quality solid wood without splicing, providing customers with multiple options.

Can You Paint the Outside of a Sauna?

Absolutely. High-quality wood wax oils and paints can be odorless, non-toxic, and formaldehyde-free. It is worth noting that we recommend applying wood wax oil or paint only to the outer surface of the sauna room. The interior of the sauna room is not treated in any way. The thickness of the wood in our sauna rooms is about 38 mm, so no toxic gases will be produced inside when the sauna is in use.

Does the Interior of a Sauna Need to Be Sprayed with Protective Oil?

Alphasauna does not recommend applying any protective oils inside the sauna, including natural oils such as linseed oil or mineral oil. The high temperatures generated inside a sauna are not suitable for protective oils, and mold and mildew do not thrive in the hot, dry environment of a sauna over extended periods of use. Furthermore, outdoor saunas with asphalt shingles and aluminum panels keep rain out.

How to Stain Sauna Wood

Now that you understand how to stain and protect wood, you can move on to the next step: staining the wood in your sauna. Regardless of the stain you choose, the staining process follows these steps:

Cleaning the Sauna Surface

Before staining, thoroughly clean the sauna surface to remove any dirt, debris, mold, or dust. Wipe with a dry towel or use an air gun to blow away dust. Allow the wood to dry completely. You can use a mild soap-and-water solution, or a professional wood cleaner with a soft brush. Avoid harsh cleaners.

Sanding the Wood and Protecting the Surrounding Area

Use medium-grit sandpaper to sand any uneven areas on the exterior of the sauna wood. This will help the stain penetrate more effectively. To protect the surrounding area, place a rag or plastic sheeting. This will prevent unnecessary mess from sanding and staining.

Applying the Sauna Stain

Choose a dry, overcast day, avoiding direct sunlight, which can damage the wood during the staining process. Use a brush, roller, or sprayer to evenly apply the stain along the wood grain. After the first coat dries, wait 24 to 48 hours. If you want a darker color, wait until the first coat is completely dry before applying a second coat.

Applying a Protective Sealer (Optional)

To further extend the life of your sauna wood, consider adding a layer of clear protective sealer over the stain. This sealer provides enhanced protection against moisture, UV rays, and other factors, preventing premature fading and damage. This is the process typically used for applying wood wax oil.

Eco-Friendly Paint for Outdoor Saunas

If you are painting your outdoor sauna, it is crucial to find a dust-free workshop. Because paint cures on the surface, dust or impurities can affect the sauna’s appearance. The process is more technical, requiring strict cleaning, sanding, priming, basecoating, clearcoating, and drying, with each step meticulously executed. Normally, this is extremely difficult for one person to complete.

Sauna Expert Advice on Painting an Outdoor Sauna

If your sauna uses paint as a protective material, Alphasauna recommends hiring a professional or choosing a prefabricated sauna, which is custom-made at the factory and ready for immediate installation.

FAQ

 

How Often Should Wood Staining and Protection be Applied?

A: Re-staining is typically recommended every 1 to 3 years, depending on the level of wear and exposure the wood has experienced.

 

Does Stain Protect Wood From Water?

A: Basic staining can offer some moisture protection, but it does not create a thick waterproof barrier and may not provide long-term, comprehensive protection. But, when combined with a sealant, staining can create a waterproof layer on the wood surface for stronger water resistance.

 

Are There Alternatives to Staining for Protecting Sauna Wood?

A: If you’re still considering a sauna buy, you might opt for more weather-resistant wood types like cedar, hemlock, or heat-treated wood. If you already own a sauna, adding a shelter or applying a wood sealer can also help protect the wood.

Will Staining Damage Sauna Wood?

A: Staining can enhance the appearance of the wood, but using the wrong type of stain can cause issues, such as uneven coverage or moisture retention. It’s important to choose a stain appropriate for sauna wood

Conclusion

Protecting the wood of your home sauna with staining is an essential maintenance task that ensures the longevity and beauty of your sauna oasis. It’s a proactive way to take care of your investment and enjoy your sauna for years to come. If you’re considering purchasing a sauna, look no further. Alphasauna, with over ten years of experience, offers a variety of sauna styles including indoor, outdoor, and infrared options. As a one-stop service provider, we eliminate the need to navigate price differences between multiple sauna manufacturers , offering you the best prices directly. Contact us today to get started on creating your perfect sauna experience!