10 Best Sealers For Wood Decks: Review With Buying Guide

Do you want to increase the lifespan of your wooden deck by protecting the harsh elements such as rain, sun, and mold? Wood sealer is one of the best ways to do just that, and various options are available to you. This post will discuss 10 of the best wood sealers for wood decks and help you choose the one that’s right for your wood deck.

Wood sealer is essential when it comes to wood preservation. Unless your wood is protected from the elements (sun, rain, snow, wind), it will quickly rot, crack, splinter, and fade. There are several different types of wood sealers available. Still, the best option for you will depend on your project circumstances.

If you are busy and looking for the best in a short time, choose the Seal-Once Marine Premium Wood Sealer. This High-quality water-based wood sealer is best for outdoor wooden furniture and thermally modified wood. The innovative formula protects wood from moisture, UV rays, and other environmental damage while giving it a natural look and feel.

I will review the 10 best wood sealer options that are fantastic for wood decks. The guide will also include a buying guide and tips on how to apply wood sealer.

Contents show

Best Wood Sealer For Wood Decks: A Head-To-Head Comparison

Need to read from top to bottom quickly? Here are the 10 best wood sealers for wood decks with essential features. Depending on your preference, pick one of them.

Wood Sealer For Wood DecksTypesWeather ResistanceCoats RequiredDrying TimesPrice
Seal-Once Premium Wood SealerWater -BasedUV And Moisture Resistant224 HoursCheck Here
Storm Stain Protector-Outdoor Wood Stain & Sealer:Oil BasedUV And Moisture Resistant224 HoursCheck Here
Defy Composite Deck Waterproofing SealerWater BasedWater And UV Resistant224hoursCheck Here
Rust-Oleum 250041h Ultimate Spar UrethaneWater BasedUV And Moisture Resistant430mintsCheck Here
Eco Advance Wood Siloxane WaterprooferWater BasedMoisture Resistant230mintsCheck Here
Anchorseal 2 Log & Lumber End Grain SealerWater BasedMoisture Resistant224hoursCheck Here
Thompson’s Waterseal Wood ProtectorWater BasedUV And Moisture Resistant224 HoursCheck Here
Seal It Green Garden Box SealerPlant-BasedWater & Moisture Resistant210-15 MintisCheck Here
Ready Seal Stain & Sealer For Wood Oil BasedWater And UV Resistant248-72 HoursCheck Here
1 Deck Premium Wood Fence Stain & Sealer Water BasedUV And Moisture Resistant224 HoursCheck Here

10 Best Sealer For Wood Decks: Details Review

The 10 best wood sealers are reviewed here. I will analyze each for pros, cons, and features. Read on whether you’re a beginner or an experienced builder.

1. Seal-Once Premium Wood Sealer: Best For Outdoor Furniture And Thermally Modified Wood 

Suppose you want to seal off your outdoor furniture from the elements and prevent it from fading. In that case, Marine Premium Wood Sealer should be your go-to product. It protects wood from moisture, UV rays, and other environmental damage while giving it a natural look and feel.

Features With Benefits:

  • Waterproof Wood Sealer:

Seal-Once  Premium Wood Sealer is the perfect solution for wood that’s subject to moisture and staining. This water-resistant sealer removes stains and finishes the wood with a beautiful, protective finish.

  •  Uv-Stable Coating: 

 This premium Wood Sealer is a liquid formula that creates a UV-stable coating to protect against elements, saltwater spray, and water damage. This marine sealant is excellent for outdoor furniture, thermally modified wood, and boat docks.

  • Ultra -Low -VOC:

This premium Wood Sealer is a water-based sealer that uses ultra-low VOCs to help preserve your wood’s color and texture while protecting it from moisture damage. This product is perfect for use on floors, siding, and porch boards.

  • Moisture Resistant:

Marine wood sealers are a great way to protect your lumber or concrete against water damage. They contain unique ingredients that help resist moisture and protect the material’s surface from rain, snow, and other elements.


  • Intensely penetrating;
  • It applies clearly;
  • Easy to clean;
  • Mold, salt, and algae-resistant;
  • Fast drying time;


  • Little bit expensive

2. Storm Stain Protector-Outdoor Wood Stain & Sealer: Best For Outdoor Wood

Does your outdoor wood need a coat of protection from harsh elements? If so, you’ll need to consider using a storm stain protector. These products protect the wood from weather damage, including water, wind, and sun. They also offer protection from unwanted insect activity and varnish buildup. 

Features With Benefits:

  • Protector Stain & Sealer:

This penetrating stain & sealer is semi-transparent, protecting the wood grain while highlighting its natural beauty. It is perfect for outdoor furniture, floors, decks, railings, and more. Storm Protector can also be used as an all-in-one primer/sealer/stain for indoor and outdoor applications.

  • Penetrates Deep Into The Wood Grain:

Storm Protector makes a powerful formula that penetrates deep into the wood grain for added protection against Mother Nature. It also has a solid odorless odor, so you can get on with your life without worrying about unpleasant smells creeping up throughout your home. 

  • Protect Exterior Wood Surfaces:

Storm Stain Protector is a great option. This siding, deck, fence stain, and sealer offers superior waterproofing and UV protection to help prevent color fading. You can use it on any wood, including composite decks, railing systems, fences, sheds, or outdoor furniture!

  • Use In Any Weather:

This product is made specifically for harsh weather conditions like rain, snow, and wind. Storm Protector provides long-lasting protection against water damage and decay thanks to its high-quality ingredients and advanced formula. 


  • Apply easily;
  • Pigmentation using trans oxides;
  • It’s a lap-free application;
  • Highly durable ;
  • Early drying time.


  • The packaging is not good.

3. Defy Composite Deck Waterproofing Sealer: Best For Prevent Fading & Color Loss

Defy composite deck sealer is a high-performance water-resistant sealant that can be used to protect wood decks from the elements. It provides long-lasting protection against fading and color loss, making it perfect for areas exposed to sunlight or other weather conditions.

Features With Benefits:

  • Zinc nanotechnology:

This Waterproofing Sealer is a breathable and water-resistant sealant that uses zinc nano-particle technology to protect your deck from damage caused by the sun. This stain contains zinc particles reflecting UV rays, preventing premature graying and color loss.

  • Uv- Protector:

Composite Deck Waterproofing Sealer is a water-based sealant that protects against the harmful effects of the sun. It also helps to maintain the natural look of your composite deck.

  • High-Quality Resins:

This sealer is a high-quality sealer that typically lasts longer than competitive products. This resin has better fade and darkens resistance than other resins. This results in a quality sealer that looks great and stays protected for months or seasons.

  • Long Lasting:

Using this premium-grade composite deck sealer, you can extend the lifespan of your deck. It’s designed to resist water and weather damage, so you can enjoy your deck without worrying about it deteriorating over time. 


  • Suitable for wood and composite surfaces;
  • Highly durable;
  • Maintain easily;
  • Prevents fading and color loss.


  • Poor scratch-resistance.

4. Rust-Oleum 250041h Ultimate Spar Urethane: Best For Outdoor Wood Surface

Rust-Oleum 250041h Ultimate Spar Urethane is a top choice for outdoor wood surfaces. It offers superior durability and protection against weathering, pests, and other common problems. 

Features With Benefits:

  • Non-Yellowing Formula:

Rust-Oleum Ultimate Spar Urethane is a non-yellowing formula that will keep your wood looking great for longer. It has a high sheen and resists staining, so it’s perfect for use on outdoor furniture, decks, trim, and railing.

  • Uv Protector:

Rust-Oleum Ultimate Spar Urethane is a top-quality urethane that offers superior performance in outdoor applications. It’s UV resistant, which will resist degradation from the sun’s ultraviolet (UV) radiation. This makes it ideal for use on exterior surfaces.

  • Weather Resistance:

Rust-Oleum Ultimate Spar Urethane is a top coat that is weather resistant and protects against mold and mildew. It also doesn’t yellow over time, which makes it perfect for use on wood surfaces that may expose to the elements.

  • Extra Fast Drying:

Rust-Oleum Ultimate Spar Urethane is a high-performance, fast-drying urethane that covers up to 87 sq. ft. per quart and dries to the touch in 30 minutes. It recoats in 2 hours after three coats have been applied, giving you extra speed when working on large projects. 


  • Highly durable;
  • Apply easily;
  • Super fast drying capacity;
  • Give professional results;
  • Semi-Gloss finish.


  • Buildup and bubbles make brushing difficult.

5. Eco Advance Wood Siloxane Waterproofer: Best For Plywood, Wood Shingles, Wood Siding 

Eco Advance Wood Siloxane Waterproofer is a water-based, non-toxic sealant that helps protect the wood from moisture and decay. It’s perfect for plywood, wood shingles, and wood siding.

Features With Benefits:

  • Commercial Grade Formula:

Eco Advance Wood Siloxane Waterproofer is a commercial-grade formula that can be applied using a standard garden pump sprayer. It is ready to use and contains no harmful chemicals or solvents. This waterproofer helps protect your wood from water damage while preserving its color and grain.

  • Landscape Plantings Friendly:

Eco Advance Wood Siloxane Waterproofer is a water-based, non-toxic, and non-flammable formula that can protect landscape plantings from the effects of moisture and weather conditions. It does not harm plant growth or cause any negative environmental impact, making it an environmentally friendly option for homeowners who want to keep their plants healthy and protected.

  • Protects Against Water Damage:

This product is a professional-grade waterproofer that works to protect wood against water damage, oil, stains, and mold. It also prevents the growth of mildew and de-icing salts on the furniture’s surface.

  • VOC Compliant:

This waterproofer is also VOC compliant, which means it complies with all applicable building codes. So if you’re looking for a premium waterproofing solution that meets all your safety requirements, Eco Advance Wood Siloxane Waterproofer should be at the top of your list.


  • Apply Easily;
  • It dries clear;
  • Highly durable;
  • Water beading heavily;
  • It is odorless and non-toxic.


  • Poor scratch-resistance.

6. Anchor seal 2 Log & Lumber End Grain Sealer: Best For Wood Bowls, Turning Blanks, Cookies & Live-Edge Wood Slabs

If you are looking for the best sealer for your needs, Anchorseal 2 is worth consideration. These High-quality sealers are designed to protect wood bowls, turning blanks, cookies, and live-edge wood slabs from moisture damage.

Features With Benefits:

  • Prevents Of End Checks:

Anchor seal 2 is a two-part end grain sealer that prevents up to 90% of end checks and drying splits on logs and freshly cut lumber. It also has an antimicrobial agent to help prevent mold and bacteria growth.

  • Eco-Friendly:

ANCHOR SEAL 2 is a water-based, eco-friendly log & lumber end grain sealer that protects wooden surfaces from moisture damage and decay. This gentle sealer leaves the wood with a natural finish while protecting it against future rot and weathering.

  • Hybrid Formula:

ANCHOR SEAL 2 is a hybrid sealant that combines wax with natural plant-based polymers. This unique formulation allows for quick and even penetration into the wood fibers while providing long-term weather protection. 

  • Prevent Blue Stain:

Anchor seal 2 is a powerful and effective log and lumber end grain sealer that helps prevent blue stain and sap stains caused by damaging fungi. Anchor seal 2 penetrates the wood fibers to protect them from moisture, mold, insects, and other pests.


  • Apply Easily;
  • Minimizes cracks;
  • Clear after dries;
  • It is odorless and non-toxic.


  • Poor Creaks -resistance.

7. THOMPSON’S WATER SEAL Wood Protector: Best for wood Waterproofing

Thompson’s Waterseal 21802 VOC Wood Protector is a unique product that can help protect the wood from water damage. It contains natural Water-based protection agents that work to waterproof and seal the wood against moisture, dirt, and debris. 

Features With Benefits:

  • Prevent Water Damage:

Thompson’s Waterseal Wood Protector is the perfect solution for protecting your wood furniture from water damage. This product protects against moisture, mold, and other environmental elements.

  • Maintain Wood Natural Color:

Thompson’s Waterseal Wood Protector is a unique product that helps protect the wood from weathering and staining. It contains natural ingredients that help keep the wood’s color intact while protecting it from damage.

  • UV protector:

THOMPSON’S WATER SEAL Wood Protector is a versatile and practical UV protector that can be used on virtually any surface. It’s ideal for use in outdoor environments, such as decks, porches, steps, walkways, and more.

  • Moisture Resistant:

Thompson’s Waterseal Wood Protector is a versatile product that can be used on any wooden surface to protect it from moisture, scratches, and other damage. This wood protector makes a unique formula that creates a durable seal on the wood while preventing moisture absorption. 


  • Maintain the natural color of the wood;
  • Highly durable;
  •  scratch-resistance;
  • It applies clearly.


  • Mild but acceptable odor.

8. Seal It Green Garden Box Sealer: Best For Garden Bed Wood

Are you looking for a safe sealer for your garden and the environment? Look no further than Seal It Green Garden Box Sealer.

Features With Benefits:

  • Plant Safe:

Seal It Green Garden Box Sealer is a plant-safe sealer that bonds to wood and won’t leach into the soil. That means that your plants will be protected from harmful chemicals and will be able to grow and thrive in healthy soil.

  • Professional Strength:

This Garden Box Sealer is a professional strength product that covers up to 100 square feet of soil. The sealer helps to prevent the release of harmful chemicals into the ground, protecting plants and ensuring that they will be safe to eat. In addition, the sealer helps to keep the soil moist and prevents weed growth. 

  • Premium Ingredients:

This sealer makes from premium ingredients, including tree nut oils, soy/corn-derived carrier, coconut-derived surfactants, and plant-based preservatives. These ingredients are all safe for both your plants and the environment. 

  • Non-Toxic:

This environmentally friendly sealer makes from a unique blend of safe ingredients for humans and animals. Garden Box Sealer will not off-gas toxic chemicals or release harmful fumes. Instead, it creates a protective barrier that helps to keep moisture in and pests out. 


  • Apply easily;
  • Prevent creaking and cupping;
  • Defends against nature’s worst;
  • Pets friendly.


  • A little bit expensive.

9. Ready Seal Stain & Sealer for Wood: Best for Exterior Wood

Suppose you’re looking for an exterior wood sealer that looks beautiful and lasts long. In that case, Ready Seal stain & sealer is the perfect option. Ready Seal is a clear wood finish that is tough and resistant to weathering and fading. 

Features With Benefits:

  • Enhances The Natural Beauty:

Ready Seal stain is a great way to enhance Wood’s natural beauty while still allowing the texture and grain to be visible. The stain is easy to apply and provides excellent coverage, making it perfect for large and small projects.

  • Unique Formula:

This oil-based formula provides a beautiful, natural appearance that will protect your wood surfaces from the sun, weather, and wear and tear. It has a high sheen and resists staining, so it’s perfect for exterior wooden surfaces.

  • Prevent Water Damage:

Ready Seal stain & sealer is a great product to protect your wood from water damage. It is a two-in-one product that stains and seals the wood in one easy step. The long-lasting bond made by Ready Seal will not be washed away by rain or sprinklers. Protect your wood from water damage because it may warp, crack, and rot.

  • Uv Protector:

Ready Seal is a high-quality stain & sealer for wood that offers excellent protection against the sun’s UV rays. It also helps prevent mold and mildew growth, keeping your deck or patio looking new. This oil-based sealer doesn’t contain any harmful solvents or VOCs. 


  • Maintain Easily;
  • No wet-line application is required;
  • no back brushing ;
  • Apply any temperature range.


  • Extended drying time (48-72hours);
  • The packaging could be better.


10. Deck Premium Wood Fence Stain & Sealer: Best For preventing Fading and Graying

Deck Premium Wood Fence Stain & Sealer is a great choice for preventing fading and graying in wood fences. It has a fast-drying formula that leaves the fence looking new, while also protecting it from weather damage.

Features With Benefits:

  • Prevent Water Damage:

This Wood fence stain & sealer is a perfect solution for protecting your wood from water damage. This product protects against moisture, mold, and other environmental elements.

  • UV Protector:

This premium sealer is a versatile and practical UV protector used on vertical wood surfaces. It’s UV resistant, which will resist degradation from the sun’s ultraviolet (UV) radiation. This makes it ideal for use on exterior surfaces. 

  • Eco-Friendly:

Deck Premium Wood sealer is a water-based, eco-friendly log & lumber end grain sealer that protects wooden surfaces from moisture damage and decay. This gentle sealer leaves the wood with a natural finish while protecting it against future rot and weathering.

  • Ultra -Low -VOC:

This premium Wood Sealer is a water-based sealer that uses ultra-low VOCs to help preserve your wood’s color and texture while protecting it from moisture damage. This product is perfect for pressure-treated fences, cedar fences, and redwood fences.


  • Long Lasting Fence Sealer;
  • Apply Easily;
  • Keep wood natural color;
  • It prevents fading and graying.


  • Mild but acceptable odor;
  • The packaging could be better.

Things To Consider Before Buying A Wood Sealer For Wood Decks

If you’re considering buying a sealer for wood, there are a few things you should think about first.

1. Types of Sealers:

There are two types of deck sealers: water-based and oil-based. Although water-based products are more popular, both types have advantages and disadvantages.

2. Easy To Apply:

There can be a lot of difficulties applying sealers based on oil. As the moisture attempts to evaporate, tiny bubbles and spots may appear on the deck if it is not dry completely when the sealer based on oil is applied. Wood that is overly damp but not wet can be sealed with a water-based sealant.

Oil-based sealant must be applied with brushes, whereas water-based sealant can be applied to the wood by brushing or spraying. Rollers are not commonly used, no matter what material is used for deck sealing.

3. Environmental awareness:

Sealers based on water are better for the environment in general, and they are less irritating for the lungs & eyes when compared to sealers based on oil.

  • Cleanup:

After applying a liquid sealant, you can easily remove brushes and tools. A solvent such as paint thinner is required to remove an oil-based sealant after application.

  • Durability:

It is more common for sealers based on oil cracks or flaws over time than sealers based on water, particularly in extreme weather conditions.

  • Preparation:

When resealing a deck, sealants based on oil typically offer more forgiveness. Products containing oil are usually easier to apply evenly over imperfections or rough woo than water-based products. Before using any Sealer, preparation and cleaning of the deck are essential.

4. Level Of Water Resistance:

Sealers are used on wood decks primarily to keep water out, as this is the leading cause of damage. It is susceptible to warping, cracking, and splitting with temperature and weather changes. It is ideal to choose a water-based sealer that penetrates the wood fibers. Test it with water beads to make sure it’s working. Water protection is adequate if beads form on the wooden surface. Water the wood with a spray bottle. Keeping your deck water-resistant requires sealing pressure-treated wood once a year.

5. VOC Level:

After applying deck sealants, deck sealer, or oil-based stain & sealer combo products, DIYers may experience an irritated nose, headache, or burning eyes that are caused by VOCC fumes. VOCs are often found in deck sealers as solvents. To ensure a long-lasting coating, sealer components must not separate.

The government does not regulate the level of VOCs allowed in deck sealers. Still, manufacturers strive to provide quality products while reducing toxins. In the end, people and the environment benefit from non-VOC sealers emitting less toxic fumes.

  • Low-VOC:

There is a limit of 50 grams of VOCs per (g/L) in in-deck sealers labeled “low-VOC.” That compares with contains up to 300 grams of high-VOC sealants

  • No-VOC:

Often referred to as “VOC-free,” these deck sealants have few or no volatile organic compounds. There is approximately five g/L or less of VOC in no-VOC products. When paints and sealers contain low VOCs, we expect improved durability, fewer reapplications, better edge protection, thicker coatings, more accessible application, and better air quality after sealing. It will help if you also choose a deck paint with low volatile organic compounds (VOCs) so you don’t inhale toxic fumes.

6. Degree Of Uv Protection:

All living things, including wood, can be damaged by the sun’s ultraviolet light (UV) rays,

which beat down daily. Fading, cracking, and splintering are signs of that wood damage. 

The added ingredients in deck sealers, like zinc particles, Protect against UV rays.

 Although they break down quickly, these ingredients usually achieve long-term stability. That can even happen in a few months when the weather is warm and sunny.

To ensure optimal UV protection, apply a simple water-based sealant before summer starts. The durability of deck sealants varies, so it recommends that you reapply them before the summer season begins.

7. Color:

The color of the sealer is often chosen to match the wood (we offer sealers for staining mahogany wood) or complement the home, or the sealer is semi-transparent.

If you are planning to paint a pressure-treated wood deck, it is wise to start by painting a small area with a light color. Consider getting a sample of the wood deck and having the hardware store recommend the type and color of the sealer that will work best for your deck.

If you change your mind, we recommend applying a light tone. The darker tones absorb more heat, increasing the temperature on your deck, so you may only be able to use it in the early mornings or late afternoons. Additionally, if you regularly get leaves or other foliage on your deck, the stain these cause won’t be as apparent.

8. Drying Time:

Depending on the deck sealer, drying time may vary. Depending on the humidity level and ambient temperature, it may take one to five hours for a garment to be dry to the feel.

  • Water-Based Sealant:

Water-based sealers typically dry in one to three hours when it is between 60 and 90 degrees Fahrenheit and Moisture content is at or below 50%. A 2nd coat can be applied after the sealant has dried to the fee. Sometimes, the sealer may take up to 24 hours to cure (when it is dry enough for furniture to place or for you to walk).

  • Oil-Based Sealant:

About 24 hours after applying the first coat, apply the 2nd coat. The drying time of oil-based sealant is usually between four and twelve hours. Fast-drying additives are found in newer oil-based sealers, which may reduce the time it takes to recoat after drying. There is a possibility of a 72-hour cure time.


9. Moisture Resistance:

It is possible for deck sealers, like deck paints, to contain mildew ides, chemicals that kill fungal spores. White or black splotches on wooden decks caused by mold or mildew are unsightly and difficult to remove in damp climates. If you live in rainy or high-humidity weather, you should find a fungus- and moisture-resistant sealer.

10. Coats:

Some deck sealers can be applied in a single coat, while others require two coats for maximum performance. A single-coat sealer can save users a lot of time, although it will cost them more.

The surface can have a rough feel when using a water-based, penetrating sealer. In this case, the wood grain swells and pushes upward due to the moisture in the sealer. As the wood dries, the grain remains slightly higher in some places.

Applying the second coat of sealer without lightly sanding the surface with 240-grit sandpaper is possible. However, some people may prefer its rougher texture.

Read the instructions carefully before applying the product, as curing times vary. Others recommend waiting a certain number of hours before applying a second coat, usually between two and eight hours. Sandpaper shouldn’t be rubbed over the wood with pressure. A smooth deck surface is achieved by sealing the wood with the first coat, resulting in a soft second coat.

How To Apply Wood Sealer On Wood Decks For The Utmost Results?

Before applying the sealer, rinse your deck thoroughly to ensure it is highly effective. Ensure all Mold, debris, and dust are removed. We must keep a few things in mind before we discuss Sealing a wood deck.

To properly absorb the sealer into the wood, it needs time. The finish will dry too fast if applied in full sunlight. It is also best to wait a few weeks before staining a newly constructed deck if you use treated wood. The stain will absorb better if the wood has completely dried. It’s time to get started!

Step 1: Verify The Weather Forecast

Before applying deck sealant, it is necessary to make sure that the deck has been dry for at least 2 days at a temperature between 50 and 90 degrees Fahrenheit. In this way, you will provide the highest quality sealing.

Step 2: Clean The Decks

Keep the plants, furniture, and other furnishings scattered throughout your deck from being sealed. Because Sealing any surface with a sealant will trap moisture inside the container and prevent it from leaving. That can rot, damage the wood frame or flooring below, and increase bacteria growth.


Step 3:Use Sand (If Needed)

Make sure your deck is properly sanded before sealing it. In many cases, sanding is necessary, but it takes time. If you want to sand faster, use a Palm scrubber or pole scrubber to sand along the grain. To avoid inhaling sawdust while sanding, wear a respirator.

Step 4: Debris Removal

After sanding, removing loose debris from the deck is essential. Clean all cracks of decks and allow them to dry completely. If there are still any dry spots, wait until these areas are thoroughly dried before continuing. Apply a coat of wood sealant once the deck is completely dry.


Step 5: Sealer That Stirs

Make sure the sealer is thoroughly mixed before applying it. To avoid bubbles, it is essential to keep the sealer intact.


Step 6: Applying The Sealer

Use a brush, sprayer, or roller, to apply a thick coat of paint over a 2- to 3-board area. It is better to apply a 2nd thick coat than a single thick coat so that you may add another light coat later. In addition to back-rolling, creating a good coat may be necessary. One person must apply a sealant, and another must spread puddles with a broom or roller.


Step 7: Repetition And Fine-Tuning

It recommends that step 6 be repeated throughout the deck. The finer the paintbrush, the easier it is to seal cracks, railings, and steps.

Step 8: Let Dry It

When using your deck, you should ensure that it has completely dried before using it. That will help avoid possible water damage and other issues.

Reasons For Using Deck Sealant On Wood:

Deck sealant protects the wood from moisture, dirt, and other contaminants. It is typically applied as a coat of sealant on the wood surface and then left to dry. Deck sealant can be used to protect the wood from the harmful effects of the elements, and it can also help improve its appearance. Listed below are a few reasons why you should use deck sealant on your wood:


  • Wood Sealer Prolongs The Life Of Your Deck:

There are many enemies on your deck, including rain, wind, sunlight, and heat. Your deck, porch, or patio will deteriorate faster if exposed to these conditions for an extended period. Your deck is protected from the elements by using a wood stain sealer.

  • Preserve Affordable Decking Lumber:

There is no doubt that pine is an affordable softwood, but it requires frequent repairs or replacements. Pressure-treated pine is often used for decks by homeowners. Insects or rot can be prevented by using a wood sealer.

  • Preserves The Beauty Of The Wood:

There’s no way that’s an overstatement since even stains alter the color of wood to some degree. Stains can preserve the natural grain pattern of the wood, but they will still make it appear darker. Applying a transparent stain to your deck wood is best if you love its natural grain pattern and color.

  • Add An Attractive Sheen:

The great thing about sealants nowadays is that they come in various types. It is possible to get almost invisible sealers. If you want to add a stylistic sheen to your deck without altering its natural beauty, you can apply a seal that adds a stylistic shine.

  • Protects From Moisture:

To prevent water from penetrating the wood, deck sealants penetrate deep within the planks. A film is also applied to the surface to prevent water from penetrating the wood.

The dual-action protection prevents wood rot, fungal growth, mildew, and mold on your deck, which can damage it.

  • Sealing Is Cost-Effective: 

Sealing your deck is one of the most cost-effective options if you decide to do the project yourself. Although you will need to hire a contractor to complete the job, it is still an affordable option compared to staining and painting.

  • Protector Against Rot:

Over time, wood degrades. Rotting is a severe problem for timber. It is not only unsightly but dangerous to have a rotted wood deck. Sealing your deck’s wood prevents injuries and protects it from rot. There is no way to reverse wood rot. To prevent this from happening, you must take the necessary steps.

  • Sealers Can Be Used In Tandem With Stains:

It is popular among deck owners to stain their decks, as the added pigmentation provides coloration and protects them from UV rays. While stain protects your deck from UV rays, it doesn’t offer much else in deck protection. To protect against weather, water, and UV rays, you can use a combination sealer that contains pigmentation.

  • Sealing Can Save Your Wood:

Sealing offers more excellent protection than painting and staining. A sealant is often recommended as the finishing touch when restoring an old, damaged deck since it protects the wood from further damage.


Which Is Better For A Wood Deck, Seal, Or Stain?

Your wood’s needs will determine which one is best for you. Stains are the best choice if you want to change the color of your wood. A stain is better if you want to keep the wood color and protect it from the elements for as long as possible.

Though opinions differ on whether staining or sealing is more important, it makes sense to choose a wood with a color you’re already happy with and seal it to protect it and get the most life out of it. The deck will need to be repainted every other year or two.

Do You Need To Sand The Deck Before Sealing?

You must sand your deck before sealing it if you are considering sealing it. You must perform this step to prevent ugly blemishes or marks from appearing on your newly stained or closed deck.

The deck should be sanded before it is sealed to avoid unnecessary damage and keep your finish looking great for years to come. This step is essential for a high-quality refinishing job. The purpose of sanding a deck before staining is to provide it with a smooth, clean, and absorbent surface so the stain and paint will adhere more easily.

Is Water-Based Or Oil-Based Deck Sealants Best For A Wood Deck?

Each has its advantages and disadvantages. Choose one best suited to your deck, or determine if one’s advantages outweigh its disadvantages.   

A water-based deck sealant is safer for people and animals around the deck and more eco-friendly. Furthermore, these dry much faster. Water and detergent are usually all that’s needed to clean them.

It is more durable and offers excellent protection than water-based sealers. Compared to oil-based products, these products are less stable. Additionally, they contain toxic chemicals. Apply them according to the manufacturer’s instructions for the best results.

Finally, expect a more extended drying period and higher prices than water-based alternatives.

Does Sealing A Deck Make It Last Longer?

High-quality sealers are the key to extending the life of a deck and protecting it from the elements. The wood sealer protects your deck from weather damage, preventing moisture and fungi from infiltrating. Additionally, sealing can enhance the natural grain of your lumber by adding richness and depth.

Protecting your deck isn’t just about keeping it looking good but also preserving its structural integrity. Rain and wind exposure can cause rotting and peeling (a condition called biofouling), which could lead to severe problems like rot. A high-quality wood sealer will keep your deck healthy and robust for years.

Final Recommendation:

There are many wood sealers for wood decks available due to their popularity. This article lists the 10 best wood sealers for wood. Different brands trust all these models for their quality and performance. This article about wood sealer includes a detailed buying guide and method of applying.

After looking through all these top models, Seal-Once Marine Premium Wood Sealer has made extra efforts to make this wood sealer one-of-a-kind. Ultimately, the best for outdoor furniture and thermally modified wood, a unique formula that gives long-lasting protection.

If you need to prevent fading and color loss of your wood decks, pick the Defy Composite Deck Waterproofing Sealer. This high-quality, affordable wood sealer can be used to keep the natural beauty of wood and prevent fading and color loss. It’s perfect for anyone looking for a reliable, affordable way to seal their wooden decks.

Undoubtedly, all the above products are the best available on the market. To achieve the expected result, you can choose any of them. However, follow these buying guides when selecting a wood sealer for your wood decks.


5 Excellent Reasons To Protect Your Deck With Wood Sealer. (2020, December 14). SEAL-ONCE. Retrieved October 29, 2022, from https://seal-once.com/5-excellent-reasons-to-protect-your-deck-with-wood-sealer/

Home. (n.d.). YouTube. Retrieved October 29, 2022, from https://books.google.com.bd/books?id=aIW_QPvx2m4C&pg=PA79&dq=How+To+Apply+Wood+Sealer+On+Wood+Decks&hl=en&sa=X&ved=2ahUKEwjd1uOq6YP7AhWYNLcAHUxUATgQuwV6BAgGEAc#v=onepage&q=How%20To%20Apply%20Wood%20Sealer%20On%20Wood%20Decks&f=false

About Sam Maxi

Hi, this is Sam Maxi. I love talking about woodwork tools and my reviews are mostly based on the experience I have from my work. Apart from reviewing, I am a huge fan of surfing. Also, I love watching horror genre movies.

Follow me: Facebook, Twitter

Leave a Comment