We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy

10 Best Deck Wood Water Sealers 2025 in the United States

#1

Winner

9.8 score

Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer for Wood

Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer for Wood

Ready Seal

9.8 score

Check price

The Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer is an oil-based product designed for wood surfaces, particularly decks. It is formulated to provide a durable finish that also offers UV protection, keeping the wood from fading under sunlight. The natural cedar color enhances the aesthetic of wooden surfaces, and the finish is flat, contributing to a more natural look.

Rating
9.8
Chosen by1,146
Type of Sealer
Water Repellency
Durability

Most important from
10126 reviews

Type of Sealer
The oil-based formula penetrates deeply into the wood, providing excellent protection and longevity.
Water Repellency
Despite being oil-based, the product dries quickly and leaves a beautiful, protective finish that repels water effectively.
Durability
The oil-based formula penetrates deeply into the wood, providing excellent protection and longevity.
Ease of Application
Ready Seal truly lives up to its 'goof-proof' promise, making it incredibly easy to apply without worrying about runs or streaks.
Finish
The natural cedar color enhances the wood's appearance, making it look vibrant and well-maintained.
#2
9.6 score

Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear

Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear

Seal-Once

9.6 score

Check price

The Seal-Once Marine Premium Wood Sealer stands out as a versatile and reliable option for protecting wood surfaces exposed to harsh environmental conditions. This sealer combines the features of a wood stain and a sealant, making it a convenient choice for those looking to enhance both the appearance and durability of their outdoor wood structures like decks and boat docks. Its ability to create a UV-stable coating helps protect against sun damage, while its water-repellent properties ensure wood remains safeguarded from constant moisture exposure, which is crucial for areas near water bodies.

Rating
9.6
Water Repellency
Durability
Ease of Application

Most important from
1862 reviews

Water Repellency
Water beads up and runs right off the wood, showcasing the excellent water-repellent properties.
Durability
Following the instructions carefully and preparing the wood properly results in long-lasting protection and a great finish.
Ease of Application
The sealer goes on like a dream, offering consistent coverage and easy cleanup thanks to its water-based formula.
Finish
Following the instructions carefully and preparing the wood properly results in long-lasting protection and a great finish.
#3
9.3 score

Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

Thompson's Water Seal

9.3 score

Check price

Thompson’s WaterSeal Multi-Surface Waterproofer Stain is a versatile product designed to protect various outdoor surfaces such as wood, concrete, and brick. One of its main attractions is the clear stain finish, which enhances the natural color of the wood without hiding its texture. This can be particularly appealing if you want to maintain the natural look of your wood surfaces while still ensuring protection.

Rating
9.3
Type of Sealer
UV Protection
Water Repellency

Most important from
4656 reviews

Type of Sealer
Thompson's WaterSeal Multi-Surface Waterproofer Stain in an aerosol can is a game-changer for protecting and enhancing outdoor surfaces, providing a consistent and smooth spray for even coverage.
UV Protection
The product's durability is impressive, with the finish looking as good as new even after several months, thanks to its UV-resistant formula that prevents fading or peeling.
Water Repellency
The clear stain enhances the natural beauty of the wood while providing a robust waterproofing barrier, with rainwater beading up and rolling off to protect against moisture damage.
Durability
The product's durability is impressive, with the finish looking as good as new even after several months, thanks to its UV-resistant formula that prevents fading or peeling.
Ease of Application
The ease of application with the aerosol can saves time and effort compared to traditional methods, making it perfect for those with mobility and balance issues.
Finish
The clear stain enhances the natural beauty of the wood while providing a robust waterproofing barrier, with rainwater beading up and rolling off to protect against moisture damage.

Top 10 Best Deck Wood Water Sealers 2025 in the United States

Sponsored

Slide 1

Country Chic Paint

Furniture Glaze - Antique Patina Special Effects Glaze for Chalk Style Furniture Paint, Eco-Friendly Wood Stain, 6 Color Choices - Smoky Quartz [Chocolate Brown] - Pint (16 oz)

Check price

#1

Winner

9.8 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Ready Seal

Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer for Wood

Type of Sealer: Oil-based
UV Protection: Yes
Durability: Durable
Ease of Application: Easy
Finish: Flat

Check price

Chosen by 1146 this week

Sponsored

Slide 1

Country Chic Paint

Furniture Glaze - Antique Patina Special Effects Glaze for Chalk Style Furniture Paint, Eco-Friendly Wood Stain, 6 Color Choices - Smoky Quartz [Chocolate Brown] - Pint (16 oz)

Check price

#2

9.6 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Seal-Once

Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear

Type of Sealer: Wood stain and sealant
UV Protection: UV-stable coating
Water Repellency: Water-repellent properties
Mold and Mildew Resistance: Mold and mildew resistance
Ease of Application: User-friendly formula
Finish: Clear finish

Check price

#3

9.3 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Thompson's Water Seal

Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon

Type of Sealer: Multi-Surface
UV Protection: Yes
Water Repellency: Yes
Mold and Mildew Resistance: Yes
Durability: Yes
Ease of Application: Straightforward
Finish: Clear Stain

Check price

#4

9.1 score

Slide 1Slide 2Slide 3Slide 4Slide 5

DEFY

DEFY Extreme 1 Gallon Semi-Transparent Exterior Wood Stain, Butternut

Type of Sealer: Semi-transparent waterproof
UV Protection: Zinc nano-particles block UV
Water Repellency: Solid water repellency
Mold and Mildew Resistance: Effective mold and mildew resistance
Ease of Application: User-friendly; sprayer, brush, or roller
Finish: Matte

Check price

10% OFF
#5

8.8 score

Slide 1

Rain Guard Water Sealers

Rain Guard Water Sealers SP-8005 Wood Sealer 5 Gallon - Clear Natural Finish - Deep Penetrating Water Repellent Protection for All Wood Surfaces - Water-Based Silane/Siloxane

Type of Sealer: Water-based silane/siloxane
UV Protection: Yes
Water Repellency: Excellent
Durability: Long-lasting
Ease of Application: Easy
Finish: Clear and natural

Check price

Related Products

#6

8.5 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Norkan, Inc.

Ready Seal Stain & Sealer for Wood, Outdoor Deck and Fence - All-in-One Exterior Wood Stain and Waterproofing Sealant – Easy to Apply, No Back Brushing Needed, with UV Protection - 1 Gallon, Mahogany

Check price

5% OFF
#7

8.2 score

Slide 1Slide 2

Storm System

Storm System Protector - Hickory, 1 Gallon, Protects Outdoor Wood from Water & UV Rays, Siding, Fence & Deck Stain and Sealer, Outdoor Wood Stain and Sealer

Check price

11% OFF
#8

7.9 score

Slide 1Slide 2Slide 3Slide 4Slide 5

DEFY

DEFY Ultra Semi-Transparent Outdoor Wood Stain and Sealer in One – Natural Pine, 1 Gallon, Deck Stain and Sealer | Rich Color and Satin Sheen for All Wood Types

Check price

10% OFF
#9

7.6 score

Slide 1Slide 2Slide 3Slide 4Slide 5

Thompson's Water Seal

Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon

Check price

#10

7.3 score

Slide 1Slide 2Slide 3Slide 4Slide 5

DEFY

Defy Composite Deck Waterproofing Sealer 1 Gallon

Check price

17% OFF
How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Buying Guide for the Best Deck Wood Water Sealers

Choosing the right deck wood water sealer is crucial to protect your deck from the elements and extend its lifespan. A good sealer will prevent water damage, resist mold and mildew, and maintain the wood's natural beauty. When selecting a sealer, consider the type of wood, the climate in your area, and how much maintenance you're willing to perform. Here are some key specifications to help you make an informed decision.
Type of SealerThere are different types of sealers, including oil-based, water-based, and hybrid sealers. Oil-based sealers penetrate deeply into the wood and provide long-lasting protection, making them ideal for older decks or hardwoods. Water-based sealers are easier to clean up and are more environmentally friendly, suitable for newer decks or softwoods. Hybrid sealers combine the benefits of both oil and water-based sealers. Choose the type based on your wood type and environmental preferences.
UV ProtectionUV protection is important to prevent the wood from fading and becoming brittle due to sun exposure. Sealers with UV inhibitors will help maintain the wood's color and integrity over time. If your deck is in a sunny area, opt for a sealer with strong UV protection to keep it looking good and structurally sound.
Water RepellencyWater repellency is a key feature of any deck sealer, as it prevents water from soaking into the wood and causing damage like warping, cracking, and rot. Sealers with high water repellency will form a protective barrier on the surface of the wood. If your deck is exposed to a lot of rain or humidity, choose a sealer with excellent water repellency to ensure maximum protection.
Mold and Mildew ResistanceMold and mildew resistance is crucial for maintaining the health and appearance of your deck. Sealers with anti-microbial properties will inhibit the growth of mold and mildew, which can cause discoloration and decay. If you live in a damp or humid climate, prioritize a sealer with strong mold and mildew resistance.
DurabilityDurability refers to how long the sealer will last before needing reapplication. Some sealers offer protection for several years, while others may need to be reapplied annually. Consider how much maintenance you're willing to perform and choose a sealer with a durability that matches your needs. For low-maintenance options, look for sealers with longer-lasting formulas.
Ease of ApplicationEase of application can vary between sealers. Some are simple to apply with a brush or roller, while others may require more effort or specific tools. If you're planning to apply the sealer yourself, look for one that is user-friendly and comes with clear instructions. This will make the process smoother and ensure better results.
FinishThe finish of the sealer can affect the appearance of your deck. Sealers come in various finishes, such as clear, semi-transparent, and solid. Clear finishes preserve the natural look of the wood, while semi-transparent finishes add a hint of color and highlight the wood grain. Solid finishes provide a more opaque color and can hide imperfections. Choose a finish based on your aesthetic preferences and the condition of your deck.

FAQ