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10 Best Deck Sealers 2025 in the United States
#1
Winner
Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer for Wood
The Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer is a solid choice for those looking to protect and enhance the appearance of wooden surfaces. One of its standout strengths is its ease of application; there's no need for priming or back brushing, which simplifies the process for users. This 'goof-proof' product is designed to blend seamlessly without leaving laps or streaks, making it friendly for both novice and experienced users. Additionally, it can be applied in a wide temperature range, ensuring flexibility in usage conditions.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!#2
Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon
Thompson’s WaterSeal Multi-Surface Waterproofer Stain is designed for those who want a versatile, clear finish that provides comprehensive protection for various exterior surfaces including wood, concrete, and brick. Its waterproofing capabilities are highly effective, ensuring that your surfaces remain protected from water damage. Additionally, it offers UV protection, which prevents the color from fading and protects the surface from sun damage. This makes it particularly suitable for decks and outdoor furniture that are exposed to the elements.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!#3
Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear
The Seal-Once Marine Premium Wood Sealer is designed to offer comprehensive protection for outdoor wood surfaces, making it an excellent choice for anyone looking to extend the life of their decks, docks, or outdoor furniture. One of its standout features is its waterproof formula, which creates a strong barrier against moisture, crucial for wood structures exposed to constant wet conditions. Additionally, this sealer boasts UV protection, ensuring that it can withstand the sun's harsh rays while preventing fading and deterioration over time.
Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Customer Highlights
A summary of real customer reviews to highlight what shoppers are saying!Top 10 Best Deck 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
Type of Sealer: Oil-based
Water Resistance: Good
UV Protection: UV Resistant
Mildew and Mold Resistance: Yes
Ease of Application: Easy
Drying Time: Reasonable
Chosen by 1440 this week
Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon
Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon
Type of Sealer: Multi-Surface Waterproofer
Water Resistance: Highly effective
UV Protection: Yes
Durability and Longevity: Durable, may need maintenance
Ease of Application: Single coat, minimal hassle
Drying Time: Reasonable
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
Type of Sealer: wood stain and sealer
Water Resistance: waterproof formula
UV Protection: UV protection
Durability and Longevity: may require frequent reapplication
Ease of Application: user-friendly, easy clean-up
Drying Time: fast-drying
SEAL-ONCE Marine Ready Mix - 1 Gallon Penetrating Wood Sealer Waterproofer & Stain (Coastal Gray). Water-Based, Ultra-Low VOC Formula for high-Moisture Areas to Protect Wood Docks, Decks & Piers.
SEAL-ONCE Marine Ready Mix - 1 Gallon Penetrating Wood Sealer Waterproofer & Stain (Coastal Gray). Water-Based, Ultra-Low VOC Formula for high-Moisture Areas to Protect Wood Docks, Decks & Piers.
Type of Sealer: Marine Ready Mix deck sealer
Water Resistance: suitable for fresh and saltwater
Durability and Longevity: enhancing durability and longevity
Ease of Application: simple to apply
DEFY Extreme Crystal Clear Outdoor Wood Stain and Sealer in One – Clear Waterproof Sealant for Wood Decks, Fences, & Siding, 1 Gal, Made in USA
DEFY Extreme Crystal Clear Outdoor Wood Stain and Sealer in One – Clear Waterproof Sealant for Wood Decks, Fences, & Siding, 1 Gal, Made in USA
Type of Sealer: Wood Sealer
Water Resistance: Moisture Resistant
UV Protection: UV Resistant
Durability and Longevity: Prevents graying and weathering
Ease of Application: User-friendly
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Wet Look Natural Stone Sealer. Durable, Long-Lasting Gloss Protection. Interior and Exterior Pavers, Slate, Sandstone, Travertine, Flagstone, Driveways, Garage Floors, etc. Black Diamond Stoneworks.
Wet Look Natural Stone Sealer. Durable, Long-Lasting Gloss Protection. Interior and Exterior Pavers, Slate, Sandstone, Travertine, Flagstone, Driveways, Garage Floors, etc. Black Diamond Stoneworks.
Type of Sealer: Wet Look Natural Stone Sealer
Water Resistance: solid water resistance
UV Protection: strong UV protection
Mildew and Mold Resistance: resistant to mildew and mold
Durability and Longevity: last over time
Ease of Application: easily applied with spray, brush, roller
Drying Time: varies with environmental conditions
Storm Stain Protector - Hickory, 1 Gallon, Protects Outdoor Wood from Water & UV Rays, Siding, Fence & Deck Stain and Sealer
Storm Stain Protector - Hickory, 1 Gallon, Protects Outdoor Wood from Water & UV Rays, Siding, Fence & Deck Stain and Sealer
Type of Sealer: Penetrating, semi-transparent
Water Resistance: Moisture Resistant
UV Protection: UV Resistant
Mildew and Mold Resistance: Mildew and mold resistant
Durability and Longevity: Oil-based, lasts longer
Ease of Application: Ready-to-use, brush, roller, sprayer
Drying Time: Longer drying time
Ready Seal Stain & Sealer for Wood, Outdoor Deck and Fence, 1 Gallon, Multiple Colors Available – Easy to Apply, No Back Brushing Needed, and UV Protection (Pecan #115)
Ready Seal Stain & Sealer for Wood, Outdoor Deck and Fence, 1 Gallon, Multiple Colors Available – Easy to Apply, No Back Brushing Needed, and UV Protection (Pecan #115)
Type of Sealer: Wood Stain and Sealer
UV Protection: Yes
Durability and Longevity: Resists peeling, cracking, chipping
Ease of Application: No back brushing, 'Goof Proof'
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Buying Guide for the Best Deck Sealers
Choosing the right deck sealer is crucial to protect your deck from the elements and keep it looking great for years. A deck sealer helps to prevent water damage, UV damage, and mildew growth. When selecting a deck sealer, consider the type of wood your deck is made from, the climate you live in, and the level of maintenance you're willing to commit to. Here are some key specifications to consider when choosing a deck sealer.Type of SealerDeck sealers come in different types, including clear sealers, semi-transparent sealers, and solid sealers. Clear sealers provide minimal color change and allow the natural beauty of the wood to show through, but they offer less UV protection. Semi-transparent sealers add a slight tint to the wood, enhancing its natural color while providing better UV protection. Solid sealers offer the most UV protection and come in a variety of colors, but they cover the wood grain completely. Choose a clear sealer if you want to maintain the natural look of the wood, a semi-transparent sealer for a balance of color and protection, and a solid sealer if you need maximum protection and don't mind covering the wood grain.
Water ResistanceWater resistance is a critical factor in a deck sealer as it helps to prevent water from penetrating the wood, which can lead to rot and decay. Sealers with high water resistance will bead water on the surface, while those with lower resistance may allow water to soak in. If you live in an area with heavy rainfall or high humidity, opt for a sealer with excellent water resistance to ensure your deck remains protected.
UV ProtectionUV protection is important to prevent the wood from fading and becoming damaged by the sun's rays. Sealers with UV inhibitors will help to maintain the color and integrity of the wood over time. If your deck is exposed to a lot of direct sunlight, choose a sealer with strong UV protection to keep it looking fresh and to extend its lifespan.
Mildew and Mold ResistanceMildew and mold resistance is essential for preventing the growth of fungi that can discolor and damage your deck. Some sealers contain mildewcides that inhibit the growth of mold and mildew. If you live in a humid or damp climate, or if your deck is in a shaded area where it doesn't dry out quickly, look for a sealer with good mildew and mold resistance.
Durability and LongevityDurability and longevity refer to how long the sealer will last before it needs to be reapplied. Some sealers may last only a year, while others can last several years. If you prefer low maintenance, choose a sealer with a longer lifespan. However, keep in mind that more durable sealers may require more thorough preparation and application.
Ease of ApplicationEase of application is an important consideration, especially if you plan to apply the sealer yourself. Some sealers are easier to apply with a brush, roller, or sprayer, while others may require more effort to achieve an even coat. If you're a DIY enthusiast, look for a sealer that is user-friendly and comes with clear application instructions.
Drying TimeDrying time can vary between different sealers, with some drying in a few hours and others taking up to 48 hours. Faster drying times are convenient if you need to use your deck soon after sealing, but slower drying times may provide a more durable finish. Consider your schedule and how quickly you need the deck to be ready for use when choosing a sealer.