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The 8 Best deck sealer of 2025

Are you trying to find deck sealer among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling deck sealer on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 13 hours of research and did 49 deck sealer tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best deck sealer you can buy today

No. 1
Thompson’s WaterSeal Multi-Surface Waterproofer Stain, Clear, 1 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoors with Thompson’s WaterSeal Clear Multi-Purpose Waterproof Stain. Proven to waterproof concrete, brick, exterior wood and other exterior surfaces.
  • CLEAR STAIN – This outdoor wood stain and sealer provides a clear finish. It will hide the grain, but still allow the texture to show. It provides complete protection while adding enhancing the natural color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new patio, this concrete, brick, wood sealer is easy to apply. Clean the surface thoroughly prior to use for best results.
  • THOMPSON’S – Protecting & maintaining all your exterior surfaces, can easily be simplified if you know where to start. Thompson’s WaterSeal is here to take the edge off, thanks to our one-coat products, informative how-to guides & decades of expertise.
No. 2
Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear
  • MARINE SEALANT: Our liquid formula creates a UV-stable coating for protection against the elements, saltwater spray, and water damage. Marine is a great protector for outdoor furniture, thermally modified wood, and boat docks. Marine is safe for use over open water and is non-hazardous to aquatic life.
  • DECK STAIN: It's water-based, ultra-low VOC, great for enhancing the extended life of your flooring, siding, and porch. The paint forms a water-resistant shield around wood fibers at the cellular level to help preserve the natural color.
  • WATERPROOF WOOD SEALER: The wood used on boat docks, decks, and retaining walls near rivers, lakes, oceans, and ponds is subjected to constant moisture. We crafted a sealer, remove stain, and finish all in one, specifically for these installations.
  • WOOD SEALANT: Our fast-drying protector penetrates wood below the surface, coating the wood fibers at the cellular level, which creates a long-lasting, flexible, breathable barrier. It provides a no-fuss, easy clean-up with soap and water.
  • SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage. When you use Seal-Once, you have the satisfaction of knowing our products will not harm pets, plants, or people.
No. 3
Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer for Wood
  • Requires no primer. Ready Seal is darkest when first applied. It reaches its true color in approximately 14 days. Do not apply Ready Seal over painted or newly stained surfaces. Sealed surfaces inhibit penetration.
  • May be applied using sprayer, roller or brush onto the woods surface.
  • Requires no back brushing and will nerver leave runs, laps, or streaks.
  • Requires no wet-line application, the product will blend itself and can be applied in any temperature range for proper application.
  • Requires no diluting or thinning prior to spray applications.
  • "Goof Proof" application
  • No laps, runs or streaks
  • No back brushing
  • Apply in any temperature
  • Subject to or will include a PaintCare recycling fee in the following states: CA, OR, CT, VT
No. 4
Eco Advance Exterior Wood Siloxane Odorless Spray-On Application Waterproofer, Waterproof Wood Sealer, Safe for Plants, Pets, and People, 1 Gallon
  • Ready-to-Use Formula: Commercial-grade, ready-to-use waterproof wood sealer can be easily applied using a standard garden pump sprayer, eliminating the need for complicated equipment or professional help. Simply spray on for quick and hassle-free application
  • Versatile Protection: Perfect for wood decking, fences, plywood, shingles, siding, and more. Dries clear to preserve the natural look of your wood surfaces while providing effective wood preservation
  • Comprehensive Defense: Provides robust waterproofing and protection for wood surfaces against water damage, oil, stains, de-icing salts, and pool/spa chemicals. Its advanced siloxane formula penetrates deep into the wood, creating a long-lasting barrier that shields your surfaces from the elements
  • Eco-Friendly and Safe: Water-based, non-toxic, non-flammable wood sealant formula that is safe for use around plants, pets, and people. Ensures a safe environment during and after application, making it ideal for family homes and gardens
  • Breathable Barrier: Vapor permeable wood sealer waterproof outdoor spray allows new wood to breathe while providing superior waterproofing protection
No. 5
Olympic WaterGuard 1 gal. Clear Exterior Waterproofing Wood Sealer
  • Ready to use clear sealant and waterproofer
  • Perfect for new wood, pressure-treated wood, weathered wood and wood with a weathered clear or semi-transparent stain
  • Durable sealant that provides waterproofing protection; Coverage up to 350 sq. ft. per gallon
  • Repels water
  • Provides SUNBLOCK UV protection
SaleNo. 7
Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Transparent Waterproofing Wood Stain. Along with adding smooth color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
  • TRANSPARENT WOOD STAIN – This outdoor wood stain provides a transparent finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding boldly tinted color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
  • EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
SaleNo. 8
Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz
  • Stain Your Deck Quickly And Easily - Olympic Smart guard is a patent-pending deck stain product that allows you to simply spray on the sealant eliminating the need for back-brushing your deck.
  • Simple Stain Process - To apply Olympic SmartGuard Deck Sealant simply pour the pouch into a deck sprayer, add 2 gallons of water, and then spray over your deck - it works on traditional wood decks, concrete, and even composite decking!
  • Quick Dry - Dries in 1 hour so you can entertain or spend time outdoors with less hassle and less disruption. Apply this deck sealant quickly and get back to enjoying your day.
  • Use Even After Rain - Can be applied after cleaning or rain ensuring you get to have fun on your deck as quick as possible
  • Durable - Strong durability and waterproofing protection makes Olympic Smart Guard the smart choice for any homeowner who wants to seal their wood or composite deck quickly and still enjoy the outdoors
  • Multi-Surface Use - While many deck sealants only work on wood, Olympic Smart Guard works as a sealant on Wood Decks, Concrete Patios, Masonry, and even weathered Composite Decks
  • A Trusted Name In Deck Stain Technology - The Olympic brand has been trusted to provide quality results since 1938. Its history of excellence and expertise has made Olympic Stains a category leader with a reputation for delivering innovation and durability at an affordable price. Gorgeous results are always guaranteed with Olympic Stains. With a full range of exterior stains, resurfaces and wood cleaners, we have the products you need to complete your next wood staining project right.
No. 9
Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain. Along with adding lightly tinted color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
  • SEMI-TRANSPARENT WOOD STAIN – This outdoor wood stain provides a semi-transparent finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding lightly tinted color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
  • EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
SaleNo. 10
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 (Mahogany #130)
  • Wood Stain and Wood Sealer in one
  • No peeling, cracking, or chipping.
  • Goof Proof application process
  • Ready Seal is designed for exterior use only
  • Approximately 125-150 sq. feet per gallon
No. 11
Roxil Wood Waterproofing Sealer (1.3 Gallon Clear) 10 Year Outdoor Wood Treatment, Wood Preserver for Decking, Fence, Sheds and Furniture
  • Waterproofs wood & maintains natural appearance
  • Protects wood from warping and improves dimensional stability
  • Long lifetime (10+ years on softwood)
  • Water-based, ready for use with brush or spray application
  • Prevents rot and decay resulting from water ingress
No. 12
Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Desert Tan, 1 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Transparent Waterproofing Wood Stain. Along with adding smooth color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
  • TRANSPARENT WOOD STAIN – This outdoor wood stain provides a transparent finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding boldly tinted color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
  • EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
No. 13
Seal Ends Once Premium End Sealer - Liquid Wood Repair - Deck Sealer Applicator - 1 Gallon in Clear
  • WOOD SEALER: Our premium end sealers protect against water, the elements, and deterioration. It's recommended for cut ends of all soft and hardwood lumber, including Cedar, Ipe, Mahogany, Cumaru, Bamboo, Redwood, Brazilian Cherry, and more.
  • PREP DECK: Applying a high-quality end sealer to freshly cut deck boards stabilizes the wood from warping and creates a flexible, breathable barrier. It comes in a clear [SIZE] and can be applied damp on wet.
  • CLEAR WOOD PROTECTOR: This water-based gloss is ultra-low VOC and great for enhancing the extended life of your outdoor wood. Our sealant is the best protection for your lumber and preserves the look of your deck, railings, and steps.
  • WOOD TREATMENT: Seal Ends Once is an odorless and fast-drying finish that is a user-safe choice for DIY projects. It provides a no-fuss, easy clean-up with soap and water so that you can tackle more than one project at a time.
  • SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage. When you use Seal-Once, you have the satisfaction of knowing our products will not harm pets, plants, or people.
No. 14
Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Chestnut Brown, 5 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Transparent Waterproofing Wood Stain. Along with adding smooth color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
  • TRANSPARENT WOOD STAIN – This outdoor wood stain provides a transparent finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding boldly tinted color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
  • EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
No. 15
Seal-Once Nano Penetrating Wood Sealer - Premium Waterproof Sealant - 1 Gallon Clear Wood Sealant
  • CLEAR SEALANT: Our water-based sealer provides top-notch protection against wear and tear in high traffic areas. It’s odorless and ideal for use on wood siding, log homes, swing sets, outdoor furniture, wooden decks and fences, and more.
  • WOOD SEALANT: Unlike many sealers that only form a topcoat, our protector penetrates below the surface to create a long-lasting, water-resistant shield around the wood.
  • FLOOR SEALER APPLICATOR: Our premium gloss is ultra-low VOC and great for enhancing the extended life of your exterior flooring.
  • WATERPROOF SEALER: Ditch the oil-based sealers and choose a UV-stable coating option. Our fast-drying liquid creates a flexible, breathable barrier and provides a no-fuss, easy clean-up with soap and water, as it allows the wood to grey naturally.
  • SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage.
No. 16
Thompson’s WaterSeal Solid Color Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon
37 Consomer Reviews
Thompson’s WaterSeal Solid Color Waterproofing Wood Stain and Sealer, Chestnut Brown, 1 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Solid Color Waterproofing Wood Stain. Along with adding smooth color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
  • COLOR WOOD STAIN – This outdoor wood stain provides a solid finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding boldly tinted color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
  • EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
No. 17
Thompson’s WaterSeal Solid Color Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
  • WATERPROOFING STAIN – Bring out the beauty of your outdoor wood with Thompson’s WaterSeal Solid Color Waterproofing Wood Stain. Along with adding smooth color, it’s a deck sealer that prevents water damage to help you maintain your outdoor living spaces.
  • COLOR WOOD STAIN – This outdoor wood stain provides a solid finish. It will hide the wood grain, but still allow the wood texture to show. It provides complete protection while adding boldly tinted color.
  • FADE RESISTANT FINISH – The advanced polymers in this outdoor wood and deck stain deliver fade-resistant color so it stays looking great year-round. The coating resists UV damage, so you can apply with confidence.
  • EASY TO USE – Whether you’re refinishing an existing fence or putting the finishing touches on a new deck, this waterproofing wood stain is easy to apply. It can be applied to damp or dry wood. Clean the surface thoroughly prior to use for best results.
  • EXCEEDS INDUSTRY STANDARDS – Thompson’s Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.
No. 18
#1 Deck Premium Semi-Transparent Outdoor Wood Stain and Sealer in One - Water Based Wood Stain for Decks, Fences, & Siding - 1 Gallon (Light Walnut)
  • SEMI TRANSPARENT EXTERIOR WOOD STAIN: Our outdoor wood stain and sealer allows the natural wood grain to show through, highlighting the beauty of your decks, fences and sidings and preserving its natural look.
  • ULTIMATE UV PROTECTION DECK SEALER: Shields wood from damaging UV rays, preventing fading & graying. Lasts longer than deck paint for wood decks, siding or fences & is better for the planet because it's water based with less than 50 g/l VOC content.
  • WOOD DECK STAIN AND SEALER IN ONE: This outdoor wood protector serves a dual purpose as both a stain and sealer. It adds color to your wood and seals it, designed to penetrate deep into wood pores for maximum protection and longevity.
  • BEAUTIFUL WOOD STAIN COLORS: Our semi-transparent wood deck stain comes in stunning colors that dry to a flat and natural-looking finish. Enhance the beauty of your exterior wood with our natural, cedar, light walnut, gray, and dark walnut colors.
  • EFFECTIVE ON DAMP WOOD FOR FASTER APPLICATION: Our wood stain sealer works on damp wood, cutting down wait times between cleaning and staining. Once your wood deck is visibly dry, it's ready for staining, speeding up your project.
No. 19
Seal-Once Nano+Poly Penetrating Wood Sealer with Polyurethane - Premium Waterproof Sealant -1 Gallon & Cedar
  • WATER-BASED POLYURETHANE WOOD FINISH: Our sealant provides top-notch protection against wear and tear in high traffic areas. It's odorless and ideal for use on wood siding, log homes, swing sets, outdoor furniture, wooden deck and fence, and more.
  • WOOD SEALANT: Unlike many sealers that only form a topcoat, our protector penetrates below the surface to create a long-lasting, water-resistant shield around the wood. It helps resist wood damage, deterioration, and protects against the elements.
  • FLOOR SEALER APPLICATOR: Our premium gloss is ultra-low VOC and great for enhancing the extended life of your exterior flooring. The sealant can be safely applied around your home, landscaping, vegetation, or over any water area.
  • WATERPROOF SEALER: Ditch the oil-based sealers and choose a UV-stable coating option. Our fast-drying liquid creates a flexible, breathable barrier and provides a no-fuss, easy clean-up with soap and water, as it allows the wood to grey naturally.
  • SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage. When you use Seal-Once, you have the satisfaction of knowing our products will not harm pets, plants, or people.
No. 20
ANCHORSEAL 2 Log & Lumber end Grain Sealer - Prevents up to 90% of end Checks (Drying Splits) on Cut Ends of Wood & Decks. Green Wood Sealer for Turning Blanks & Bowls.
  • Prevents up to 90% or more of end checking (drying splits)
  • Green wood sealer for turning blanks, cookies, wood bowls and carvings
  • Ipe decking end sealer - widely used to protect cut ends of wood decks & steps
  • Water-based , eco-friendly log & lumber end grain sealer
  • End grain sealer of choice among log and lumber industry professionals since 1980

How to choose a good deck sealer

Does the idea of finding a fantastic deck sealer make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in deck sealer. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top deck sealer products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top deck sealer on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top deck sealer brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top deck sealer based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the deck sealer were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good deck sealer, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your deck sealer.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting deck sealer for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our deck sealer. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what deck sealer should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on deck sealer.