Top 10

Best Deck Sealants

of November 2022
Rank Product Rating
1
Seal-Once Nano+Poly Penetrating Wood Sealer with Polyurethane - Premium Waterproof Sealant -1 Gallon & Clear
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Product Highlights
  • 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.
  • 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.

$77.75 $60.98
2
Seal-Once Marine Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear
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Product Highlights
  • 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.

$66.98
3
DEFY Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon
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Product Highlights
  • WATER-BASED, CLEAR COMPOSITE DECK SEALER – This water based, clear wood and deck sealer protects composite wood from the harmful effects of the sun, while adding little to no change to the natural look of your composite deck.
  • FORTIFIED WITH ZINC NANO-PARTICLE TECHNOLOGY– It’s like sunscreen for your wood. Tiny zinc particles dispersed throughout the stain reflect damaging UV rays, preventing premature graying and color loss.
  • EXTREMELY DURABLE, HIGH QUALITY RESINS – DEFY Composite Deck Sealer is made with the highest quality resins available that have better resistance to fading and darkening. The result is a quality sealer that typically lasts a season or two longer than competitive products.
  • QUALITY THAT LASTS – DEFY Extreme Composite Deck Sealer is a premium-grade, clear deck sealer that is built to last. Keep your weathered composite deck, or fence looking great for longer by using DEFY.

$55.13
4
Olympic Stain Smartguard Concentrated Multi-Surface Sealant, Clear, 15oz
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Product Highlights
  • 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

$22.20
5
Seal-Once Nano Penetrating Wood Sealer - Premium Waterproof Sealant - 1 Gallon Clear Wood Sealant
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Product Highlights
  • 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.

$56.98 $49.94
6
Olympic Maximum Wood Sealer For Decks, Fences, Siding, and Other Outdoor Wood Structures, Transparent, Clear, 1 Gallon
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Product Highlights
  • Weather-ready application allows you to clean and stain on the same day in temperatures down to 35 degrees fahrenheight, deck is ready for rain in 8 hours
  • Penetrating formula delivers enhanced protection; clear waterproofing deck and fence sealant
  • Easily clean up with soap and water
  • For best results apply one thin, even coat

$38.98
7
Liquid Rubber Textured Polyurethane Deck Coating - Solar Protection Deck Sealant, Non-Toxic Multi-Surface Waterproofing Membrane, Easy to Apply, Stone Gray, 1 Gallon
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Product Highlights
  • INNOVATIVE PROTECTIVE DECK COATINGS - Liquid Rubber Polyurethane Deck Coating is a high-performance polyurethane coating with a hard, durable & waterproof surface with excellent UV stability
  • INNOVATIVE PROTECTIVE DECK COATINGS - Liquid Rubber Polyurethane Deck Coating is a high-performance polyurethane coating with a hard, durable & waterproof surface with excellent UV stability
  • POLYURETHANE COATING FOR - Deck protection, on concrete or wood walkways, non-corroded metal structures, pool decks, indoor/outdoor floors, fences, baseboards, plywood surfaces, and more
  • POLYURETHANE COATING FOR - Deck & dock protection, on concrete or wood walkways, non-corroded metal structures, pool decks, indoor/outdoor floors, fences, baseboards, plywood surfaces, and more

$89.95 $79.99
8
Deck O Seal Gray Deck-O-Seal 4701032
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Product Highlights

$144.97
9
Olympic Maximum Wood Stain And Sealer For Decks, Fences, Siding, and Other Outdoor Wood Structures, Semi-Transparent, Redwood Naturaltone, 1 Gallon
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Product Highlights
  • Weather-ready application allows you to clean and stain on the same day in temperatures down to 35 degrees fahrenheight, deck is ready for rain in 8 hours
  • Durable formula features advanced SunBlock UV defense and enhanced water proofing protection
  • Exclusive Scuff Guard technology and cleans easily with soap and water, eliminating the need for harsh chemicals
  • Durable wood stain and sealant protects and beautifies in one step

$42.69
10
Serveon Sealants H2Seal H2100 All Purpose Penetrating Stone Sealer -Professional Grade Indoor/Outdoor -For Natural Stone, Concrete, Tile, Grout –Protection for Pool Decks, Patios, Pathway H2100 (1 Qt)
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Product Highlights
  • Prolongs Stone Life While Retaining the Natural Look: H2Seal's natural stone sealer provides an impenetrable barrier from moisture and saltwater while discouraging many stains and preventing efflorescence. It does not change the surface color. Thanks to Serveon's highly effective natural stone sealer, you'll spend less time cleaning and have more time relishing your decorative outdoor landscapes.
  • Easy to Apply and Forgiving: H2Seal was formulated for the DIY person. Sealers can be challenging to apply successfully. Too little, too much, to hot, to cold, H2Seal’s application friendly properties are designed to adapt to make your application a success.
  • Really Convenient: H2Seal can easily be used on most natural stone, flagstone, slate, travertine, sandstone, moss rock, limestone, etc. plus concrete and concrete products, protecting your patio, floors, swimming pool coping, and landscaping. And it cures fast, normally allowing traffic in less than one hour.
  • Versatile: H2Seals commitment to cross-linking chemistry it to be a powerful grout sealer with its advanced siliconate water and efflorescence repellent technology. H2Seal penetrates into the grout strengthening the surface matrix from chipping and cracking while creating long lasting protection.

$19.97