10 Best deck sealer in Canada

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Last Updated - 2025/05/11

Best Choice

01
Ready Seal

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

9.7 Simple to use

8.9 worth the money

8.4 Long life
Main highlights

Requires no primerReady Seal is darkest when first applied. It reaches its true color in approximately 14 days
Requires no back brushing or wet-line application
May be applied using sprayer, roller or brush.Can be applied wet-on-wet OR wet-on-dry with no lapping
Do not apply Ready Seal over painted or newly stained surfaces. Sealed surfaces inhibit penetration
Can be applied in any temperature range
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9.9

Exceptional

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02
DEFY

Composite Deck Sealer by DEFY Wood Stain
Main highlights

Waterproof Sealant - DEFY Composite Deck Sealer offers top-notch waterproofing for your weathered composite wood surfaces, extending their lifespan and maintaining their beauty.
Versatile Use - Perfect for a variety of composite wood surfaces, including decks, fences, and outdoor furniture. Our clear waterproof sealant ensures wood remains protected and looks great for years.
Revitalizes Weathered Decks - Designed to refresh and restore weathered composite wood, DEFY Composite Deck Sealer breathes new life into tired, worn surfaces, enhancing appearance and durability.
Natural, Clear Finish - Our wood sealer outdoor waterproof coating preserves the natural look of your deck, providing a clear sealant waterproof layer of protection without changing the color.
Easy Application & Cleanup - This water-based, outdoor wood sealer is 250 VOC compliant, making it a safer choice for the environment. It also offers easy cleanup with just soap and water.
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9.6

Exceptional

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03
Seal-Once

SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low VOC formula for high-moisture areas to protect wood docks, decks, piers & retaining walls.

8.4 Simple to use

8.0 Long life

8.0 worth the money
Main highlights

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.
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.
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.
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.
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9.5

Excellent

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04
ANCHORSEAL 2

ANCHORSEAL 2 Hybrid Log & Lumber end grain sealer (1 Quart) - Water-based wax & polymer prevents up to 90% of end checking (drying splits) on cut ends. Green wood sealer for turning blanks & bowls. … (1 Quart)

Free Shipping
Main highlights

The sealer of choice
Protects against end grain checking
Protect your wood investment
New and improved
Nearly 30 years of experience in making this product
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9.4

Excellent

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Value for Money

05
Liquid Rubber

Liquid Rubber Smooth Polyurethane Deck Coating - 10X Stronger Than Paint, Waterproof Solar Protection, Durable Surface Sealant for Wood, Concrete, Plywood, and More, Stone Gray, 1 Gallon

Free Shipping

9.5 Simple to use

9.3 lasts a long time

8.9 Water Resistant
Main highlights

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
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
EASY TO APPLY - Apply using a conventional brush, roller, or single component sprayer; no mixing required
COVERAGE - 40 square feet per gallon, final coverage after 3-4 generous coats. 30 square feet per gallon for high traffic areas (4-5 generous coats)
APPLICATION - Avoid hot, intense direct sunlight during application. Apply above 10 degrees Celsius (50 degrees Fahrenheit). Do not apply later in the day if dew is forecast
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9.2

Excellent

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06
Magimate

Deck Stain Brush Applicator by Magimate - Thick Soft Large Paint Brush Head Threaded for Extension to Apply Stain Sealers on Wood Deck Floor Fence Walls - 7 Inch Wide

Free Shipping

8.9 Simple to clean

8.9 Easy to grip

8.2 worth the money
Main highlights

VERSATILE and EFFICIENT: This 7-inch mega Staining Brush works extensively for various rough surfaces, patio concrete, cedar siding and log stain. Specifically efficient for very large decks, back brushing deck stain, old weathered decks with crevices, masonry, brickwork and all other outdoor, interior/ exterior big painting projects.
THICK and WIDE: Interlocked Synthetic Bristle Filament, thick Paint Brush, High Capacity to apply wood brightener, deck sealer, oils, water-based stains, waterproof, latex, emulsion, limewash, seal/ sealant on large surface areas. Easy to control in lightweight application and heavy paints. A paint materials saver. Stainless Ferrule, makes the brush more durable.
QUALITY BRUSHES: No Loss of Bristle. No Paint Streaks. Easy to Clean in proper way for repeated use. Quality Guaranteed.
FLEXIBLE and STRESSED: The Stain Brush is soft enough to spread paint evenly, gets in between deck boards and cracks with ease, giving you a smooth stain application finish. The brush filament features medium stiffness stress, flexible to force stains on wood, floor, decking, docks, shed and fence. A labor and time saver.
BRUSH SPECS: 7” (180mm) wide x 2” (50mm) thick. Giant Block Stain Brush. This large brush with threaded handle can be attached to an extension pole or a long broom handle. Stand Stain Brush Applicator, free up your back and knees as you paint deck floor and wall ceilings.
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9.1

Excellent

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07
Thompson's Water Seal

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

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.
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.
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.
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.
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9.0

Excellent

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08
Seal-Once

SEAL-ONCE Nano Penetrating Wood Sealer & Stain - 1 Gallon. Water-Based, Low-VOC waterproofer for Fences, siding, Beams, Outdoor Furniture & Log Homes.

Free Shipping
Main highlights

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.
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.
FLOOR SEALER APPLICATOR: Our premium gloss is ultra-low VOC and great for enhancing the extended life of your exterior flooring.
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.
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8.9

Very Good

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09
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, Redwood
Main highlights

UV & WEATHER RESISTANT - Protects against fading, water damage, and harsh outdoor conditions.
STAIN & SEALER IN ONE - Enhances wood’s natural beauty while providing durable, waterproof protection.
SELF-BLENDING FORMULA - Ensures an even, streak-free finish with no lap marks.
NO PRIMING OR DILUTING - Easy application with no need for a primer, thinning, or back-brushing.
IDEAL FOR EXTERIOR WOOD - Perfect for decks, fences, siding, outdoor furniture, and more.
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8.8

Very Good

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10
Seal-Once

Seal-Once Nano+Poly Penetrating Wood Sealer with Polyurethane - Premium Waterproof Sealant -1 Gallon & Cedar

Free Shipping
Main highlights

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.
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.
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.
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.
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.
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8.5

Good

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