Best Cedar Deck Sealer

Peter | 07-01-2026

You will find our hand-picked selection of Best Cedar Deck Sealer below. You have a wide variety of choices of brands such as Ready Seal,Seal-Once,Thompson’s,OLYMPIC available to you as a result of the fact that each one of them has a unique pricing, look, and feel. Continue reading for an in-depth analysis in our Best Cedar Deck Sealer buying guide!

Our experts tested a variety of Best Cedar Deck Sealer on the market. Right at the top of the list is Ready Seal Best Cedar Deck Sealer. Check out some more of our favorites below, and read some valuable insight from our experienced editors.

Editor's Choice
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
Premium Pick
Cedarcide Cedarshield (1 Gallon) | Non-Toxic Wood Treatment and Stabilizer | Protects Wood from
Cedarcide Cedarshield (1 Gallon) | Non-Toxic Wood Treatment and Stabilizer | Protects Wood from
Budget Pick
SaverSystems #1 Deck Premium Semi-Transparent Outdoor Wood Stain and Sealer in One - Water Based
SaverSystems #1 Deck Premium Semi-Transparent Outdoor Wood Stain and Sealer in One - Water Based

Top 10 Best Cedar Deck Sealer

We researched and compared the top products in the Best Cedar Deck Sealer category to provide you with these recommendations.

1. 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
9.8

Ready Seal

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  • 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

2. SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low

SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low
8

Seal-once

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  • 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.

3. SEAL-ONCE NANO+POLY Penetrating Wood Sealer with Polyurethane - 1 Gallon. Water-based, Low-VOC,

SEAL-ONCE NANO+POLY Penetrating Wood Sealer with Polyurethane - 1 Gallon. Water-based, Low-VOC,
8.5

Seal-once

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  • 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 protect 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.

4. Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon

Thompson’s WaterSeal Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
8.7

Thompson's

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  • WATERPROOFING STAIN Bring out the beauty of your outdoor wood with Thompsons WaterSeal Transparent Waterproofing Wood Stain. Along with adding smooth color, its 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 youre 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 Thompsons Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.

5. Olympic WaterGuard 1 gal. Woodland Cedar Semi-Transparent Wood Stain and Sealer

Olympic WaterGuard 1 gal. Woodland Cedar Semi-Transparent Wood Stain and Sealer
8.9

Olympic

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  • Ready mix, ready to use semi-transparent wood stain and sealant all-in-one
  • Waterproofing deck and fence protection, dries in 24 hours
  • Durable water based sealant that provides waterproofing protection with resistant coating
  • SUNBLOCK UV defense
  • Exclusive SCUFF GUARD Technology
  • Protects up to 3 years on decks and 4 years on fences and siding
  • Use on exterior wood surfaces including decks, fences, siding, railings, outdoor furniture and other wood or previously coated wood with a weathered clear sealant or semi-transparent stain
  • Water based stain cleans up with just soap and water
  • Coverage approximately 250-350 sq. ft. per gallon depending on wood texture

6. Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon

Thompson’s WaterSeal Semi-Transparent Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
8.5

Thompson's

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  • WATERPROOFING STAIN Bring out the beauty of your outdoor wood with Thompsons WaterSeal Semi-Transparent Waterproofing Wood Stain. Along with adding lightly tinted color, its 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 youre 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 Thompsons Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.

7. Thompson’s WaterSeal Solid Color Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon

Thompson’s WaterSeal Solid Color Waterproofing Wood Stain and Sealer, Natural Cedar, 1 Gallon
7.9

Thompson's

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  • WATERPROOFING STAIN Bring out the beauty of your outdoor wood with Thompsons WaterSeal Solid Color Waterproofing Wood Stain. Along with adding smooth color, its 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 youre 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 Thompsons Waterproofing Exterior Wood Stain exceeds Industry Standard ASTM D-4446 for waterproofing wood.

8. Cedarcide Cedarshield (1 Gallon) | Non-Toxic Wood Treatment and Stabilizer | Protects Wood from

Cedarcide Cedarshield (1 Gallon) | Non-Toxic Wood Treatment and Stabilizer | Protects Wood from
9.5

Cedarcide

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  • Perfect for fences, decks, woodwork, garden boxes, docks, and outdoor furniture USE ON ALL WOOD TYPES: This universal product can be used on all types of wood including oak, cherry wood, pint, cedar and all other wood types. Cedarshield will also work on all wood types whether it is soft, hard, new, or old wood.
  • FAST DRY TIME: Cedarshield has one of the quickest turn around times with only needing 72 hours to dry. Spend less time waiting and more time completing and enjoying projects.
  • BUILDS A MOISTURE-RESISTANT BARRIER: Cedarshield will create a moisture resistant barrier that will keep out all moisture to ensure the longevity and health of your wood. Keep alcohol, grease, food oil, acid, water, and other potentially damaging moistures from ruining the surface of the wood.
  • LONG LASTING TREATMENTS: Spend less time worrying about your wood projects, and more time enjoying them. Cedarshield will last you and your family up to 8 years before your next treatment.
  • USE TO PROTECT DOCKS, DECKS, FENCES & MORE: Cedarshield is the perfect addition to your big wood project like docks, decks, and fences. Make your project built to last for a lifetime by covering it with Cedarshield.

9. DEFY Extreme Wood Stain and Sealer in One - 1 Gallon Semi-Transparent Waterproof Coating for All

  • ADVANCED PROTECTION FOR OUTDOOR WOOD: DEFY Extreme wood stains offer high-performance deck stain and sealer products that prevent graying & weathering while also extending the life of exterior wood surfaces
  • LONG-LASTING WOOD SEALANT: This wood sealer protects your wood from moisture damage while the zinc nano-particles block harmful UV rays to prevent sun damage; ensuring lasting preservation of the wood's natural beauty in all weather conditions
  • EASY APPLICATION & MAINTENANCE: Apply this waterproof coating with a sprayer, brush, or roller; easily clean up spills or errors with mild soap & water; reapply when water absorption is visible; 1 gal covers approximately 100-150 sq. ft.
  • VERSATILE: Extreme wood stain has multiple use applications, whether that be a fence stain, deck sealer, or a stain for wood furniture, our product is designed to protect against the elements wherever you need a waterproof wood sealer
  • MADE IN THE USA: DEFY Extreme is proudly made in the USA with high-quality ingredients; our goal is to provide a reliable exterior wood stain sealer that uses innovative technology with tested formulas for superior outdoor wood protection

10. SaverSystems #1 Deck Premium Semi-Transparent Outdoor Wood Stain and Sealer in One - Water Based

SaverSystems #1 Deck Premium Semi-Transparent Outdoor Wood Stain and Sealer in One - Water Based
9.1

Saversystems

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  • 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.

Peter

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