10 Best Deck Sealer of March 2024

List of Top Rated Deck Sealer from thousands of customer reviews & feedback.

Updated On Mar 2024

996 Reviews Studied

By Customer Ratings

1
Image
Ready Seal 512 5-Gallon Pail Natural Cedar Exterior Stain and Sealer for Wood Read Review

  • 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.
  • Subject to or will include a PaintCare recycling fee in the following states: CT, or VT. Not available in CA.
  • "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
Image
Eco Advance EAWOD16CON 16-oz Exterior Wood Siloxane Water Repellent Liquid Concentrate, White But Dries Clear Read Review

  • Liquid concentrate formula makes 1 gallon of commercial grade water repellent
  • Safe around plants, people and pets
  • Eco-safe, low VOC, low odor formula is safe to walk on in less than 2 hours
  • Ideal for use on wood decking, wood fences, plywood, wood shingles, wood siding and much more
  • Vapor permeable (breathable) water repellent can be used on new wood

3
Image
THOMPSONS WATERSEAL 21802 VOC Wood Protector, 1.2-Gallon Read Review

  • Item Weight: 9.65 lb
  • Country of Origin: China
  • Brand name: Thompson's Water Seal
  • Item Dimensions: 4.1"L x 6.6"W x 11.0"H

4
Image
DEFY Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon Read Review

  • 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.
  • EASY TO MAINTAIN – When it’s time to do a maintenance coat, there’s no need to strip the surface. Make sure the surface is clean, then apply a single maintenance coat of DEFY Composite Waterproofing Sealer.

5
Image
Olympic Stain 79551 Maximum Wood Stain and Sealer, 1 Gallon, Semi-Transparent Stain, Cedar Read Review

  • Enhanced waterproofing protection to help make sure your wood is protected from cracking due to water

6
Image
THOMPSONS WATERSEAL TH.042851-16 Semi-Transparent Waterproofing Stain, Woodland Cedar Read Review

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

7
Image
Thompsons WaterSeal TH.A21711-16 Advanced Natural Wood Protector, gallon Read Review

  • Long-Lasting Coating Resists Mildew Growth, UV Damage and Fading
  • One Day Project - Applies to both damp or dry wood in just one coat
  • Water-Based for Easy Soap and Water Clean Up
  • Waterproofer product
  • Use on decks, fences, exterior furniture and exterior wood
  • Maximum strength one coat waterproofer
  • Advanced protection against water damage
  • Exceptional, long lasting beading and waterproofing

8
Image
Olympic Stain Waterguard Waterproofing Sealant for Wood, Concrete, Brick, Clear, 1-Gallon Read Review

  • High quality product
  • High durable product
  • Manufactured in United States

9
Image
THOMPSONS WATERSEAL TH.041811-16 Transparent Waterproofing Stain, Harvest Gold Read Review

  • Prevents Water Damage
  • Advanced Polymers Provide Fade Resistant Color
  • Coating Resists Mildew and UV Damage
  • Applies to Freshly Cleaned Damp or Dry Wood
  • Exceeds Industry Standard ASTM D-4446 for Waterproofing Wood

10
Image
SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water-Based, Ultra-low VOC formula for high-m... Read Review

  • Specially Formulated to be Applied Around & Over Fresh or Salt Water
  • Water-based, Low VOC, Non-toxic; Safe for People, Pets, Plants & Marine Life
  • Superior Nanotechnology Penetrates Deep, Coating Wood Fibers at the Cellular Level
  • Performs like an Oil-Based Sealer Without any Harmful Chemicals or Side Effects
  • Creates a Flexible, Breathable Barrier that Enhances, Stabilizes & Protects Wood