Find The Best Outdoor Wood Sealer

1. Minwax Helmsman Water Based Spar Urethane, Quart, Gloss

• PROTECTIVE CLEAR FINISH – Minwax Helmsman Water Based Spar Urethane is a crystal clear wood finish that is specially formulated to protect against nature’s toughest conditions.
• EFFECTIVE YEAR ROUND – This wood varnish forms a protective barrier against rain and moisture to protect your projects and keep them looking their best. Special oils allow the finish to expand & contract with the wood as seasons and temperatures change.
• VERSATILE – Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture and more. It’s a versatile water-based spar urethane that dries quickly and cleans up easily with warm water.
• GLOSS FINISH – Give your wood projects a sleek finish with this gloss clear varnish. It not only protects the natural beauty of the wood, but offers a shiny, sleek sheen for a modern look. It’s ideal for use over light colored woods and stains.
• A BRAND YOU CAN TRUST – Minwax is America’s leading brand of wood finishing and wood care products. Since 1904, we have been inspiring consumers to Keep on Finishing. We offer consumers a complete line of products to meet every wood finishing need.
• Spar urethane
• Specially formulated protective clear finish for exterior or interior wood that is exposed to sunlight, water or temperature changes
• Contains UV blockers to reduce the sun’s graying and fading effects
• Forms a protective barrier against rain and moisture
• Special oils allow the finish to expand and contract with the wood as seasons and temperature changes

2. Eco Advance Wood Siloxane Waterproofer – 1 Gallon

• Ready to use commercial grade formula can be applied using a standard garden pump sprayer
• Ideal for use on wood decking, wood fences, plywood, wood shingles, wood siding and much more
• Protects against water damage, oil, stains, mold, mildew, de-icing salts, and pool/spa chemicals
• Water-based, non-toxic, non-flammable formula does not harm landscape plantings
• Vapor permeable (breathable) water proofer can be used on new wood

3. 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.
• 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.

4. Rain Guard Water Sealers – Wood Sealer – Penetrating Water Repellent Protection for All Porous Wood Surfaces – Water-Based Silane/Siloxane Sealant

• PREMIUM WOOD SEALER: Protect, restore, and extend the life of your home with Rainguard Water Sealers Wood Sealer! Formulated to penetrate deep into the surface, Wood Sealer is a water-based silane/siloxane water repellent that helps inhibit moisture damage. This premium-grade water sealer for wood is safe to use indoors or outdoors. It dries to an invisible stain resistant finish that won’t yellow or alter surface texture or appearance.
• LONG LASTING PROTECTION: Engineered with Micro-Lok! This proprietary ingredient ensures sealer absorption and creates a long-lasting filmless hydrophobic barrier against weathering, salt, dirt, freezing temperatures, UV light, wind-driven rain, and other damaging elements. Rainguard Wood Sealer is the ideal weatherproof sealant for all non-treated and unpainted wood surfaces including, wooden floors, decks, walkways, outdoor furniture, and fences.
• SPRAY FORMULATION: Ready to use right out of the bottle! Rainguard Water Sealers Wood Sealer is premixed and in a spray bottle for easy and convenient application. Before use, shake the bottle lightly to disperse any settled material. Perfect for small projects and touchups, 16oz of this impregnating wood waterproofer coats, seals, and protects up to 40 square feet. Get more coverage with Rainguard Water Sealers’ 1-and-5 gallon ready to use and concentrated formulations.
• EASY APPLICATION: Seamlessly seal wood surfaces! Prior to applying Rainguard Wood Sealer, protect anything you don’t want to be sealed by moving or covering with a tarp. Prep surface by gently removing any stains with a mild soap or Restore-N-Prep (sold separately) for best results. Using the hand-pump sprayer nozzle, apply at least two heavy coats of sealer to the surface, allowing it to dry to the touch between coats. Clean up any overspray with a clean damp cloth.
• RAIN GUARD: Where innovation meets sustainability! Since 1969, Rainguard Water Sealers has been manufacturing architectural and industrial coatings designed to “wrap” the exterior of buildings and structures. Rainguard now brings this same technology to consumers in our ready-to-use and concentrated DIY formulations, providing a variety of high-performance sealers for your home. Eco-friendly and non-toxic, all our waterproofing solutions are safe to use around people, pets, and plants.

5. HOPE’S 100% Pure Tung Oil, Waterproof Natural Wood Finish and Sealer, 16 Fl Oz

• Easy to Use – Tung oil is a natural oil recognized by craftsmen to offer the ultimate hand-rubbed finish for all fine woods; just wipe on and allow the oil to cure at room temperature
• Permeates – Unlike other finishes that form a film on the wood’s surface, tung oil penetrates deep into the wood fibers, cures to a flexible non-oily solid, and becomes part of the wood itself
• Protects – Resistant to moisture, alcohol, oil, and everyday wear for lasting beauty and protection; lasts many times longer than mineral oil and wax based products
• Multi Use – Amazing results on almost any surface that will allow the oil to penetrate – new unfinished wood, weathered wood, stripped wood, concrete floors and countertops, even brick, stone, and cast iron
• Great for Food Contact Surfaces – Since tung oil is considered non-toxic when dry, it is great for cutting boards, butcher blocks, countertops, wooden bowls, wooden utensils, and more
• 100% Pure Tung Oil- Hope’s Tung Oil is the “best of the best” pure Tung oil grades. We only use premium oil, pressed from the best Tung nut crops from growers around the world.
• Why Hope’s? #1 Best Selling Brand, Recognized Experts, 50 year USA based company that stands by it’s product

6. Thompsons Waterseal 21801 Gl Wood Protect Voc

7. Rust-Oleum Clear 902 Wolman Classic Wood Preservative-Above Ground, Quart, 32 Fl Oz

• It is easy to use
• It is highly durable
• Manufactured in United States
• Model number: 902

8. 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.
• Subject to or will include a PaintCare recycling fee in the following states: CT, or VT. Not available in CA.
• Easy maintenance – no sanding or stripping required for re-application
• “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

9. Thompsons Water Seal 24101 Clear Multi-Surface Waterproofer, 1-Gallon

• California formulation
• Waterproofer product
• Use on decks, fences, brick patios, concrete driveways and exterior surfaces
• Prevents water damage
• Allows wood to gray naturally

10. THOMPSONS WATERSEAL 21802 VOC Wood Protector, 1.2-Gallon, Clear

• 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