Top 10 Outdoor Wood Sealers (April 2024)

THOMPSONS WATERSEAL TH.041851-16 Transparent Waterproofing Stain – ⭐ Best Overall Outdoor Wood Sealer

TH.041851-16 by Thompson's Water Seal

21802 by Thompson's Water Seal

TH.010100-18 by Thompsons

Will effectively seal any porous material against damage by water, including concrete, brick, stone, plaster, wood, and asbestos
When used as an additive to, or under-seal for solvent thinned paints, it shields paint against weather.
Is unsurpassed as a penetrating sealer for concrete hardening and dust-proofing, and meets ASTM C309 specifications for concrete curing
Clear waterproofer
10100: 12 oz aerosol

SWAX16 by Howard Products

Color: Yellow
Weight: 1 pounds
Dimensions: 2 x 3.3 x 8.6 inches
Warranty: Products sold by designed for outdoors are guaranteed to be free of defects in workmanship and materials for up to one year after the purchase date. Prolonged exposure to weather conditions including snow, rain and humidity are not covered under the warr

Prevents further drying and fading of wood finishes due to sun exposure, temperature variations, and moisture both indoors and outdoors
Enhances the natural beauty and depth of grain as it protects your wood furniture
Unique formula combines UV inhibitors with a blend of carnauba wax, beeswax, and orange oil
Conditions and protects any wood surface, especially teak and other tropical hardwoods
Replenishes finished or unfinished dry wood surfaces on chairs, tables, benches, chests, desks, lounge chairs, etc.

SP-8002 by Rain Guard Water Sealers

Prevents surface damage from rain, snow, ice with a satisfaction guarantee for up to five years
Does not alter surface appearance, does not leave a surface film and helps prevent efflorescence
Contains advanced UV stabilizers to ensure long lasting non-yellowing performance
Concentrate formula - easily mixed, save money and great for the environment
Apply a flood coat with a sprayer, brush or roller, no maintenance required and safe for People, Pets and Plants

7614 by SEAL-ONCE

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

7214 by SEAL-ONCE

Water-based sealer with advanced penetrating nanotechnology. This premium wood sealer performs like an Oil-based product, without any noxious solvents or toxic chemicals.
Great investment to enhance and extend the natural life of wood. Protects against water damage for up to 10 years on vertical surfaces & 6 years on horizontal.
Ultra Low-VOC wood sealer safe for people, pets, plants or marine life. Easy to apply with soap & water clean-up. Save time with wet on damp application.
Prevents warping, cupping, wood rot, mold, mildew, staining, decay & will not peel.
When used as a wood stain creates a UV barrier to prevent fading. Rich color palette available in 11 different color tints. Clear formula allows wood to turn gray naturally.

EAWOOD16CON by Eco Advance

Liquid concentrate formula makes 1 gallon of commercial grade water proofer
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

088032 by Star Brite

Easy to apply one coat formula is virtually mess free - won't splatter, drip or run
Advanced polymers seal out water, salt & sun to stop wood from turning black
Developed specifically for harsh tropical marine environments, provides superior performance in northern climates
UV inhibitors outlast traditional teak oil sealers preventing weathering and fade
Star brite products are proudly made in the United States since 1973