10 Best Sealant For Wood of December 2025

• 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

Thompson's Water Seal

• 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
• Meets federal and state environmental guidelines
• Apply a flood coat with a sprayer, brush or roller, no maintenance required and safe for People, Pets and Plants

Rain Guard

• 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

Thompsons

• 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

Thompson's Water Seal

• Incredibly versatile 100% silicone sealant that dries translucent clear
• Best for sealing gaps or cracks between two surfaces; works on window, door, kitchen, bath, gutters, auto, marine and more
• Indoor/outdoor; 100% waterproof
• Won't yellow, shrink or crack
• Mold and mildew resistant

Gorilla

• ✅ Weatherproofs wood for 10+ years - Shower-proof application - Instantly Waterproofs
• ✅ Reduces mould and algae growth - Reduces warping and cracking
• ✅ Breathable, Colourless Protection - Creates an invisible waterproof barrier that protects the wood.
• ✅ One coat application by brush or roller, no drip formulation. Effective on softwoods and weathered hardwoods.
• ✅ Roxil Wood Protection Cream will cover approximately 130 to 200 sq. ft. per gallon

Roxil

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

Olympic Stain

• High Gloss Sealer: Rain Guard wood sealer dries clear with a gloss finish.
• Safe to Use: The masonry sealer is made using a water-based formula. It has low VOC and low odor.
• Long Lasting: The exterior wood sealer is a non-yellowing solvent-based sealer that resists damage from UV rays and protects against weathering, dirt, salt and freezing temperatures.
• Water Based Sealer: The wood sealer works well on both painted or stained surfaces as well as on unpainted or unstained surfaces.
• Satisfaction Guaranteed: Rain Guard wood sealer protects your investment with a five-year satisfaction.

Rain Guard

• Prevents water damage and salt damage.
• Does not alter surface appearance - leaves no surface film, no sheen and will not yellow.
• Specifically formulated project sealers include these surfaces; Brick, Pavers, Paint, Stucco, Wood, Concrete
• Comes in Ready to Use and cost effective Concentrate formulas.
• 100% satisfaction

Rainguard

• Ready to use commercial grade formula can be applied using a standard garden pump sprayer
• Safe around plants, people and pets
• , 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

Eco Advance