Top 10 Best Polyurethane For Outdoor Wood [2024]

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Comparison Chart of Top 10 polyurethane for outdoor wood

NoProductScoreAction
1Minwax 630500444 63050 Water Based Helmsman Spar Urethane9.4Buy On Amazon
2RUST-OLEUM 250181 11.25 oz Outdoor Clear Semi Gloss Finish9.4Buy On Amazon
3ZAR 34012 Gloss Ultra Fast Drying Exterior Polyurethane9Buy On Amazon
4TotalBoat Gleam Marine Spar Varnish8.8Buy On Amazon
5Deft Defthane Interior Exterior Clear Polyurethane Satin Spray8.6Buy On Amazon
6TotalBoat-520605 Halcyon Marine Varnish - Water-Based Polyurethane Wood Finish - Clear Satin UV Protection for Interior and Outdoor Use (Clear Satin, Quart)8.4Buy On Amazon
7SEAL-ONCE Nano+Poly Penetrating Wood Sealer with Polyurethane - 1 Gallon. Water-Based8.4Buy On Amazon
8Guardsman 461900 Weather Defense Outdoor Wood Furniture Protector-10 Repels Moisture and Stains-4619008.2Buy On Amazon
9ZAR ZAR-34112 34112 Ultra Fast Drying Exterior Polyurethane8.2Buy On Amazon
10Varathane 225250H One-Step Wood Stain & Polyurethane8.2Buy On Amazon
Disclaimer: As An Amazon Associate I Earn From Qualifying Purchases.

1. Minwax 630500444 63050 Water Based Helmsman Spar Urethane

  • 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 temperatures change.
  • Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture.
  • Crystal clear finish is ideal for use over light-colored woods and stains.
  • 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.
  • 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. RUST-OLEUM 250181 11.25 oz Outdoor Clear Semi Gloss Finish

  • Protects outdoor wood surfaces such as furniture, fences, boats, trim and more
  • Water based formula dries fast and cleans up with soap and water
  • Dries to the touch in 30 minutes with coverage up to 12 sq. ft. per can, recoat after 1 hour
  • Weather and UV resistant formula is non yellowing and protects the surface from sun damage
  • Semi gloss finish creates a smooth and classy look
  • Non-yellowing formula keeps your wood looking great longer
  • Outstanding UV and weather resistance
  • Low odor
  • No brush strokes
  • Extra fast drying apply 3 coats in a day

3. ZAR 34012 Gloss Ultra Fast Drying Exterior Polyurethane

  • Provides superior protection on exterior wood surfaces
  • Outperforms other exterior clear finishes by 2-1

4. TotalBoat Gleam Marine Spar Varnish

  • CLASSIC MARINE VARNISH contains premium tung oil, phenolic resins for a beautiful, warm, transparent amber finish on all types of interior and exterior wood.
  • DURABLE SPAR VARNISH is the ideal outdoor wood sealer and waterproof finish on brightwork on boats, strip canoes, kayaks and outdoor wooden bar tops, garage doors, furniture and more.
  • EASY TO USE, SELF-LEVELING, DRIES FAST: Recoat in 1 hr.
  • CHOOSE GLOSS OR SATIN FINISH: For a high gloss varnish finish apply 4-6 coats of Gleam Gloss; for a sleek satin finish, build with coats of Gleam gloss varnish and use Gleam Satin for the final coats.
  • AVAILABLE IN GLOSS OR SATIN (low-sheen), in Pint, Quart and Gallon sizes.

5. Deft Defthane Interior Exterior Clear Polyurethane Satin Spray

  • This product adds a great value
  • Excellent for interior and exterior wood surfaces including floors, doors, furniture cabinets and marine applications above the water line.
  • A high-solids oil-based polyurethane formulated for hard use areas
  • This high solids oil based polyurethane formulated for hard use areas
  • Excellent for interior and exterior wood surfaces including floors, doors, furniture cabinets and marine applications above the water line.
  • Offers 450 VOC compliant formula
  • Use on unfinished and stained wood, painted, varnished or lacquered surfaces
  • Available in satin finish and 13-ounce aerosol spray with an adjustable spray valve

6. TotalBoat-520605 Halcyon Marine Varnish - Water-Based Polyurethane Wood Finish - Clear Satin UV Protection for Interior and Outdoor Use (Clear Satin, Quart)

  • DURABLE MARINE-GRADE VARNISH cures to a hard gloss or satin finish for beautiful brightwork; for interior and exterior use on wood trim, toerails, cockpits, doors, cabinets, chairs, outdoor furniture and more – on your boat or at home.
  • PROTECTS AGAINST DAMAGE FROM SUN AND WEATHER: Provides superior sun-blocking protection and maximum resistance to salt, abrasion and scratches; excellent adhesion and flexibility let wood expand & contract naturally, without cracking or peeling.
  • EASY TO APPLY, EASY TO CLEAN UP: Spar urethane is easy to apply by brushing, rolling or spraying; looks milky-white at first, but cures to a clear or clear amber color, depending on formula; for a satin finish, use gloss for build coats and satin for finish coat; easy soap & water cleanup.
  • FINISH VARNISH JOBS FASTER: Dries fast so you can finish faster than with traditional varnishes; apply up to 5 coats in a day, no sanding between coats; apply at least 2-4 heavy coats for interior applications; 4-6 coats for exterior applications.
  • CHOOSE FINISH AND COLOR: Gloss finish comes in Clear or Amber colors; Satin finish comes in Clear only; Kit Sizes: Pint, Quart and 4 Quart; Coverage: 40-50 sq ft/pint; 80-100 sq ft/quart; NOTE: Halcyon Satin is not available in a 4 Quart kit.

7. SEAL-ONCE Nano+Poly Penetrating Wood Sealer with Polyurethane – 1 Gallon. Water-Based

  • eliminate line
  • When used as a wood stain creates a UV barrier to prevent fading.

8. Guardsman 461900 Weather Defense Outdoor Wood Furniture Protector-10 Repels Moisture and Stains-461900

  • Repels moisture as it enhances wood’s natural beauty.
  • Repels common outdoor stains, making cleanup easier.
  • Forms and invisible barrier against mold, mildew and fungi, keeping your outdoor furniture looking its best and providing you with an inviting outdoor living space.
  • Great for all types of wood – including teak and cedar.
  • Guardsman Outdoor Wood Protector forms a micro-thin film to prevent mildew and fungi spores form attaching to the treated surfaces.

9. ZAR ZAR-34112 34112 Ultra Fast Drying Exterior Polyurethane

  • Provides superior protection on exterior wood surfaces
  • Outperforms other exterior clear finishes by 2-1

10. Varathane 225250H One-Step Wood Stain & Polyurethane

  • Ideal for use on all interior projects including intricate moldings, wood furniture, trim, cabinets, doors and paneling.
  • Oil-based formula designed to provide deep, rich color with renowned Varathane polyurethane finish in one easy application.
  • Thorough dry in 3 hours and covers 100 sq ft
  • Offers stain and polyurethane technology together to provide a durable, protective coating
  • Creates a smooth, semi-gloss finish that is long lasting
  • Perfect for interior wood finishing projects like furniture, trim, cabinets, doors and paneling
  • Even color, no brush marks
  • Premium protection
  • Water-based formula offers fast application
  • Soap and water clean-up