Stains & Finishes
Polyurethane
Varathane
$15-$38/qt

Exterior Polyurethane for UV and Weather-Resistant Wood Finish

Exterior polyurethane withstands outdoor elements including UV rays rain temperature swings and humidity. The clear protective finish provides a hard flexible coating that expands and contracts with wood preventing cracking and peeling with enhanced UV absorbers for extended clarity.

Key Features

  • UV absorber technology
  • Flexible weather-resistant film
  • Waterproof protection
  • Fade resistant formula
  • Expands and contracts with wood
  • Available in multiple sheens

Specifications

Coverage: 100-125 sq ft/qt | Dry: 4-6 hrs | Recoat: 6-8 hrs | VOC: 275-350 g/L | Coats: 3-4 | Apply: brush or spray

Best For

Exterior doors outdoor furniture window trim pergolas and any outdoor wood surface exposed to sun and weather.

Compatible Materials

Hardwood
Softwood
Cedar
Mahogany
Teak
Stained exterior wood

Pros & Cons

Pros

  • ✓ UV protection prevents fading
  • ✓ Flexible finish won't crack
  • ✓ Waterproof barrier
  • ✓ Crystal clear appearance
  • ✓ Excellent outdoor durability

Cons

  • ✗ Requires multiple coats
  • ✗ Longer dry time than interior
  • ✗ Annual recoat in harsh sun
  • ✗ Can yellow with age
  • ✗ Higher VOC than water-based

Installation Tips

Apply to clean dry sanded wood. Natural bristle brush for oil-based formulas. Thin even coats and avoid drips. Sand 220-grit between coats. Apply 3-4 coats for maximum protection. Avoid application in direct sunlight or below 50F.

Frequently Asked Questions