Best Exterior Polyurethanes

Rust-Oleum Painter's Touch 2X Ultra Cover Flat Matte in Clear, 340g

Liquid Rubber Textured Polyurethane Deck Coating - Solar Protection Deck Sealant, Non-Toxic Multi-Surface Waterproofing Membrane, Stone Grey, 4 Gallon, 15.1 Liter

Rust-Oleum Painter's Touch Spray Paint in Clear Gloss, 312g

SIKA - Low Expansion Polyurethane Foam - Sika Boom AS - Light Yellow - Multi-Purpose - Door and Window Installation - All-Season - Reusable Straw - 354 mL

Varathane Water based Diamond Wood Finish Outdoor in Satin Clear, 3.78L

Sikaflex-221, Black, Multi-Purpose Industrial Grade Polyurethane Sealant & Adhesive, Weather Resistant Sealant. Ideal for Caravans & Motorhomes 300 mL (10.1 US fl. oz)

Nayotaa 26Feet Weather Stripping Door Seal Strip, "Q" Foam Exterior door weather stripping for Door Frame, V-Shaped door sealing strips for Doors and Windows with Slot Card Slot Installation Seals

SamaN Interior Water Based Varnish with Aluminum Oxide – Crystal Clear Wood Finish (Satin Finish (946 ml))

TotalBoat Gleam Marine Spar Varnish, Gloss and Satin Polyurethane Finish for Wood, Boats and Outdoor Furniture (Satin Low-Sheen Pint)

TotalBoat Halcyon Marine Varnish - Water Based Polyurethane Wood Finish for Interior and Exterior Use (Clear Amber Gloss, Pint)