An organic material, polyurethane (PU) sealants have strong bonding properties and are highly resistant to physical tears and abrasions. They generally feature rapid green strength, good elasticity, high mechanical strength, and can be modified for durability against UV light in outdoor applications. Ellsworth Adhesives supplies polyurethane adhesives from top suppliers such as Sika, 3M, Bostik, Parker LORD, and Henkel Loctite.