Every aspect of the patented Megaware KeelGuard has been designed with boat designers and 3M engineers. Many factors contribute to its success. A precise, abrasive-resistant blend of polymers and urethanes achieve optimal durability and pliability. A pressure-sensitive adhesive creates strength, while permanently bonding and sealing Megaware KeelGuard?s contoured edges to the hull surface. Angled grooves produce hydrodynamic channels, creating air pockets and providing a slicker surface. The perfect combination of these factors makes the Megaware KeelGuard the easiest keel protector to install, and gives it unparalleled quality and dependability.