3M introduces its new 3M™ Reinforced Polyurethane Foam, a lightweight and rot-resistant alternative to plywood for use in structural and semi-structural applications. These polyurethane foam boards with fiberglass reinforcement provide high strength in applications including marine, transportation and general construction, with a weight savings ranging from 30 to 60 percent versus plywood. “Plywood is currently used in many applications where water causes it to degrade over time,” said Nick Harris, global business leader for 3M Engineered Products and Solutions. Available in five densities ranging from 15 pounds to 26 pounds per cubic foot, Reinforced Polyurethane Foam complements 3M’s existing line of lighter density foam boards and rounds out the company’s offerings in the field.