Furfuryl alcohol is widely used in the production of foundry resins, particularly in shell molding and core-making processes. It acts as a key binder in furan resins, which are thermosetting polymers that provide excellent heat resistance and dimensional stability to sand cores and molds used in metal casting. It is also employed in the synthesis of corrosion-resistant fiberglass-reinforced composites for chemical storage tanks, piping, and industrial linings. These materials are highly resistant to acids, solvents, and other aggressive chemicals, making them ideal for use in chemical processing environments. In addition, furfuryl alcohol serves as a building block for various specialty chemicals, including plasticizers, adhesives, and surface coatings. Its ability to form cross-linked networks enhances the durability and thermal stability of coatings applied on wood, concrete, and metals. Another important application is in the modification of wood, where it penetrates the cell structure and polymerizes to create a more durable, water-resistant, and dimensionally stable material known as "polymerized furfuryl alcohol wood" or compressed wood. This treated wood is used in high-performance flooring and outdoor applications due to its improved hardness and decay resistance.