High density PU foam sheets, usually with densities exceeding 100 kg/m³, offer exceptional structural rigidity and load-bearing capacity, making them suitable for industrial and commercial applications that need durability. Constructed with a tight-cell configuration, these sheets show enhanced resistance to abrasion, chemical exposure, and heavy impacts, and are often used in packaging for delicate electronics, automotive interior components, and architectural insulation. Their manufacturing process involves controlled polymerization to minimize voids and ensure uniform density, and additives like flame retardants or UV stabilizers can be incorporated for specialized needs. The sheets are available in various thicknesses (5-100 mm) and can be custom-cut or laminated with fabrics/films to enhance functionality, providing a versatile solution for industries that require high-performance foam materials. Their high density also makes them suitable for applications where sound insulation is a requirement, as they can effectively block out noise.