PET polyester fibre mats, as semi-finished products, are a versatile raw material for customised soundproofing solutions in industry, vehicle manufacturing and interior fit-out. The range includes sheets and rolls in various thicknesses, including variants with aluminium lamination, water-repellent types and mats with a glass fibre core. Certain types are certified to EN 45545 for rail vehicle construction, a quality feature that carries significant weight within the industry.