Cork Sheet A4 Pack Self Adhesive, 210 x 297mm x 1.5mm thick. Cork is a completely natural raw material, with unique properties. It is light, impermeable to liquids and gases, elastic and compressible, provides thermal and acoustic insulation, it is a fire retardant and highly abrasion-resistant. Furthermore, it is completely biodegradable, renewable and recyclable. Cork sheets can be easily cut and are perfect for pin boards, model making and even acoustic insulation.