12 mm thick anti-vibration panels, made of fibres and granules of SBR rubber (Stirene Butadiene Rubber) and/or EPDM (Ethylene Propylene Diene Monomer), selected and compacted using a polyurethane glue in a hot process; density 900 kg/m³. A non-woven, nonstretch synthetic membrane is applied on both sides of panel, for added protection.