AEFASTICK is a 40 mm thick thermo-acoustic insulating panel made up with polyester fibres coming from the recycling of PET bottles, it is very well used in double walls with cavity. Depending on the requested acoustic performance it can vary between the three available densities 4040 (40 kg/m3 density), 4030 (30 kg/m3 density), and 4020 (20 kg/m3 density). Due to its composition, in addition to the acoustic capacities it has very high thermal insulation qualities. AEFASTICK has great dimensional stability qualities, rot-proof, untouchable by fungi, breathable, resistant to atmospheric agents and certified Class 1 to fire reaction.