Thermal and Acoustic Insulated Fibreglass Wool is available in thickness of 25 mm, 40 mm and 50 mm. The Fibreglass Wool is made from virgin stable glass fibres and is bonded with thermo setting resins. The Fibreglass Wool is used in air-conditioning ducting, predominantly for thermal insulation. Thermal and Acoustic Insulated Fibreglass Wool is ideal for residential and industrial applications.