Formaldehyde-Free Glasswool It is an environment-friendly product.It eliminates harm to the human body because of hazardous substance such as formaldehyde in the places with a dense population where plenty of glass wool is used for heat insulation. Functions The formaldehyde-friendly environment hydrophobic glass wool board with the density of 80 kg/m3 and the functions of sound absorption, sound insulation, noise reduction, vibration reduction, corrosion prevention, heat preservation and heat insulation. During the operation of air-conditioning system, it can effectively reduce medium and high frequency noise, and its good heat-insulating property can form a constant temperature environment in the pipe/duct so as to avoid condensation of duct wall. Specifications: Density 40/ 48/ 80 Kg/m3 Dimensions: Thickness 25/30/50 mm Width 600/1200mm Length 1200/3000mm