Glass wool felt is manufactured using glass as its primary raw material. After undergoing high-temperature melting, the molten glass is transformed into fibers through a centrifugal spinning process. Subsequently, an eco-friendly binder-primarily composed of thermosetting resins-is added, followed by a thermal curing treatment to form the final felt-like product. The fibers possess a diameter of only a few microns, and, depending on specific application requirements, facing layers-such as moisture-proof laminates-can be applied in-line during production.
Glass wool felt consists of glass fibers with diameters measuring merely a few microns; the average fiber diameter is 5.5 μm, meeting the standard requirement of ≤ 8.0 μm. It exhibits a wide range of bulk densities (densities), typically falling between 10 and 100 kg/m³, and boasts a high hydrophobicity rate, reaching ≥ 98%. Glass wool felt features a low thermal conductivity of 0.033 W/m·K, thereby providing excellent thermal insulation performance. As a porous material, it demonstrates superior sound absorption capabilities, proving particularly effective in absorbing low-to-medium frequency noise as well as various types of vibration-induced noise. Glass wool felt is classified as a non-combustible material, holding a fire performance rating of Class A1, with a maximum service temperature reaching up to 410°C. Furthermore, the material possesses characteristics such as antibacterial and anti-mold properties, resistance to aging and corrosion, low moisture absorption, and stable physical properties.