Polyester felt is a general purpose synthetic needle punched felt made in various densities thicknesses, often made in comparable density and thickness to SAE pressed wool felt.Needle punched felt refers to felt that is made by vertically needling fibers together to achievea desired thickness and density. Needled felt is commonly made from polyester fibers. Whenviewing a cross-section of needled punched felt, the fibers lay vertically, as opposed topressed felt, where the fibers lay horizontally.Polyester felt is a synthetic needle punched felt made from polyester fibers. Material is normally supplied either black or white. This special purpose felt is made in various densitieswith thicknesses ranging from 2mm to 20mm. Polyester felt is fairly inexpensive, and often made in comparable density and thickness to SAE pressed wool felt. The maximum temperature of polyester felt is 300 degree F, compared to 200 degrees for SAE pressed wool felts.
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