White polyester is a needle felt made of 100% synthetic white polyester and has a density of 9 OZ/YD SQUARED (0.94 LBS/LIN YD). It withstands temperatures of up to 450 degrees fahrenheit. Like other industrial felt, white polyester may be used to manufacture products such as dust shields, wipers, grease retainer washers, wicks, vibration absorption, polishing, mechanical purposes, etc. Search for “The Felt Store White Polyester” on Amazon for other densities, thicknesses and lengths!