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What Is PolyesterPolyester is a synthetic polymer made of purified terephthalic acid(PTA) or dimethyl ester dimethyl terephthalate(DMT) and ethylene glycol. It doesn’t have high resistance to heat, so it is usually used at the very end of the progress, where the profile is cooler. You may know Polye

PBO felt belts are widely used in the aluminum extrusion industry. For aluminum extrusion, PBO usually can withstand temperatures up to 1200℉/600℃.What Is PBO PBO stands for Polybenzobisoxazole, a synthetic polymer invented by SRI International and is currently manufactured by Toyobo Corporation in

What Is Nomex Nomex is a trademark for a flame-resistant meta-aramid developed by Dupont. Nomex has good thermal, chemical, and radiation resistance for a polymer material. For example, the firefighters’ suits are made of Nomex because of their resistance to fire and chemicals. But this also causes