Nylon shower brush hair commonly used nylon 612 as a shower brush in the high-end products, because nylon 612 is all nylon material in the response force, wear resistance is the best, with excellent elasticity memory, and chemical properties are also the most stable , but the temperature resistance is the worst in nylon, of course, if it is used as a shower brush hair, the temperature resistance of the point that you do not have to care about, because you can not take 180 ℃ above boiling water bath .