One of the original materials used in FDM printing that still about but losing popularity. Carbon fibre reinforced versions are decent when you need strength but [[Polyamide]] really does out class it both mechanically and in terms of chemical resistance. Its poor solvent resistance and bad smell mean its seldom used in my work. If you're interested in the work I've done on these materials specifically for chemical and research applications, check out [[My Works On Printed Polymers]]