PPSU is the acronym for Polyphenylsulfone. It is an a better alternative than PES (polyethersulfone) we have chosen because, not only is completely BPA, and BPS (bisphénol-S) free, but it has a much better mechanical resistance. Your PPSU will last, last, last, … !

Here is a quick excerpt of what you can find about PPSU on the internet :

For the most challenging applications – requiring repeated sterilization or uncompromising toughness – choose Radel R polyphenylsulfone (PPSU). With a high heat deflection temperature of 405°F (207°C), it can withstand continuous exposure to heat and still absorb tremendous impact without cracking or breaking (video). It is inherently flame retardant and offers exceptional resistance to bases and other chemicals.