Polyether ether ketone (PEEK) is a colorless organic thermoplastic polymer, and it is used in a variety of industries. Three key characteristics of PEEK materials are their strength, wear resistance and biocompatibility. They are softer than most metals but stiffer than most plastics. Some of PEEK’s other unique characteristics are:
PEEK is excellent for applications that require strength and stability under the consistent use of high temperatures (500°F/260°C). You often find PEEK plastic in piston parts, pumps, electrical cable insulation and bearings. There is a rise in the use of PEEK for medical implant device components such as dental healing cups, spiked washers and spinal implants. It is also gaining popularity in the aerospace, automotive and chemical process industries.
PEEK material is available in two basic grades: industrial-grade PEEK and medical-grade PEEK.
Industrial-grade PEEK keeps its mechanical properties at high temperatures. It is a flame-retardant material with abrasion resistance, high impact strength and a low coefficient of friction. The industrial-grade version is often used in the aerospace, automotive, chemical, electronics, petroleum, and food and beverage industries.
Medical-grade PEEK has the same properties as industrial-grade PEEK. On top of all those, it possesses biocompatibility and high chemical resistance. It also has compatibility with different sterilization methods and is naturally radio translucent.
These are some basic tips you should be aware of when machining PEEK polymer.