FibreX™ PEEK+GF20 (PolyEtherEtherKetone) is one of the highest-performance polymers in world. In fact, it’s one of the highest-performance plastics ever invented. Now reinforced 20% with glass fibers, PEEK+GF20 has exceptional mechanical, thermal, and chemical resistance properties along with its low warp, increased stiffness, and improved dimensional stability. PEEK+G20 is a go-to material in some of the most demanding applications where failure is not an option.
PEEK has an excellent resistance to hydrolysis in boiling water and superheated steam (sterilization/autoclave) at temperatures in excess of 250°C (482°F).
General thermal properties of PEEK+GF20 are:
Fibers made of glass reinforced into the polymer during manufacturing and aligned along the axis of filament.
This, along with their physical makeup, give this material enormous strength and mechanical properties.
Glass fiber reinforcement gives material a lot of desirable properties:
Reinforcing plastic with glass fibers produces a 3D printing filament which exhibits the best properties of both fiberglass and the plastic of choice.
What Is It Good For?
Ideal for any applications which require strength and rigidity.
For these reasons, glass fiber reinforced filament is very popular in automotive, mechanical, civil engineering, and research industries.
This material is particularly abrasive among 3D printing filaments. Users may find standard brass nozzles are chewed through very quickly compared to standard wear and tear. When worn through, the nozzle diameter will widen inconsistently and the printer will experience extrusion issues. it's strongly recommended this material be printed through a hardened steel nozzle rather than a softer metal. Hardened Steel Nozzles
Printing with CarbonX™ PEEK+CF10
PEEK has a melt temperature (Tm) of 343°C, therefore, you will need an all-metal extruder capable of reaching (and holding) temps upwards of 400°C or more depending on your specific printer. Every printer / slicer is different and you will need to tinker a bit to find a process that works for you. One of the more difficult aspects of printing with PEEK was getting it to stick to the build plate. We developed Nano Polymer Adhesive specifically for PEEK, in the beginning!
Here are our recommendations - which should act as a good starting point for you and your particular set-up.