Over the last months we have been working hard on new high temperature filaments.
Working Alongside NeraTek we now are able to print prepare and distribute PEEK, PPSU and PEI parts.
Which is Polyether Ether Ketone (PEEK) PEEK polymers are obtained by step-growth polymerization. PEEK is a semicrystalline thermoplastic with excellent mechanical and chemical resistance properties that are retained to high temperatures. PEEK is regarded as one of the highest performing engineering thermoplastics in the world. PEEK is used to fabricate items used in demanding applications in aerospace, automotive, oil and gas and medical industries.
As it requires hot end Temps over 400 degC and bed temps of over 150 degC along with ambient temps close to 100 degC it is extremely difficult to work with. At the moment there is not a production machine capable of reliably printing it on or below 80 microns.
But we Can now print this reliably with our own bespoke system.
Which is Polyphenylsulfone (PPSU) is an amorphous high performance thermoplastic offering better impact resistance and chemical resistance than PEI. PPSU can operate in temperatures up to 180Cᵒ. PPSU has superior hydrolysis resistance when compared to other amorphous thermoplastics as measured by steam autoclaving cycles, it has virtually unlimited steam sterilizability. It also resists common acids and bases over a broad temperature range. Applications are; Aerospace, Aircraft, Automotive, Dental, Medical, Surgical instruments. The PPSU filament is based on the technology of Solvay.
As this also requires hot end Temps over 420 degC and bed temps of over 160 degC along with ambient temps close to 100 degC it is extremely difficult to work with. At the moment there is not a production machine capable of reliably printing it on or below 80 microns.
But we Can now also print this reliably with our own bespoke system.
Which is Polyether Imide (PEI) Ultem is an amorphous, amber to transparent thermoplastics with a glass transition temperature (Tg) of 217 °C and performs in continuous use up to 170 °C. This inherently flame retardant plastic has UL94 VO and 5VA ratings. Ultem 1010
the hot end, bed and ambient temps with this although High not as high as PEEK or PPSU.
This we also can print now reliably.
More to follow over the next few weeks