PEEK & High-Temperature 3D Printing: What You Need to Know

What is PEEK?

PEEK (polyether ether ketone) is a high-performance engineering thermoplastic used in aerospace, medical implants, oil & gas and automotive. It is exceptionally strong for a plastic, resists chemicals and wear, and keeps its mechanical properties at continuous temperatures around 250°C.

Because PEEK melts at roughly 343°C, printing it requires a machine with a 400°C+ hotend, a heated build plate, and a heated chamber (typically 90–200°C) to control warping and achieve strong layer bonding.

Machines we recommend: the CreatBot PEEK-300 for full PEEK capability, and the CreatBot PEEK-250 for a compact high-temperature option.

High-temperature materials compared

PEEK — the gold standard for high-temperature, chemical-resistant parts; used in medical and aerospace.

PEI (ULTEM) — flame-retardant and certified for aerospace interiors; also supplied carbon-fibre-filled as CARBONX ULTEM PEI+CF when you need more stiffness.

PPSU — sterilizable and impact-resistant, common in medical devices.

Carbon-fibre-filled PEEK — like CARBONX PEEK+CF20, stiffer and more dimensionally stable for structural parts; and 3DXSTAT ESD-PEEK for electrostatic-discharge-safe applications.

High-temp printers compared

What does it cost?

High-temperature printing is a specialist investment — the printer, chamber and material all cost more than standard FDM. See our price guide for the full picture.

Do you need high-temperature printing?

Malaysia-specific considerations

• Humidity — PEEK absorbs moisture and must be actively dried before and during printing or it will bubble and weaken.
• Power & environment — a heated chamber draws significant power and needs a stable supply in a controlled room.
• Material cost — PEEK is expensive; failed prints are costly, so calibration and operator skill matter.
• Anneal / post-processing — many high-temp parts benefit from annealing to relieve stress and improve crystallinity.

Our honest recommendation

Only invest in high-temperature printing if your parts genuinely need it. When they do, PEEK is worth every ringgit — it is the difference between a prototype and a part you can actually put into service. Start with a proven machine like the CreatBot PEEK-300 and dial in the material with your vendor.

FAQ

What temperature does PEEK need to print?
A hotend of ~400°C+, a heated plate, and a heated chamber (typically 90–200°C) to control warping and layer bonding.

Is PEEK stronger than metal?
Not stronger, but it is strong enough to replace metal in many non-structural applications while being far lighter and chemical-resistant.

Why is PEEK filament so expensive?
It is a high-performance polymer with a demanding production process, and specialty grades (carbon-filled, ESD) cost more.

Can a normal 3D printer print PEEK?
No — a standard printer cannot reach the temperatures or hold the heated chamber PEEK requires. You need a purpose-built high-temperature machine.

Need high-temperature parts?

Tell us your application and operating temperature, and we will recommend the right material and machine — with a sample part. Contact Trinventor Solution today.