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Zetamix Epsilon 4.5 Dielectric Filament 1,75mm

Engineering, FFF (FDM) 3D Printing Materials, Filament, Filaments 3D Printing Materials, Manufacturing, Materials · FFF

Zetamix Epsilon 4.5 Dielectric Filament 1,75mm

Print radiofrequency parts directly — no debinding, no sintering. A dielectric filament with permittivity 4.5 and low loss, so antennas, lenses and metasurfaces come off the printer ready to test.

✔ Permittivity 4.5 · loss tangent 0.001 · HDT up to 110 °C
✔ No debinding, no sintering — prints as a technical polymer, parts up to 80 cm
✔ Genuine Zetamix by Nanoe · 500 g spool, vacuum packed · 1.75 mm

Prices follow supplier cost and stock availability and are updated regularly. The price you see is today's price — once you order, it's held for 7 days.

What RF engineers should check first

Dielectric performance, no furnace

Zetamix Epsilon 4.5 holds a permittivity of 4.5 with a loss tangent of 0.001 and a heat deflection temperature up to 110 °C. It prints and finishes as a technical polymer — no debinding, no sintering, no shrinkage — so parts up to 80 cm come off the plate ready to measure.

Where Additive Plus helps

Tell us your target permittivity and frequency and we confirm the right Epsilon grade against your design. We share starting print parameters for your FFF machine and an engineer stays on the line through your first RF prints, so you tune on real data rather than guesswork.

About this product

Zetamix Epsilon 4.5 is a dielectric filament for radiofrequency parts. It prints on a standard FFF printer and the part is finished when it leaves the build plate — no debinding, no sintering, no shrinkage and no furnace cycle between design and test. Permittivity is set by the grade you choose, from 2.2 up to 10.

3D printed RF dielectric antenna reflector made with Zetamix Epsilon filament in an anechoic chamber — An RF dielectric reflector 3D printed with Zetamix Epsilon, tested in an anechoic chamber.

Why RF engineers choose Epsilon 4.5

A dielectric filament that prints and finishes as a technical polymer — controlled permittivity, low loss, no furnace.

Dielectric performance

Permittivity of 4.5 in the middle of the Epsilon range, loss tangent 0.001 and heat deflection temperature up to 110 °C.

No sintering, no shrinkage

Prints and finishes as a technical polymer — no debinding, no sintering and no shrinkage compensation.

Parts up to 80 cm

Because there is no furnace, part size is limited by your printer — a range sinterable ceramics cannot reach.

Tunable range 2.2–10

Pick the permittivity your design calls for across four grades; every grade shares the 0.001 loss tangent.

Epsilon 4.5 material properties

Permittivity: 4.5
Loss tangent: 0.001
Heat deflection temperature: up to 110 °C
Printing temperature: 270–300 °C
Recommended chamber: 120 °C controlled heated chamber
Material: polymer matrix with ceramic filler
Post-processing: none — no debinding, no sintering
Filament: 1.75 mm · 500 g spool, vacuum packed

Full specifications are listed in the Specifications tab. A controlled heated chamber at 120 °C is recommended for dimensional stability on large RF geometries.

From spool to tested RF part

Three steps — no furnace stands between the printer and measurement.

Step 01

Pick the permittivity

The Epsilon range runs 2.2, 4.5, 7.5 and 10. Choose the grade your antenna, lens or metasurface design calls for.

Step 02

Print at 270–300 °C

Print on a standard FFF machine. A heated chamber at 120 °C is recommended for dimensional stability on large parts.

Step 03

Test the part

No debinding, no sintering, no shrinkage — the part is finished on the build plate and ready to measure.

Where Epsilon is used

Radiofrequency components that need a controlled, low-loss dielectric constant.

Antennas & substrates

Printed dielectric bodies

Metasurfaces

Frequency-selective structures

Dielectric lenses

Graded-permittivity optics

RF components

Resonators and waveguide parts

Reflectors

Tested in anechoic conditions

Choose your Epsilon permittivity

Every Epsilon grade prints and finishes as a technical polymer — same 0.001 loss tangent, same 110 °C heat deflection temperature, same 270–300 °C print window. The highlighted row is the grade on this page:

Grade	Permittivity	Loss tangent	HDT
Epsilon 2.2	2.2	0.001	up to 110 °C
Epsilon 4.5	4.5	0.001	up to 110 °C
Epsilon 7.5	7.5	0.001	up to 110 °C
Epsilon 10	10	0.001	up to 110 °C

Before you order

Epsilon is a polymer-ceramic composite, not a sintered technical ceramic. It needs a printer with a controlled heated chamber at 120 °C for dimensional stability on large RF geometries. For service temperatures above 110 °C, use a sintered ceramic filament instead — Alumina, White Zirconia or Silicon Carbide.

Tell us your target permittivity and frequency and a materials engineer who prints these every day will confirm the right Epsilon grade and the print parameters for your machine. Sub-4h reply, NDA standard.

Material	Polymer matrix with ceramic filler
Permittivity	4.5
Loss tangent	0.001
Heat deflection temperature	Up to 110 °C
Printing temperature	270–300 °C
Filament diameter	1.75 mm
Spool	500 g, vacuum packed
Post-processing	None — no debinding, no sintering
Brand	Zetamix by Nanoe
Printing Materials	Dielectric Filaments
Technology	FFF
Application	Engineering, Manufacturing

Common questions

Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.

Does Zetamix Epsilon 4.5 need debinding and sintering?

No. Zetamix Epsilon 4.5 prints and is finished the moment it leaves the build plate. It is a polymer matrix with a ceramic filler, so it behaves like a technical thermoplastic on a standard FFF printer — there is no debinding step, no sintering step and no shrinkage to compensate. That is the core difference from the ceramic Zetamix filaments such as alumina or zirconia. You print the dielectric part, then measure it, with no furnace cycle standing between design and test.

How large a part can I print with Epsilon 4.5?

Up to 80 cm, limited by your printer rather than by the material. Because Zetamix Epsilon 4.5 skips debinding and sintering, there is no shrinkage and no furnace to cap the geometry, so you reach a size range that sinterable ceramics cannot. For dimensional stability on large RF geometries, run a printer with a controlled heated chamber at 120 °C. On an open-frame machine without a chamber, we cannot promise stability on the biggest parts.

Why not print RF parts in ordinary PLA or ABS?

Standard thermoplastics sit near a permittivity of 2.5 to 3 with higher dielectric losses, which limits how they perform in antennas and RF structures. Zetamix Epsilon 4.5 is formulated with a ceramic filler that raises permittivity to 4.5 while keeping the loss tangent at 0.001. That combination lets you tune substrate thickness and dielectric behaviour deliberately rather than accepting whatever a general-purpose plastic happens to offer, and the part still prints on a standard FFF machine.

I need a different permittivity than 4.5.

The Zetamix Epsilon range covers permittivity 2.2, 4.5, 7.5 and 10, so you match the grade to your design instead of reworking the geometry. Epsilon 4.5 sits in the middle of the range; if your target is higher or lower, the other grades share the same 0.001 loss tangent, 110 °C heat deflection temperature and 270–300 °C print window. Tell us your target permittivity and frequency and we confirm the grade and price.

Place your order, or talk to an engineer first

Order Zetamix Epsilon 4.5 Dielectric Filament 1,75mm direct, or talk to materials engineer

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