Markforged Onyx Filament

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Markforged Onyx Filament

Product code: MKFORGF-ONYX

Part Number:  F-MF-0001



£180.00 incl. VAT.


In stock



Markforged Onyx filament is a high quality 3D printing material for use with the Markforged range of 3D printers.


Onyx is nylon embedded with micro carbon-fibres producing prints with good stiffness and a high temperature resistance, up to 145°C, making it ideal for use in parts subjected to higher loads, stresses or temperatures.


Onyx can be used stand-alone or in conjunction with adding reinforced fibres in Kevlar, Fibreglass, High Temperature Fibreglass or Carbon Fibre. With a matt black appearance, Onyx can also be used to produce end-use component parts or parts that can be provided directly to the client without additional finishing.


Each MarkForged Onyx filament spool contains approx. 800cm3 of material.


Compatible only with the Markforged Mark Two, Markforged X3, Markforged X5, Markforged X7 (formerly known as Mark X), Onyx One and Onyx Pro models.


Due to the large variation of monitors, video cards, operating systems & Internet browsers and the effects each has on each other, the colours on this page may not exactly match the materials.

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Markforged Onyx Technical Specifications



Markforged Onyx                           

Tensile Strength (MPa)


Test Standard ASTM D638

Tensile Modulus (GPa)


Test Standard ASTM D638

Tensile Strain at Break (%)


Test Standard ASTM D638

Flexural Strength (MPa)


Test Standard ASTM D790

Flexural Modulus (GPa)


Test Standard ASTM D790

Flexural Strain at Break (%)


Not available because Onyx does not break before the test ends.

Heat Deflection Temperature (°C)


ASTM D648 Method B


NB Properties and settings may vary depending on printer type and settings.


Markforged material properties data sheet.PDF


Other Colours Available
Markforged Carbon Fibre CFF Spool

Markforged Carbon Fibre CFF Spool

£115.00 excl. VAT
Markforged Fibreglass CFF Spool

Markforged Fibreglass CFF Spool

£59.00 excl. VAT
Markforged HSHT Fibreglass CFF Spool

Markforged HSHT Fibreglass CFF Spool

£79.00 excl. VAT
Markforged Kevlar CFF Spool

Markforged Kevlar CFF Spool

£79.00 excl. VAT