PEI Ultem 1010 Filament.

An amorphous polyetherimide with a glass transition of 217 °C and continuous use to 170 °C. Inherently flame retardant, rated UL 94 V-0 from 0.75 mm and 5VA from 3 mm, with the test data to back it. read further

UV resistance
Flame retardant, UL94 V0
High mechanical resistance

PEI Ultem 1010 Filament, Natural, 500 g, 1.75 mm

Configure

Color

Natural

Diameter

1.75mm 2.85mm

Weight

500 gram 750 gram 200 gram 1000 gram 2000 gram

€139.00

€278.00/kg · excl. VAT

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About this material

ULTEM 1010 PEI filament: flame performance you can put a number on.

PEI ULTEM 1010 is an amorphous high-performance thermoplastic, amber to transparent, with a glass transition temperature of 217 °C and continuous use up to 170 °C. It sits at the ultra-performance end of our catalogue.

What makes it specifiable is that its fire behaviour is documented rather than described. It is inherently flame retardant, rated UL 94 V-0 from 0.75 mm and 5VA from 3 mm, with an oxygen index of 47% and a glow wire flammability index of 960 °C. Its UL 746 relative thermal index is 170 °C for electrical, impact and strength. It also complies with the aerospace standard FAR 25.853 and burns with low smoke and toxicity.

Heat deflection sits at 192 °C under 1.8 MPa and 209 °C under 0.45 MPa, so it keeps its shape well past the point where engineering plastics usually give up. It can offer very good chemical resistance for an amorphous material, along with hydrolytic stability, low corrosivity, resistance to UV-C and transparency to infrared. It is unreinforced, which suits thin walls and dielectric parts. Its raw material is RoHS compliant, and in its natural, uncoloured form it is halogen free to IEC 61249-2-21, IPC 4101E and JEDEC JS709B; for coloured grades that has to be checked case by case.

The filament never touches water during production and is packed straight into vacuum packaging, which for a hygroscopic polymer printed this hot is not a detail but a requirement.

Physical properties

Property	Condition	Value	Test method
Density		1.27 g/cm3	ISO 1183
Melt Volume Rate	340 ºC/5.0 kg	13 cm3/10 min	ISO 1133
Melt Volume Rate	360 ºC/5.0 kg	25 cm3/10 min	ISO 1133
Moisture Absorption	23 ºC, 50% RH, 24 h	0.2%	ISO 62-4
Moisture Absorption	23 ºC, 50% RH, equilibrium	0.7%	ISO 62-4
Water Absorption	23 ºC, 24 h	0.25%	ISO 62-1
Water Absorption	23 ºC, saturated	1.25%	ISO 62-1
Mold Shrinkage-Flow	3.2 mm	0.5 to 0.7 %	Supplier method
Mold Shrinkage-xFlow	3.2 mm	0.5 to 0.7 %	Supplier method
Specific Gravity		1.27	ASTM D792
Water Absorption	23 ºC, 24 h, ASTM	0.25%	ASTM D570
Water Absorption	23 ºC, saturated, ASTM	1.25%	ASTM D570
Melt Flow Rate	337 ºC/6.6 kgf	17.8 g/10 min	ASTM D1238
Poisson's Ratio		0.36	ASTM E132

Mechanical properties

Property	Condition	Value	Test method
Tensile Stress	Yield, 50 mm/min	110 MPa	ISO 527
Tensile Strain	Yield, 50 mm/min	6%	ISO 527
Tensile Strain	Break, 50 mm/min	50%	ISO 527
Tensile modulus	1 mm/min	3200 MPa	ISO 527
Flexural Stress	Yield, 2 mm/min	160 MPa	ISO 178
Flexural Modulus	2 mm/min	3300 MPa	ISO 178
Ball Indentation Hardness	H358/30	140 MPa	ISO 2039-1
Hardness, Rockwell M		106	ISO 2039-2
Charpy Impact Strength	V-notch, 23 ºC, edgewise, 80x10x4, span 62 mm	4 kJ/m2	ISO 179/1eA
Charpy Impact Strength	V-notch, -30 ºC, edgewise, 80x10x4, span 62 mm	4 kJ/m2	ISO 179/1eA
Notched Izod Impact Strength	23 ºC, 80x10x4	5 kJ/m2	ISO 180/1A
Notched Izod Impact Strength	-30 ºC, 80x10x4	5 kJ/m2	ISO 180/1A
Unnotched Izod Impact Strength	23 ºC, 80x10x4	No Break	ISO 180/1U
Unnotched Izod Impact Strength	-30 ºC, 80x10x4	No Break	ISO 180/1U
Taber Abrasion Resistance	1000 cycles, CS-17, 1 kg	10 mg	ASTM D1044
Tensile Stress	Yield, Type I, 50 mm/min	115 MPa	ASTM D638
Tensile Strain	Yield, Type I, 50 mm/min	7%	ASTM D638
Tensile Strain	Break, Type I, 50 mm/min	60%	ASTM D638
Tensile Stress	Yield, Type I, 5 mm/min	110 MPa	ASTM D638
Tensile Strain	Yield, Type I, 5 mm/min	7%	ASTM D638
Tensile Strain	Break, Type I, 5 mm/min	60%	ASTM D638
Tensile modulus	5 mm/min	3350 MPa	ASTM D638
Flexural Stress	Yield, 1.3 mm/min, 50 mm span	165 MPa	ASTM D790
Flexural Modulus	1.3 mm/min, 50 mm span	3200 MPa	ASTM D790
Flexural Stress	Yield, 2.6 mm/min, 100 mm span	160 MPa	ASTM D790
Flexural Modulus	2.6 mm/min, 100 mm span	3400 MPa	ASTM D790
Hardness, Rockwell M	ASTM	109	ASTM D785
Reverse Notched Izod Impact Strength	3.2 mm	1174 J/m	ASTM D256
Gardner Impact	23 ºC	33 J	Supplier method
Unnotched Izod Impact Strength	23 ºC	1600 J/m	ASTM D4812
Unnotched Izod Impact Strength	-30 ºC	1500 J/m	ASTM D4812
Notched Izod Impact Strength	23 ºC	32 J/m	ASTM D256
Notched Izod Impact Strength	-30 ºC	41 J/m	ASTM D256

Thermal properties

Property	Condition	Value	Test method
Heat Deflection Temperature	0.45 MPa, flatwise, 80x10x4, span 64 mm	209 ºC	ISO 75/Bf
Heat Deflection Temperature	1.8 MPa, flatwise, 80x10x4, span 64 mm	192 ºC	ISO 75/Af
Vicat Softening Temperature	A50	215 ºC	ISO 306
Vicat Softening Temperature	B50	211 ºC	ISO 306
Vicat Softening Temperature	B120	212 ºC	ISO 306
CLTE	Flow, -40 ºC to 150 ºC	5.2E-5 1/ºC	ISO 11359-2
CLTE	Transverse, -40 ºC to 150 ºC	5.2E-5 1/ºC	ISO 11359-2
Ball Pressure Test	125 ± 2 ºC	Pass	IEC 60695-10-2
Thermal Conductivity		0.22 W/m/ºC	ISO 8302
RTI Elec		170 ºC	UL 746B
RTI Imp		170 ºC	UL 746B
RTI Str		170 ºC	UL 746B
Heat Deflection Temperature	0.45 MPa, 6.4 mm, unannealed	210 ºC	ASTM D648
Heat Deflection Temperature	1.82 MPa, 6.4 mm, unannealed	201 ºC	ASTM D648
Heat Deflection Temperature	0.45 MPa, 3.2 mm, unannealed	207 ºC	ASTM D648
Heat Deflection Temperature	1.82 MPa, 3.2 mm, unannealed	190 ºC	ASTM D648
Vicat Softening Temperature	Rate B/50	211 ºC	ASTM D1525
CLTE	Flow, -20 ºC to 150 ºC	5.2E-5 1/ºC	ASTM E831
CLTE	Transverse, -20 ºC to 150 ºC	5.2E-5 1/ºC	ASTM E831
Thermal Conductivity	ASTM	0.22 W/m/ºC	ASTM C177

Electrical properties

Property	Condition	Value	Test method
Volume Resistivity		1.0E+15 ohms•cm	IEC 60093
Surface Resistivity	ROA	> 1.0E+15 ohms	IEC 60093
Electric Strength	0.800 mm, in Oil	33 kV/mm	IEC 60243-1
Electric Strength	1.60 mm, in Oil	25 kV/mm	IEC 60243-1
Electric Strength	3.20 mm, in Oil	16 kV/mm	IEC 60243-1
Relative Permittivity	50/60 Hz	2.90	IEC 60250
Relative Permittivity	1 MHz	2.90	IEC 60250
Comparative Tracking Index		150 V	IEC 60112
Comparative Tracking Index	Solution M	100 V	IEC 60112
Dielectric Constant	1.1 GHz	3.01	SPDR, dry as molded
Dielectric Constant	5 GHz	3.02	SPDR, dry as molded
Dielectric Constant	10 GHz	3.02	SPDR, dry as molded
Dissipation factor	1.1 GHz	0.0012	SPDR, dry as molded
Dissipation factor	5 GHz	0.0024	SPDR, dry as molded
Dissipation factor	10 GHz	0.0027	SPDR, dry as molded
Volume Resistivity	ASTM	1.0E+17 ohms•cm	ASTM D257
Dielectric Strength	1.6 mm, in air	32.7 kV/mm	ASTM D149
Dielectric Strength	1.6 mm, in oil	28.0 kV/mm	ASTM D149
Dielectric Strength	3.2 mm, in oil	19.7 kV/mm	ASTM D149
Relative Permittivity	100 Hz	3.15	ASTM D150
Relative Permittivity	1 kHz	3.15	ASTM D150
Comparative Tracking Index (UL)		PLC 4	UL 746A
Hot-Wire Ignition (HWI)	≥3 mm	PLC 1	UL 746A
Hot-Wire Ignition (HWI)	≥0.75 mm	PLC 2	UL 746A
High Amp Arc Ignition (HAI)	≥3 mm	PLC 3	UL 746A
High Amp Arc Ignition (HAI)	≥0.75 mm	PLC 4	UL 746A
High Voltage Arc Track Rate		PLC 2	UL 746A
Arc Resistance, Tungsten		PLC 5	ASTM D495

Flammability properties

Property	Condition	Value	Test method
Flame Rating	5VA, 3.00 mm and up	5VA	UL 94
Flame Rating	V-0, 0.75 mm and up	V-0	UL 94
Flame Rating	V-2, 0.40 mm and up	V-2	UL 94
Oxygen Index		47%	ISO 4589
Glow Wire Flammability Index	3.20 mm	960 ºC	IEC 60695-2-12
Oxygen Index	ASTM	44%	ASTM D2863
NBS Smoke Density, Flaming	Ds 4 min	2	ASTM E662
UL Yellow Card	ratings may not cover every thickness and colour	E121562-101048269

Printer settings & data sheets

An industrial hotend, and drying that is not optional.

This grade needs a nozzle between 340 and 360 °C and a bed at 120 °C, so an industrial high-temperature printer rather than a desktop machine. Print slowly and use Magigoo HT on glass or a PEI sheet.

Dry it first, every time.

Bake the filament at 120 °C for at least four hours before printing. PEI takes up over 1% of its weight in water at saturation, and a damp spool will not give you the part this material is capable of.

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Recommended print settings

Parameter	Value
Nozzle temperature	340 to 360 °C
Heated bed temperature	120 °C
Print speed	20 to 35 mm/s
Drying recommendations	120 °C, minimum 4 hours
Adhesion	Magigoo HT on glass or a PEI sheet

Empty spool weight

Filament weight	Spool	Empty weight
200 to 750 g	RS 200 GH2L PC	243 g
1000 g	RS 200 KDL PC	256 g
2000 g	RS300/15GHL PC	618 g

Measurements & tolerance

Precision-engineered consistency.

Consistent prints start with a uniform filament shape. We continuously monitor diameter and roundness during production. When filament varies in size or loses its round profile, material flow becomes erratic. This causes under-extrusion and weak layer bonds.

Our manufacturing process keeps the cross-section stable across the full spool. Your printer receives a steady volume of material without pressure drops in the nozzle. You get predictable extrusion on every job, so with PEI Ultem 1010 you can focus on your design, not your material.

1.75 mm filament

±0.05mm

Diameter tolerance, edge to edge across the spool.

2.85 mm filament

±0.10mm

Diameter tolerance, edge to edge across the spool.

Both diameters

≥95%

Cross-section roundness across the spool.

The production process

Sealed at the source. Never touched by water.*

Unlike manufacturers who cool filament in a water bath, our filament never touches water during production. Moisture inside the material creates bubbles and weakens layer bonding during printing. Water-free production keeps extrusion consistent and bubble-free.

Sealed and ready to print.
We produce on demand. Every spool is vacuum-sealed immediately after extrusion, so it reaches you dry. This process keeps every spool of PEI Ultem 1010 ready to print out of the box.

* At times of high demand, and for some variants, production may run on a conventional water-cooled line. Contact us before ordering if you require material produced with our water-free process.

Vacuum-sealed filament spool, straight off the extrusion line

Vacuum-sealed on the production line, before it ever leaves the machine.

Traceability & quality assurance

Precision you can track. From pellet to part.

We produce every spool on demand in our own facility. This gives us direct oversight that mass-produced stock lacks. Your spool comes from a fresh, identifiable batch rather than long-term warehouse inventory. We document the production trail for every run.

Documented, not just shipped.
We keep the production logs for every batch we make. On request, we link a Certificate of Analysis and Technical Data Sheet to your specific batch. You get clear data for your spool of PEI Ultem 1010.

About 3D4M

Dutch engineering for parts that define the future.

At 3D4M, we develop and manufacture high-performance thermoplastic filaments for demanding applications across aerospace, defence, semiconductor, automotive, medical research, and industrial manufacturing. We work with engineers, researchers, and manufacturers who need materials that go beyond standard specifications.

Our engineering starts with the machines themselves. We design and build our own extrusion lines around our patented extrusion process, combining material expertise with technology developed in-house. For moisture-sensitive polymers, our air-cooling technology offers a water-free cooling option, allowing us to tailor the production process to the material.

Our production facility is built on a single, uncompromising principle: control. From our extrusion technology to precise diameter monitoring and vacuum-sealed packaging, we control every stage to deliver consistent filament with batch traceability.

Trusted by global leaders
Supporting over 100 universities alongside global industry leaders, we have become a trusted partner to advanced research labs and manufacturers worldwide. We bring together material expertise and Dutch engineering to help turn ambitious ideas into reliable, high-performance parts.

3D4M headquarters in Haarlem, the Netherlands

3D4M headquarters, Haarlem, the Netherlands.

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Validating this material for your application?

The leap to a high-performance polymer can be complex. Speak directly with one of our material engineers about your printer setup, target specifications, and material performance. We are here to help you de-risk your validation phase.

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