Shape Shape |
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Rod and Disc | Wire |
Material Material |
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Performance Properties Performance Properties |
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Hardness Rating Hardness Rating |
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Maximum Temperature Maximum Temperature |
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Tensile Strength Tensile Strength |
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Flexibility Flexibility |
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![]() | Semi-Rigid |
Specifications Met Specifications Met |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Flexural Modulus Flexural Modulus |
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Density Density |
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Hardness Hardness |
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Clarity Clarity |
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Impact Strength Rating Impact Strength Rating |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Plastic
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Electrical-Insulating Ultem PEI Rods

- Color: Semi-Clear Amber
- Temperature Range: -20° to 335° F
- Tensile Strength: 17,000-17,500 psi (Excellent)
- Impact Strength: 0.5-0.6 ft.-lbs./in. (Poor)
- Hardness: Rockwell R111-R125 (Extra Hard)
- For Use Outdoors: No
- Specifications Met: ASTM D5205, ASTM D7293, FDA Compliant 21 CFR 177.1595, UL 94 V-0
These rods offer excellent electrical-insulating properties. They’re often used for circuit-breaker housings, manifolds, and semiconductor components.
For technical drawings and 3-D models, click on a part number.
Dia. | Dia. Tolerance | Dielectric Strength | Lengths, ft. | Per Ft. | |
1/4" | 0.000" to 0.003" | 830 V/mil | 0000000 | 00000 | |
3/8" | 0.000" to 0.003" | 830 V/mil | 0000000 | 0000 | |
1/2" | 0.000" to 0.003" | 830 V/mil | 0000000 | 0000 | |
5/8" | 0.000" to 0.003" | 830 V/mil | 0000000 | 00000 | |
3/4" | 0.000" to 0.003" | 830 V/mil | 0000000 | 00000 | |
1" | 0.000" to 0.003" | 830 V/mil | 0000000 | 00000 | |
1 1/4" | 0.000" to 0.005" | 830 V/mil | 0000000 | 00000 | |
1 1/2" | 0.000" to 0.005" | 830 V/mil | 0000000 | 00000 | |
2" | 0.000" to 0.005" | 830 V/mil | 0000000 | 000000 | |
2 1/2" | 0.000" to 0.015" | 830 V/mil | 0000000 | 000000 | |
3" | 0.000" to 0.250" | 830 V/mil | 0000000 | 000000 | |
3 1/2" | 0.000" to 0.250" | 830 V/mil | 0000000 | 000000 |
Static-Dissipative High-Temperature 3D Printer Filaments

Not only do parts printed from these filaments protect sensitive electronics, but they also hold their shape in temperatures that would deform or degrade most plastic. Use them to make parts for hot environments, such as engines, ovens, or lighting equipment. These filaments combine heat-tolerant plastic with a static-dissipative material that keeps static from building up and prevents shocks.
Use these filaments with a fused filament fabrication (FFF) 3D printer. They require an all-metal extruder to reach the recommended printing temperatures, and should be printed onto a heated bed to keep parts from warping as they cool.
PEI filaments have electrical-insulating properties, which make them good for printing circuit-breaker housings and semiconductor components.
Use an electrical resistance tester to make sure printed parts meet proper resistivity levels. In general, the target surface resistivity for PVDF is 106 to 109 ohms, and for PEI and PEKK it's 106 to 107 ohms. To adjust your measurements, change the temperature of your printer's extruder. As the extruder's temperature increases, so will the printed part's resistivity.
Tensile strength is the best measure of a filament's overall strength. Similar to the stress applied on a rope during a game of tug-of-war, it's the amount of pulling force a material can handle before breaking. A higher rating means a stronger filament. A tensile strength of 5,000 psi and above is considered good; 12,000 psi and above is excellent.
Maximum exposure temperature is the point at which a printed part will begin to deform. Above this temperature, your printed parts will start to lose structural integrity.
Spool | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia., mm | Printing Temp. | For Printer Bed Temp. | Tensile Strength | Max. Exposure Temp. | For Min. Nozzle Opening Dia., mm | Dia., mm | Dp., mm | Wt., g | Color | Each | |
PEI Plastic | |||||||||||
1.75 | 360° to 390° C 680° to 734° F | 140° to 160° C 284° to 320° F | 8,990 psi (Good) | 205° C 401° F | 0.4 | 195 | 40 | 500 | Black | 0000000 | 0000000 |
High-Temperature 3D Printer Filaments
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Parts made with these filaments remain strong and rigid in temperatures that would soften most plastics. They are a lightweight alternative to machined metal parts. Use with a fused filament fabrication (FFF) 3D printer to make parts that will be used near ovens, engines, and other hot machinery. These filaments require an all-metal extruder to reach the recommended printing temperatures. Print parts onto a heated bed to keep them from warping as they cool.
PEI filaments have electrical-insulating properties, which make them good for printing circuit-breaker housings and semiconductor components.
Tensile strength is the best measure of a filament's overall strength. Similar to the stress applied on a rope during a game of tug-of-war, it's the amount of pulling force a material can handle before breaking. A higher rating means a stronger filament. A tensile strength of 5,000 psi and above is considered good; 12,000 psi and above is excellent.
Maximum exposure temperature is the point at which a printed part will begin to deform. Above this temperature, your printed parts will start to lose structural integrity.
Spool | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dia., mm | Printing Temp. | For Printer Bed Temp. | Tensile Strength | Max. Exposure Temp. | For Min. Nozzle Dia., mm | Dia., mm | Dp., mm | Wt., g | Color | Each | |
PEI Plastic | |||||||||||
1.75 | 350° to 380° C 662° to 716° F | 140° to 160° C 284° to 320° F | 7,830 psi (Good) | 158° C 316° F | 0.4 | 195 | 40 | 500 | Semi-Clear Beige | 0000000 | 0000000 |
1.75 | 370° to 390° C 698° to 734° F | 120° to 160° C 248° to 320° F | 8,120 psi (Good) | 208° C 406° F | 0.4 | 195 | 40 | 500 | Opaque Gold | 0000000 | 000000 |