Polyetherimide Plastic | McMaster-Carr

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17,000 psi to 17,500 psi

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EAR99

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93 Products

About Plastic

Compare over 25 types of plastic to find the right material for you.

Ultra-Electrical-Insulating Ultem PEI Rods

With excellent electrical-insulating properties, high strength, and wear resistance, these rods are often used to make electrical components. Use them for bushings, insulators, and shafts.

	Fabrication	Temp., ° F	Flammability Rating	Food Industry Std.	Choose a Length, ft.		Per Ft.
Amber



	1/4"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4, 5	8686K71	00000


	3/8"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4, 5	8686K72	0000
	1/2"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4, 5	8686K73	0000
	5/8"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4, 5	8686K74	00000
	3/4"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4, 5	8686K75	00000
	1"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4, 5	8686K76	00000
	1 1/4"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4	8686K77	00000
	1 1/2"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4	8686K78	00000
	2"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4	8686K81	000000
	2 1/2"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4	8686K82	000000
	3"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4	8686K83	000000


	3 1/2"	Extruded	-20 to 335	UL 94 V-0	FDA Standard	1, 2, 3, 4	8686K84	000000

Ultra-Electrical-Insulating Ultem PEI Sheets

With excellent electrical-insulating properties, high strength, and wear resistance, these sheets are often used to make electrical components. Use them for circuit-breaker housings, insulators, and semiconductor components.

	Wd.	Lg.	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Flammability Rating	Food Industry Std.		Each
0.04" Thick



		12"	12"	Extruded	-20	335	Semi-Clear Amber	UL 94 VTM-0	FDA Standard, NSF Standard	8685K41	000000


		12"	24"	Extruded	-20	335	Semi-Clear Amber	UL 94 VTM-0	FDA Standard, NSF Standard	8685K42	00000


		1/16" Thick



				12"	12"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard, NSF Standard	8685K43	00000


				12"	24"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard, NSF Standard	8685K44	00000


				3/32" Thick



						12"	12"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard, NSF Standard	8685K45	00000


						12"	24"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard, NSF Standard	8685K46	000000


						1/8" Thick



								12"	12"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard, NSF Standard	8685K47	00000


								12"	24"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard, NSF Standard	8685K48	000000


								1/4" Thick



										6"	6"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	7612K51	00000


										12"	12"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K511	000000
										12"	24"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K512	000000


										3/8" Thick



												6"	6"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	7612K52	00000


												12"	12"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K491	000000
												12"	24"	Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K492	000000


												1/2" Thick



6"	6"													Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	7612K53	000000


12"	12"													Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K521	000000
12"	24"													Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K522	000000


3/4" Thick



		6"	6"											Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	7612K54	000000


		12"	12"											Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K61	000000
		12"	24"											Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K62	000000


		1" Thick



				6"	6"									Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	7612K55	000000


				12"	12"									Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K531	000000
				12"	24"									Extruded	-20	335	Semi-Clear Amber	UL 94 V-0	FDA Standard	8685K532	000000

Ultra-Electrical-Insulating Ultem PEI Bars

With excellent electrical-insulating properties, high strength, and wear resistance, these bars are often used to make electrical components. Use them for insulators, machined bushings, plates, and semiconductor components.

								1 ft. Long		2 ft. Long
	Wd.	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Flammability Rating	Food Industry Std.		Each		Each
1/4" Thick



		2"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K11	000000	7612K21	000000


		4"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K31	00000	———	0


		3/8" Thick



				2"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K12	00000	7612K22	00000


				4"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K32	00000	———	0


				1/2" Thick



						2"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K13	00000	7612K23	000000


						4"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K33	000000	———	0


						3/4" Thick



								2"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K14	00000	7612K24	000000


								4"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K34	000000	———	0


								1" Thick



										2"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K15	000000	7612K25	000000


										4"	Extruded	-20	335	Amber	UL 94 V-0	FDA Standard	7612K35	000000	———	0

Plastic Selector Packs

You'll get one piece of each material listed, except the Multipurpose pack, where you'll get two pieces (one piece of nylon 6/6 and one piece of cast nylon).

Performance	Material	Wd.	Lg.	No. of Pieces		Each
High Temperature	PEEK, PFA, Polyimide, Torlon PAI, Ultem PEI	2"	2"	5	5331K91	0000000

Ultra-Electrical-Insulating Ultem PEI Film

Use this film in 3D printing operations as a build surface. It’s also widely used in semiconductor applications because it has excellent electrical insulating properties.

								1 ft. Long		2 ft. Long
	Thk.	Thk. Tolerance	Wd.	Fabrication	Temp., ° F	Color	Flammability Rating		Each		Each
Plain Backing



		0.001"	-0.0001" to 0.0001"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K18	00000	7576K15	000000


		0.002"	-0.0002" to 0.0002"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K19	0000	7576K16	00000
		0.003"	-0.0003" to 0.0003"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K21	0000	7576K11	00000
		0.005"	-0.0005" to 0.0005"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K22	00000	7576K12	00000
		0.01"	-0.001" to 0.001"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K23	00000	7576K13	00000
		0.02"	-0.002" to 0.002"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K24	00000	7576K14	00000
		0.03"	-0.003" to 0.003"	12"	Extruded	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K25	00000	7576K17	00000


		Adhesive Backing



				0.001"	-0.0001" to 0.0001"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K31	00000	7576K41	00000


				0.002"	-0.0002" to 0.0002"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K32	00000	———	0
				0.003"	-0.0003" to 0.0003"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K33	00000	7576K42	00000
				0.005"	-0.0005" to 0.0005"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K34	00000	7576K43	00000
				0.01"	-0.001" to 0.001"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K35	00000	7576K44	00000
				0.02"	-0.002" to 0.002"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K36	00000	———	0
				0.03"	-0.003" to 0.003"	12"	Cast	-20 to 335	Semi-Clear Amber	UL 94 VTM-0	7576K37	00000	———	0

3D Printer Build Surfaces

Amber

Also known as build sheets, stick these sheets to your printer bed for more accurate 3D printed parts than those made on bare printer beds, masking tape, and glue. They won’t transfer heat between your part and printer bed, which means they grip your part as it prints to keep it from shifting. Then they easily release the part without damaging it once it’s cooled. Because they’re insulating, they also protect glass printer beds from cracking due to sudden temperature changes, so you won’t need to replace the bed as often. You can reuse these sheets multiple times, since they’re durable and stand up to heat.

Use these sheets with fused filament fabrication (FFF) 3D printers. Cut them to size with scissors before sticking them to your printer bed. For large print surfaces, use primer and smoothing tools (both sold separately) to remove wrinkles and trapped air bubbles.

PEI—PEI print surfaces don’t grip as tightly as plastic-blend print surfaces, making them easier for removing sticky filaments, such as PETG. They also last longer. Their smooth exterior leaves a smooth finish on the bottom of your part.

	Wd.	Thk.	For Printer Bed Temp.	Color		Each
PEI—For Heated and Unheated Printer Beds



	6 5/16"	5 1/8"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N26	00000


	6 1/2"	6 1/2"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N27	00000
	8"	8"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N29	00000
	8 7/8"	8 7/8"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N31	00000
	9 1/4"	6 1/4"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N28	00000
	10"	6 1/2"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N3	00000
	10"	8"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N32	00000
	10"	9"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N33	00000
	10"	9 1/2"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N34	00000
	10"	10"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N35	00000
	12"	12"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N36	00000


	16"	16"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N37	00000
	19 7/8"	19 7/8"	0.014"	21° C to 150° C 70° F to 302° F	Amber	3697N38	00000

Accessories for 3D Printer Build Surfaces

		Each
Smoothing Tool	3477N11	00000
Primer (4 fl. oz. Spray Bottle)	3476N11	0000

High-Temperature PEI 3D Printer Filaments

Gold

Beige

Often used to make parts that will be used near ovens, engines, and other hot machinery, these PEI filaments remain strong and rigid in temperatures that would soften most plastic. They’re a lightweight alternative to machined metal parts. Print these filaments on a fused filament fabrication (FFF) 3D printer. Because of their high melting points, you'll need an all-metal extruder and heated printer bed to reach their minimum printing temperature. Without the heated printer bed, parts will cool too quickly and warp.

Maximum exposure temperature is the point at which a printed part will begin to deform. Above this temperature, your part will start to lose structural integrity.

Tensile Strength—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.

								Spool
	Dia., mm	Printing Temp.	For Printer Bed Temp.	Tensile Strength, psi	Hardness	Max. Exposure Temp.	For Min. Nozzle Opening Dia., mm	Dia., mm	Dp., mm	Material	Wt., g		Each
PEI—Extra High Strength, High Strength, High Temperature, Warp Resistant







				Opaque Gold

				1.75	370° to 390° C 698° to 734° F	120° to 160° C 248° to 320° F	8,120	Durometer 85D (Hard)	208° C 406° F	0.4	195	40	Plastic	500	3489N24	0000000


				PEI—Extra High Strength, High Strength, High Temperature, Highly Absorbent, Moisture Resistant, Warp Resistant







								Semi-Clear Beige

								1.75	350° to 380° C 662° to 716° F	140° to 160° C 284° to 320° F	7,830	Durometer 85D (Hard)	158° C 316° F	0.4	195	40	Plastic	500	3489N25	000000