PEEK Square Stock | McMaster-Carr

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Comparable To

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Electrical Insulating

Backing Type

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Environment

Texture

Clarity

For Use With

Methyl Ethyl Ketone (MEK)

Mineral Oil

Sodium Hydroxide (Caustic Soda)

Sodium Hypochlorite (Bleach)

Tensile Strength

14,000 psi to 16,000 psi

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3-A Certified 20-27

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For Use Outdoors

Yes

Export Control Classification Number (ECCN)

1C998

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

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57 Products

About Plastic

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

Wear- and Chemical-Resistant PEEK Sheets

With superior wear resistance in repetitive processes, these sheets resist wear caused by abrasion. PEEK is often used as a lightweight substitute for metal parts in chemical-processing applications.

	Wd.	Lg.	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Flammability Rating	Mil. Spec.	Food Industry Std.		Each
1/16" Thick



		6"	6"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K71	000000


		12"	12"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K21	000000


		5/64" Thick



				6"	6"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K72	00000


				12"	12"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K22	000000


				3/32" Thick



						6"	6"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K73	00000


						12"	12"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K23	000000


						1/8" Thick



								6"	6"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K75	000000


								12"	12"	Extruded	-20	480	Beige	—	—	3-A Sanitary Standard, FDA Standard	8504K25	000000


								1/4" Thick



										6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K34	000000


										12"	12"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K65	000000


										3/8" Thick



												6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K39	000000


												12"	12"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K69	000000


												1/2" Thick



														6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K35	000000


12"	12"													Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K66	000000


5/8" Thick



														6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K26	000000


		12"	12"											Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K44	000000


		3/4" Thick



														6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K36	000000


				12"										12"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K67	000000


				1" Thick



														6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K37	000000


														12"	12"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K68	000000


						1 1/4" Thick



														6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K27	000000


														12"	12"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K45	00000000


								1 1/2" Thick



														6"	6"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K28	000000


														12"	12"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	8504K46	00000000

Wear- and Chemical-Resistant PEEK Bars

With superior wear resistance in repetitive processes, these bars resist wear caused by abrasion. PEEK is often used as a lightweight substitute for metal parts in chemical-processing applications.

	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Flammability Rating	Mil. Spec.	Food Industry Std.	Choose a Length, ft.		Per Ft.
1" Thick



	1"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	1, 2, 4	9089K144	0000000


	1 1/2" Thick



			1 1/2"	Extruded	-20	480	Beige	UL 94 V-0	MIL-P-46183	FDA Standard	1, 2, 4	9089K918	000000

Metal-Detectable PEEK Bars

Common in food and pharmaceutical plants, these PEEK bars help you identify contaminated batches. They contain metal and chemical additives that set off metal detectors and show up on X-rays if they fall into your line, which help you comply with Hazard Analysis and Critical Control Point (HACCP) programs. All are bright blue in color, so you can find and remove them quickly. They’re also FDA compliant for direct contact with food.

These PEEK bars stand up to wear from abrasion and repetitive processes. They’re also resistant to extended contact with water, high-temperature steam, and clean-in-place (CIP) cycles with harsh cleaners and sanitizers. Due to their light weight, they’re commonly substituted for metal parts in high-stress or chemical-processing applications where weight is important.

	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Food Industry Std.	Choose a Length, ft.		Per Ft.
1" Thick



	1"	Extruded	0	480	Blue	FDA Standard	1, 3	7779N11	0000000


	2"	Extruded	0	480	Blue	FDA Standard	1	7779N13	000000

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

Machinable PEEK Sheets

These PEEK sheets can be machined to tight tolerances for use in electrical and semiconductor parts, such as test sockets. With a ceramic filler, they have excellent hardness and rigidity. The filler also acts as an effective barrier against gas and fluid permeation. These sheets maintain their shape when exposed to temperature changes. They also withstand wear from abrasion and repetitive processes.

	Lg.	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color		Each
1/16" Thick



	12"	12"	Extruded	-100	500	White	5040N11	0000000


	5/64" Thick



			12"	12"	Extruded	-100	500	White	5040N13	000000


			1/8" Thick



					12"	12"	Extruded	-100	500	White	5040N15	000000

Machine Key Stock

Cut this square or rectangular key stock to length to create a straight machine key. Straight keys are the most common type of key. Machine keys are often the same material as the shaft and other components with which they are used. To use a key as a sacrificial part, choose a softer key that will shear off when parts are exposed to excessive force, preventing damage to expensive equipment.

PEEK

PEEK key stock resists chemicals, moisture, and high temperatures. It meets MIL-P-46183 Type 1 military specifications for nonreinforced plastic.

Undersized Tolerance—Slightly smaller than the size listed in the table, undersized stock is the choice when you need a slightly looser fit or when you have an inconsistent keyway. Use it when parts need to be taken apart frequently, such as for maintenance or prototyping.

			Tolerance
	Ht. × Wd.	Tolerance Rating	Ht.	Wd.	Min. Hardness	Mil. Spec.		Each
12" Long



		3/16" × 3/16"	Undersized	-0.003" to 0.000"	-0.003" to 0.000"	Durometer 85D	MIL-P-46183 Type 1	94446A591	000000


		1/4" × 1/4"	Undersized	-0.003" to 0.000"	-0.003" to 0.000"	Durometer 85D	MIL-P-46183 Type 1	94446A594	00000

Wear- and Chemical-Resistant PEEK Film

In addition to offering excellent chemical resistance, this PEEK film is strong and wear resistant.

	Thk. Tolerance	Wd.	Lg.	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Color	Food Industry Std.		Each
Plain Backing



	0.003"	-0.0003" to 0.0003"	6"	6"	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K11	00000


	0.003"	-0.0003" to 0.0003"	12"	1 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K14	00000
	0.003"	-0.0003" to 0.0003"	24"	2 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K17	00000
	0.005"	-0.0005" to 0.0005"	6"	6"	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K12	0000
	0.005"	-0.0005" to 0.0005"	12"	1 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K15	00000
	0.005"	-0.0005" to 0.0005"	24"	2 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K18	000000
	0.01"	-0.001" to 0.001"	6"	6"	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K13	00000
	0.01"	-0.001" to 0.001"	12"	1 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K16	00000
	0.01"	-0.001" to 0.001"	24"	2 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K19	000000
	0.015"	-0.0015" to 0.0015"	6"	6"	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K111	00000
	0.015"	-0.0015" to 0.0015"	12"	1 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K114	00000


	0.015"	-0.0015" to 0.0015"	24"	2 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K117	000000
	0.02"	-0.002" to 0.002"	6"	6"	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K112	00000
	0.02"	-0.002" to 0.002"	12"	1 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K115	00000
	0.02"	-0.002" to 0.002"	24"	2 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K118	000000
	0.03"	-0.003" to 0.003"	6"	6"	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K113	00000
	0.03"	-0.003" to 0.003"	12"	1 ft.	Extruded	—	460	Semi-Clear Beige	FDA Standard	8504K116	000000


	Adhesive Backing



			0.002"	-0.0002" to 0.0002"	6"	6"	Extruded	-40	350	Semi-Clear Beige	—	4671T41	0000


			0.002"	-0.0002" to 0.0002"	12"	1 ft.	Extruded	-40	350	Semi-Clear Beige	—	4671T42	00000
			0.005"	-0.0005" to 0.0005"	6"	6"	Extruded	-40	350	Semi-Clear Beige	—	4671T51	00000
			0.005"	-0.0005" to 0.0005"	12"	1 ft.	Extruded	-40	350	Semi-Clear Beige	—	4671T52	00000
			0.01"	-0.001" to 0.001"	6"	6"	Extruded	-40	350	Semi-Clear Beige	—	4671T61	00000
			0.01"	-0.001" to 0.001"	12"	1 ft.	Extruded	-40	350	Semi-Clear Beige	—	4671T62	00000