Polyimide Sheet Stock | McMaster-Carr

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	Material Material

Foam

Plastic

	System of Measurement System of Measurement

Inch

	Thickness Thickness

	Width Width

	Length Length

	Backing Type Backing Type


Plain	Adhesive

	Shape Shape


Sheet and Bar	Film

	Maximum Temperature Maximum Temperature

Less than 500° F

500° to 999° F

	Color Color

	Amber		Black
	Brown		Gold
	Yellow

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Performance Properties Performance Properties

	Flexibility Flexibility

Flexible

Rigid

Not Rated

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Minimum Temperature Minimum Temperature

	Insulation Type Insulation Type

	Sheet/Strip

	Density Density

	Clarity Clarity

Semi-Clear

Opaque

	Texture Texture


Coarse	Smooth

	Specifications Met Specifications Met

ASTM

FAR

SAE

	Shim Stock Form Shim Stock Form

	Sheet

	Comparable To Comparable To

	Friction Rating Friction Rating

Not Slippery

Not Rated

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64 Products

About Foam

About Plastic

About Selecting Thermal Insulation

Electrical-Grade Kapton® Polyimide Film

This Kapton® polyimide film maintains outstanding strength and electrical insulating properties across a broad temperature range.

Amber plain-back film is also known as Type HN.

Black film is suitable for use as mechanical seals and electrical connectors.

For technical drawings and 3-D models, click on a part number.

Plain-Back Film—Semi-Clear Amber

Temperature Range: -450° to 750° F
Tensile Strength: 33,500 psi (Excellent)
Impact Strength: 0.58 ft.-lbs./in. (Poor)
Hardness: Not Rated
For Use Outdoors: Yes
Specifications Met:
.001", .002", and .005" Thick.: ASTM D5213, UL 94 V-0
.003" Thick.: ASTM D5213

			12" Wd.		24" Wd.
Thick.	Thick. Tolerance	Lengths		Each		Per Ft.
0.001"	-0.0001" to 0.0001"	1ft., 2ft., 3ft., 5ft., 10ft.	000000	00	0000000	000000
0.001"	-0.0001" to 0.0001"	12"	000000	000000	000000	00
0.002"	-0.0002" to 0.0002"	1ft., 2ft., 3ft., 5ft., 10ft.	000000	00	0000000	00000
0.002"	-0.0002" to 0.0002"	12"	000000	00000	000000	00
0.003"	-0.0003" to 0.0003"	1ft., 2ft., 5ft., 10ft.	000000	00	000000	00000
0.003"	-0.0003" to 0.0003"	12"	000000	00000	000000	00
0.005"	-0.0005" to 0.0005"	1ft., 2ft., 3ft., 5ft., 10ft.	000000	00	0000000	00000
0.005"	-0.0005" to 0.0005"	12"	000000	00000	000000	00

Plain-Back Film—Black

Temperature Range: -450° to 660° F
Tensile Strength: 16,500 psi (Excellent)
Impact Strength: Not Rated
Hardness: Not Rated
For Use Outdoors: Yes
Specifications Met: UL 94 V-0

		16" × 16"
Thick.	Thick. Tolerance		Each
0.01"	-0.0005" to 0.0005"	0000000	0000000
0.02"	-0.001" to 0.001"	0000000	000000

Adhesive-Back Film—Semi-Clear Amber

Temperature Range: -40° to 500° F
Tensile Strength: 33,500 psi (Excellent)
Impact Strength: 0.58 ft.-lbs./in. (Poor)
Hardness: Not Rated
For Use Outdoors: No
Specifications Met: ASTM D5213, UL 94 V-0

			12" × 12"
Thick.	Thick. Tolerance	Adhesive Type		Each
0.001"	-0.0001" to 0.0001"	Silicone	0000000	000000
0.002"	-0.0002" to 0.0002"	Silicone	0000000	00000
0.005"	-0.0005" to 0.0005"	Silicone	0000000	00000

Thermally Conductive Kapton® Polyimide Film

Because this film dissipates heat, it is often used for printed circuit boards and power supplies. It’s made of Kapton® polyimide, which provides outstanding strength across a broad temperature range.

For technical drawings and 3-D models, click on a part number.

Plain-Back Film

Color: Amber
Temperature Range: -450° to 750° F
Tensile Strength: 20,000 psi (Excellent)
Impact Strength: 0.58 ft.-lbs./in. (Poor)
Hardness: Not Rated
For Use Outdoors: No
Specifications Met: UL 94 V-0

		12" × 12"		12" × 24"		24" × 24"
Thick.	Thick. Tolerance		Each		Each		Each
0.001"	-0.0001" to 0.0001"	00000000	000000	00000000	000000	00000000	000000
0.002"	-0.0002" to 0.0002"	0000000	00000	00000000	00000	000000	00

Adhesive-Back Film

Color: Amber
Temperature Range: -40° to 300° F
Tensile Strength: 20,000 psi (Excellent)
Impact Strength: 0.58 ft.-lbs./in. (Poor)
Hardness: Not Rated
For Use Outdoors: No

			12" × 12"		12" × 24"		24" × 24"
Thick.	Thick. Tolerance	Adhesive Type		Each		Each		Each
0.001"	-0.0003" to 0.0003"	Acrylic	00000000	000000	00000000	000000	00000000	000000
0.002"	-0.0004" to 0.0004"	Acrylic	00000000	00000	00000000	00000	000000	00

Electrically Conductive Kapton® Polyimide Film

Color: Semi-Clear Black
Temperature Range: -450° to 460° F
Tensile Strength: 33,500 psi (Excellent)
Impact Strength: 0.58 ft.-lbs./in. (Poor)
Hardness: Not Rated
For Use Outdoors: No
Specifications Met: UL 94 V-0

This film conducts electricity to prevent the buildup of static charges. Made of Kapton® polyimide, it provides outstanding strength across a broad temperature range.

For technical drawings and 3-D models, click on a part number.

			12" × 12"
Thick.	Thick. Tolerance	Surface Resistivity		Each
0.001"	-0.0001" to 0.0001"	5 x 10⁶ ohms/sq.	0000000	000000

High-Temperature Plastic Selector Packs

Includes one piece of each material listed.

For technical drawings and 3-D models, click on a part number.

Material	Wd.	Lg.	Pkg. Qty.		Pkg.
PEEK Plastic, PFA Plastic, Polyimide Plastic, Torlon PAI Plastic, Ultem PEI Plastic	2"	2"	5	0000000	0000000

Lightweight High-Temperature Polyimide Foam Sheets

In addition to being lighter in weight than silicone foam, this polyimide foam also remains soft and conformable across a broader temperature range. This foam has open-cell construction, which allows water, air, and gases to be absorbed.

For technical drawings and 3-D models, click on a part number.

Sheets with Coarse Texture

Color: Yellow
Temperature Range: -300° to 400° F
Cell Type: Open
For Use Outdoors: No
Density: 0.4 lbs./cu. ft.
Pressure to Compress 25%: 1.3 psi (Ultra Soft)
Tensile Strength Rating: Fair
Oil-Resistance Rating: Not Rated

		24" × 48"		36" × 36"
Thick.	Thick. Tolerance		Each		Each
1/8"	-0.08" to 0.08"	0000000	000000	0000000	000000
1/4"	-0.09" to 0.09"	0000000	00000	0000000	00000
1/2"	-0.12" to 0.12"	0000000	000000	0000000	000000
1"	-0.25" to 0.25"	0000000	000000	0000000	000000
2"	-0.25" to 0.25"	0000000	000000	000000	00

Foam Material Sample Packs

Includes a total of 12 sheets: one of each material listed in the table.

For technical drawings and 3-D models, click on a part number.

		4" × 4"
Material	Thick.		Pkg.
Buna-N Foam, EPDM Foam, EVA Foam, Ionomer Foam, Natural Gum Foam, Neoprene Foam, Polyethylene Foam, Polyimide Foam, Polyurethane Foam, Silicone Foam, Vinyl Foam, Viton® Fluoroelastomer Foam	1/8" to 1/2"	0000000	000000

Peel-Away Layered Shim Stock

Cut this shim stock it into custom shapes to fit your application. Stock is made of layers of material bonded with adhesive; remove layers with a utility knife until you get the thickness you need. To make the layers easier to pull apart, gently heat the shim to soften the adhesive.

For accurate leveling, choose materials such as steel or stainless steel, which are hard enough to resist scratching and deforming. Softer shims, like copper or aluminum, can be used as wear plates between components that rub together, preventing damage to equipment.

Polyimide plastic shim stock is corrosion resistant, electrically insulating, and holds its shape at extreme temperatures. It's easier to peel apart than metal shim stock. Stock includes a material certificate with traceable lot number and test report.

Polyimide Plastic

					12" × 12"
Thick.	Thick. Tolerance	No. of Layers	Temperature Range, °F	Specifications Met		Each
0.002" Layer Thick. (-0.0002" to 0.0002" Tolerance)
0.01"	-0.001" to 0.0015"	5	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.016"	-0.001" to 0.0015"	8	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	00000
0.02"	-0.001" to 0.002"	10	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.032"	-0.002" to 0.003"	16	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.048"	-0.002" to 0.005"	23	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.062"	-0.002" to 0.006"	30	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.094"	-0.003" to 0.009"	46	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.124"	-0.003" to 0.012"	61	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	000000
0.004" Layer Thick. (-0.0004" to 0.0004" Tolerance)
0.008"	-0.0005" to 0.001"	2	0° to 250°	ASTM D5213, SAE AMS-DTL-22499	0000000	00000

Crack-Resistant Rigid Polyimide Insulation Sheets

Even when subjected to heavy compression, these rigid polyimide sheets won't crack. To use outdoors, add metal jacketing.

Sheets with a density of 12 lbs./cu. ft. are easier to cut than denser polyimide insulation sheets, which makes them good for die-punching applications. They are not, however, good for machining.

Sheets with a density of 60 lbs./cu. ft. are more durable than less dense polyimide insulation sheets, so they can stand up to machining. They’re often used for mold bases or press insulation.

12 lbs./cu. ft. Density

Temperature Range: -300° to 550° F
Heat Flow Rate: 0.24 Btu @ 75° F
Color: Gold
Specifications Met: UL 94 V-0

1/8" Thick.
Wd.	Lg.	R Value	Flexibility		Each
24"	24 "	0.5	Rigid	00000000	000000
48"	48 "	0.5	Rigid	00000000	000000
3/16" Thick.
24"	24 "	0.8	Rigid	00000000	000000
48"	48 "	0.8	Rigid	00000000	000000
1/4" Thick.
24"	24 "	1	Rigid	00000000	000000
48"	48 "	1	Rigid	00000000	000000
3/8" Thick.
24"	24 "	1.6	Rigid	00000000	000000

60 lbs./cu. ft. Density

Temperature Range: -300° to 550° F
Heat Flow Rate: 0.8 Btu @ 75° F
Color: Brown
Specifications Met: UL 94 V-0

1/4" Thick.
Wd.	Lg.	R Value	Flexibility		Each
12"	12 "	0.3	Rigid	0000000	0000000
12"	24 "	0.3	Rigid	0000000	000000
24"	24 "	0.3	Rigid	0000000	000000

Flame-Retardant Sound-Absorbing Sheets

This insulation meets ASTM E162 for flame retardance and ASTM E662 for smoke output. Use to quiet noisy areas and line machine enclosures. Sheets are made of polyimide foam.

Adhesive Backing
Sound Absorbed	Thick.	Wd.	Lg., ft.	Material	Color	Temp. Range, °F	Adhesive Temp. Range, °F	Specifications Met		Each
15%	1/4"	12"	1	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	000000	000000
15%	1/4"	24"	4	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	0000000	000000
35%	1/2"	12"	1	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	000000	00000
35%	1/2"	24"	4	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	0000000	000000
50%	3/4"	12"	1	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	000000	00000
50%	3/4"	24"	4	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	0000000	000000
70%	1"	12"	1	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	000000	00000
70%	1"	24"	4	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	0000000	000000
85%	2"	12"	1	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	000000	00000
85%	2"	24"	4	Polyimide Foam	Yellow	-235° to 400°	-60° to 250°	ASTM E162, ASTM E662, FAR 25.853(a), FAR 25.856	0000000	000000