Conductive Foam | McMaster-Carr

	Thickness Thickness

1/8"

1/4"

	Width Width

12"

24"

36"

	Length Length

	Cell Type Cell Type


Closed	Open

	Texture Texture


Coarse	Smooth

	Color Color

	Black
	Gray

	Hardness Rating Hardness Rating

Medium

Not Rated

	Flexibility Flexibility


Flexible	Semi-Rigid

	Material Material

Foam

Carbon

	Maximum Temperature Maximum Temperature

	Density Density

1.3 lbs./cu. ft.

2.8 lbs./cu. ft.

3 lbs./cu. ft.

	Pressure to Compress 25% Pressure to Compress 25%

13 psi

Not Rated

	Tensile Strength Tensile Strength

	Tensile Strength Rating Tensile Strength Rating

Fair

Good

	Surface Resistivity Surface Resistivity

10⁴ ohms

10⁵-10⁹
ohms

1.96 × 10^-2
ohms/sq.

3.94 × 10^-2
ohms/sq.

7.87 × 10^-2
ohms/sq.

	Minimum Temperature Minimum Temperature

-95° F

Not Rated

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

DFARS Specialty Metals
COTS-Exempt

	Pores Per Inch Pores Per Inch

100

	Flow Rating Flow Rating

Low

High

Medium

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About Foam

Conductive

Protect electronic components from electrostatic shocks and chemicals while safeguarding them from bumps and drops during shipping and storing. This closed-cell polyethylene foam is more chemical and puncture resistant than open-cell polyurethane foam, but is not as impact resistant. It’s also great for insulating items from external temperatures. The closed-cell construction means it won’t absorb water, air, and gases.

Conductive foam safely diverts static charges away from parts, and does not generate static electricity. Containing carbon, it keeps its conductive properties, so it’s reusable and good for long-term storing applications.

Conductive Sheets with Smooth Texture

Color: Black
Temperature Range: See table
Cell Type: Closed
For Use Outdoors: No
Flexibility: Semi-Rigid
Density: See table
Pressure to Compress 25%: See table
Tensile Strength Rating: See table
Oil-Resistance Rating: Not Rated

		Temperature Range, °F
Thick.	Thick. Tolerance	Min.	Max.	Density, lbs./cu. ft.	Surface Resistivity, ohms	Tensile Strength Rating	Pressure to Compress 25%		Each
12" × 12"
1/8"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
1/4"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
3/8"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
1/2"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
3/4"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
1"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
2"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	000000
12" × 48"
1/8"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	00000
24" × 36"
1/8"	-0.125" to 0.125"	-95°	150°	2.8	10⁴	Good	Not Rated	00000000	00000
1/4"	-0.125" to 0.125"	-95°	150°	2.8	10⁴	Good	Not Rated	00000000	00000
3/8"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	000000
1/2"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	000000
3/4"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	000000
1"	-0.125" to 0.125"	-95°	150°	2.8	10⁴	Good	Not Rated	00000000	000000
2"	-0.063" to 0.063"	Not Rated	280°	3	10⁵-10⁹	Fair	13 psi (Medium)	00000000	000000
36" × 48"
1/8"	-0.125" to 0.125"	-95°	150°	2.8	10⁴	Good	Not Rated	00000000	000000

Static-Control Super-Cushioning Polyurethane Foam Sheets

Cushion electronic components from impact as you protect them from electrostatic shocks during shipping and storing. This open-cell polyurethane foam withstands more impact than closed-cell polyethylene foam, but is not as good for insulating items from external temperatures. The open-cell construction also means water, air, and gases can be absorbed.

Conductive Sheets with Coarse Texture

Conductive

Color: Black
Max. Temperature: 250° F
Cell Type: Open
For Use Outdoors: No
Density: 1.3 lbs./cu. ft.
Pressure to Compress 25%: Not Rated
Tensile Strength Rating: Fair
Oil-Resistance Rating: Not Rated

			24" × 24"		36" × 36"
Thick.	Thick. Tolerance	Surface Resistivity, ohms		Each		Each
1/8"	-0.063" to 0.063"	10⁴	00000000	000000	00000000	000000
1/4"	-0.125" to 0.125"	10⁴	00000000	00000	00000000	00000
3/8"	-0.125" to 0.125"	10⁴	00000000	00000	00000000	00000
1/2"	-0.125" to 0.125"	10⁴	00000000	00000	00000000	000000
3/4"	-0.125" to 0.125"	10⁴	00000000	00000	00000000	000000
1"	-0.125" to 0.125"	10⁴	00000000	00000	00000000	000000
1 1/2"	-0.125" to 0.125"	10⁴	00000000	000000	00000000	000000

Porous Conductive Carbon

Low Flow

Medium Flow

High Flow

Color: Gray
Max. Temperature: 600° F
Tensile Strength: See table
Electrical Properties: Conductive
Surface Resistivity: See table

Often used in filtering, this brittle, glass-like carbon has pores that allow fluid and air to flow through. Its low surface resistivity also makes it a good electrical conductor. This material is also temperature and chemical resistant.

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

				3" × 3"		6" × 6"
Thick.	Tensile Strength, psi	Surface Resistivity	Texture		Each		Each
Low Flow (100 Pores Per Inch)
1/4"	50	7.87 × 10^-2 ohms/sq.	Coarse	00000000	000000	00000000	000000
1/2"	50	3.94 × 10^-2 ohms/sq.	Coarse	00000000	00000	00000000	000000
1"	50	1.96 × 10^-2 ohms/sq.	Coarse	00000000	000000	00000000	000000
Medium Flow (60 Pores Per Inch)
1/4"	40	7.87 × 10^-2 ohms/sq.	Coarse	00000000	00000	00000000	00000
1/2"	40	3.94 × 10^-2 ohms/sq.	Coarse	00000000	00000	00000000	000000
1"	40	1.96 × 10^-2 ohms/sq.	Coarse	00000000	000000	00000000	000000
High Flow (20 Pores Per Inch)
1/4"	30	7.87 × 10^-2 ohms/sq.	Coarse	00000000	00000	00000000	00000
1/2"	30	3.94 × 10^-2 ohms/sq.	Coarse	00000000	00000	00000000	000000
1"	30	1.96 × 10^-2 ohms/sq.	Coarse	00000000	000000	00000000	000000

About Foam

Static-Control Chemical-Resistant Polyethylene Foam Sheets

Static-Control Super-Cushioning Polyurethane Foam Sheets

Porous Conductive Carbon