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Surface Resistivity Surface Resistivity |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Maximum Pressure Maximum Pressure |
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Grain Size Grain Size |
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Certificate Certificate |
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Compressible Graphite Sheets
- Color: Gray
- Temperature Range: -400° to 950° F
- Tensile Strength: 700 psi
- Electrical Properties: Conductive
- Surface Resistivity: 102 ohms/sq.
For use as seals and gaskets in high-temperature environments, this graphite can compress up to 35% of its thickness for a tight seal.
For technical drawings and 3-D models, click on a part number.
Reinforced Compressible Graphite Sheets
- Color: Gray
- Temperature Range: -400° to 950° F
- Tensile Strength: 5,000psi
- Electrical Properties: Conductive
- Surface Resistivity: 102 ohms/sq.
A stainless steel insert makes this material stronger than standard compressible graphite. For use as seals and gaskets in high-temperature environments, this graphite can compress up to 35% of its thickness for a tight seal.
For technical drawings and 3-D models, click on a part number.
12" × 12" | 24" × 12" | 36" × 36" | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Max. Temperature in a Vacuum, °F | Insert Thickness | Each | Each | Each | |||
| 1/32" | -0.031" to 0.031" | 4500° | 0.002" | 0000000 | 000000 | 0000000 | 000000 | 0000000 | 0000000 |
| 1/16" | -0.031" to 0.031" | 4500° | 0.002" | 0000000 | 00000 | 0000000 | 000000 | 0000000 | 000000 |
| 1/8" | -0.047" to 0.047" | 4500° | 0.002" | 0000000 | 00000 | 0000000 | 000000 | 0000000 | 000000 |
Conductive Graphite Sheets and Bars
- Color: Black
- Max. Temperature: 800° F
- Tensile Strength: 5,500 psi
- Electrical Properties: Conductive
- Surface Resistivity: See table
A low surface resistivity makes this graphite a good electrical conductor. Since this graphite won't adhere to metal, it can be used to fabricate furnace parts, crucibles, and ingot molds.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Max. Temperature in a Vacuum, ° F | Surface Resistivity | Grain Size | Each | |
4" × 6" | ||||||
|---|---|---|---|---|---|---|
| 1/4" | -0.005" to 0.005" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 000000 |
| 1/2" | -0.005" to 0.005" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1" | -0.005" to 0.005" | 5000° | 5.5 × 10-4 ohms/sq. | 0.0004" | 0000000 | 00000 |
6" × 6" | ||||||
| 1/4" | -0.005" to 0.005" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1" | -0.005" to 0.005" | 5000° | 5.5 × 10-4 ohms/sq. | 0.0004" | 0000000 | 00000 |
12" × 12" | ||||||
| 1/4" | -0.005" to 0.005" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 000000 |
| 1/2" | -0.005" to 0.005" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 000000 |
| 1" | -0.005" to 0.005" | 5000° | 5.5 × 10-4 ohms/sq. | 0.0004" | 0000000 | 000000 |
| Thick. | Thick. Tolerance | Wd. | Max. Temperature in a Vacuum, ° F | Surface Resistivity | Grain Size | Each | |
3" Lg. | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | -0.005" to 0.005" | 1/4" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/4" | -0.005" to 0.005" | 1/2" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/4" | -0.005" to 0.005" | 1" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 1/2" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 1" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1" | -0.005" to 0.005" | 1" | 5000° | 5.5 × 10-4 ohms/sq. | 0.0004" | 0000000 | 00000 |
6" Lg. | |||||||
| 1/4" | -0.005" to 0.005" | 1/4" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/4" | -0.005" to 0.005" | 1/2" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/4" | -0.005" to 0.005" | 1" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 1/2" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 1" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1" | -0.005" to 0.005" | 1" | 5000° | 5.5 × 10-4 ohms/sq. | 0.0004" | 0000000 | 00000 |
12" Lg. | |||||||
| 1/4" | -0.005" to 0.005" | 1/4" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/4" | -0.005" to 0.005" | 1/2" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/4" | -0.005" to 0.005" | 1" | 5000° | 2.2 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 1/2" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1/2" | -0.005" to 0.005" | 1" | 5000° | 1.1 × 10-3 ohms/sq. | 0.0004" | 0000000 | 00000 |
| 1" | -0.005" to 0.005" | 1" | 5000° | 5.5 × 10-4 ohms/sq. | 0.0004" | 0000000 | 00000 |
Ultra-Fine-Grain Conductive Graphite Sheets
- Color: Black
- Max. Temperature: 800° F
- Tensile Strength: 6,670 psi
- Electrical Properties: Conductive
- Surface Resistivity: See table
This graphite is denser and slightly stronger than standard conductive graphite because it has a smaller grain. A low surface resistivity makes this graphite a good electrical conductor. Since this graphite won't adhere to metal, it can be used to fabricate furnace parts, crucibles, and ingot molds.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Max. Temperature in a Vacuum, °F | Surface Resistivity | Grain Size | Each | |
4" × 6" | ||||||
|---|---|---|---|---|---|---|
| 1/4" | -0.005" to 0.005" | 5000° | 2.36 × 10-2 ohms/sq. | 0" | 0000000 | 000000 |
| 1/2" | -0.005" to 0.005" | 5000° | 1.18 × 10-2 ohms/sq. | 0" | 0000000 | 000000 |
6" × 6" | ||||||
| 1/4" | -0.005" to 0.005" | 5000° | 2.36 × 10-2 ohms/sq. | 0" | 0000000 | 000000 |
| 1/2" | -0.005" to 0.005" | 5000° | 1.18 × 10-2 ohms/sq. | 0" | 0000000 | 000000 |
Ultra-Conductive Graphene Sheets
This highly conductive graphene material is often used in electronic devices, such as cell phones, laptop computers, digital cameras, and LEDs. It can be folded without tearing or damaging the sheet and can be cut into smaller pieces with scissors. Thickness, width, and length tolerances are not rated.
For technical drawings and 3-D models, click on a part number.
| Thickness | Thickness Tolerance | Width | Length | Each | |
| 0.001" | Not Rated | 8" | 8" | 000000 | 000000 |
Ultra-Conductive Graphene on Silicon Wafers
Already set on a silicon wafer, these highly conductive graphene sheets are ready for use in semiconductors, advanced sensors, and electrodes. They are 200 times stronger than steel by weight and are also flexible. An oxide layer lies between the graphene and the silicon wafer for passivation and acts as a protective layer in device processing. Best stored under vacuum or in an inert atmosphere, these sheets come in a double vacuum-sealed bag to maintain shelf life.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Ultra-Conductive Graphene on Copper Foil
Grown by chemical vapor deposition (CVD) on copper foil, this highly conductive graphene material can be transferred using chemical methods such as polymer-supported metal etching, and mechanical methods such as thermal release tape and direct transfer. This graphene foil is 200 times stronger than steel by weight and is also flexible. It comes taped to the corners of a plastic container in a double vacuum-sealed bag to maintain shelf life. Do not remove the packaging until ready to use. Gently peel the tape or cut the corners of the foil to release. Use rolling blades or precision knives to cut the foil.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
High-Temperature High-Pressure Graphite Gasket Material
These sheets and discs can withstand temperatures up to 850° F and pressure up to 2,000 psi. Use them when a strong seal is required in boilers and furnaces. Cut with a utility knife.
Discs are graphite with stainless steel layers; this high-strength material is commonly known as Hochdruck.
Sheets are graphite; they offer excellent compression under moderate loads.
1/32" Thick. | 1/16" Thick. | 1/8" Thick. | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg. | Max. Pressure, psi | Temperature Range, °F | Color | Each | Each | Each | |||
| 12" | 12" | 2,000 | -400° to 850° | Gray | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
| 24" | 24" | 2,000 | -400° to 850° | Gray | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 000000 |
| 39" | 39" | 2,000 | -400° to 850° | Gray | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
| 60" | 60" | 2,000 | -400° to 850° | Gray | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
High-Temperature High-Pressure Fire-Rated Graphite Gasket Material
Made of American Bureau of Shipping Fire Safe approved graphite material, these sheets withstand temperatures up to 650° F and pressure up to 2,000 psi. Use them when a strong seal is required in boilers and furnaces. Cut with a utility knife.
1/32" Thick. | 1/16" Thick. | 1/8" Thick. | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Lg. | Max. Pressure, psi | Temperature Range, °F | Color | Each | Each | Each | |||
| 6" | 6" | 2,000 | -100° to 650° | Brown | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
| 15" | 15" | 2,000 | -100° to 650° | Brown | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 000000 |
| 30" | 30" | 2,000 | -100° to 650° | Brown | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
| 30" | 60" | 2,000 | -100° to 650° | Brown | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 |
High-Temperature Extreme-Pressure Graphite Gasket Material
Able to withstand pressure up to 10,000 psi, these are our highest pressure-rated gasket sheets. They handle temperatures up to 850° F. Use them when a strong seal is required in boilers and furnaces. Cut with a utility knife.
| Wd. | Lg. | Max. Pressure, psi | Temperature Range, °F | Color | Insert Material | Each | |
1/32" Thick. | |||||||
|---|---|---|---|---|---|---|---|
| 12" | 12" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
| 24" | 24" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 00000 |
| 39" | 39" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
| 60" | 60" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
1/16" Thick. | |||||||
| 12" | 12" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 00000 |
| 24" | 24" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
| 39" | 39" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
| 60" | 60" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
1/8" Thick. | |||||||
| 12" | 12" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 00000 |
| 24" | 24" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
| 39" | 39" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
| 60" | 60" | 10,000 | -400° to 850° | Gray | Stainless Steel | 00000000 | 000000 |
Gasket Material Assortments
Each assortment includes a variety of materials.
| No. of Pieces | Wd. | Lg. | Includes | Pkg. | |
| 4 | 12" | 36" | Brown/Black Buna-N/Cork (0° to 250° F)—1 sheet of 1/16" thick Gray Blended Fiber/Buna-N (Max. 350° F)—1 sheet of 1/32" thick Gray Paper/SBR (Max. 350° F)—1 sheet of 1/64" thick, 1 sheet of 1/32" thick | 0000000 | 000000 |
| 7 | 12" | 12" | Black Buna-N (-20° to 170° F)—2 sheets of 1/16" thick Black Viton® Fluoroelastomer (-20° to 400° F)—1 sheet of 1/16" thick Gray Graphite with SS Insert (-400° to 975° F)—1 sheet of 1/16" thick Green Aramid Fiber (Max. 750° F)—2 sheets of 1/16" thick White PTFE (-100° to 400° F)—1 sheet of 1/16" thick | 0000000 | 00000 |
| 14 | 6" | 6" | Black SBR with Cloth Reinforcement (-20° to 212° F)—2 sheets of 1/8" thick Red SBR (-20° to 200° F)—3 sheets of 1/16" thick, 2 sheets of 1/8" thick Tan Neoprene/Cork (0° to 212° F)—2 sheets of 1/16" thick, 2 sheets of 1/8" thick Tan Vegetable Fiber (0° to 250° F)—3 sheets of 1/16" thick | 0000000 | 00000 |
| 14 | 12" | 12" | Black SBR with Cloth Reinforcement (-20° to 212° F)—2 sheets of 1/8" thick Red SBR (-20° to 200° F)—3 sheets of 1/16" thick, 2 sheets of 1/8" thick Tan Neoprene/Cork (0° to 212° F)—2 sheets of 1/16" thick, 2 sheets of 1/8" thick Tan Vegetable Fiber (0° to 250° F)—3 sheets of 1/16" thick | 0000000 | 00000 |
Made-to-Order High-Temperature Graphite Gaskets
When you need a unique shape or size graphite gasket, we will precision cut one for you using your DXF file. This material, also known as Hochdruck, is graphite with stainless steel layers for added strength in hot environments.
First select a thickness, then select a sheet size that’s large enough to accommodate your gasket. Finally, send us your DXF file. Depending on the size of your gasket, we’ll send you as many same-design gaskets as a sheet will yield, up to 20 gaskets for 12"×12" sheets, and up to 40 gaskets for 24"×24" sheets.