Graphite Foil


What is Graphite Foil?

Graphite Foil is an excellent sealing material for high temperature, high pressure transfer of liquids, gasses, steam, chemicals, and corrosives. The material is manufactured from high purity, high crystalline natural graphite flakes, which are processed into continuous foil by special acid and thermal treatments to produce expanded graphite crystals. The expanded graphite crystals are then formed into foil through a calendaring process without any resins and binders. Fuel cell and flow battery companies are using this material as a separation layer.

Benefits

  • High purity material with excellent thermal stability and reflectivity.
  • Resistant to temperatures of 510℃ in air, 850℃ in steam, and 3000℃ in vacuum (or reducing).
  • Chemically inert with pH range of 0-14 (except strong oxidizers such as nitric or sulphuric acid).
  • Low coefficient of friction and self-lubricating.
  • Asbestos free and no associated health hazards.
  • Low electrical resistivity and high thermal conductivity.
  • Highly anisotropic. Electrical and thermal properties different parallel to and perpendicular to flakes.
  • Excellent in-process longevity – minimize replacement and down time costs.
  • Easy to cut and shape. Machine to print available for gaskets and seals.
Graphite Foil from CeraMaterials

Applications

  • Thermally conductive gasket, seal, or liner, while being heat and chemical resistant.
  • Release foils in glasswork and hot presses.
  • EMI (electromagnetic interference) and chemical shield.
  • Thermal management and heat dissipation liner.
  • Cathodes for electrolysis of liquids.
  • Dry sheet lubricant, stress sensing, vibration damping, spark plasma sintering (SPS) and other thermal electronic or electrochemical applications.

Useful Charts

Graphite Foil Properties
PropertiesUnitsStandard PurityHigh PurityNuclear Grade
Carbon Content%9999.799.9
Sulfur Contentppm1000300< 200
Chloride Contentppm45100
Ash%1.00.50.0
Densityg/cm³1.01.01.0
Tensile StrengthMpa4.55.56.5
Compressive StrengthMpa180200220
Compressing Modulus%120.0120.0120.0
Recovery%> 10%> 10%> 10%
Specific ResistanceμΩ-m5710
Compatible pHpH0-140-140-14
Max Temp in Air510510510
Max Temp in Steam850850850
Max Temp in Vacuum300030003000
AvailabilityIn StockIn StockSpecial Order Only
Graphite Foil Roll Info & Pricing
ProductThickness
Inches
Width
Inches
Length
Feet
Price
USD
High Purity Graphite Foil
2010A
0.005"39.4"100'$269.00
0.010"39.4"100'$355.00
0.015"39.4"100'$649.00
0.030"39.4"100'$1,051.00
0.040"39.4"100'$1,650.00
Standard Purity Graphite Foil
2010B
0.005"39.4"100'$132.00
0.005"39.4"500'$470.00
0.010"39.4"100'$165.00
0.015"39.4"100'$220.00
0.020"39.4"100'$297.00
0.020"39.4"200'$545.00
0.025"39.4"100'$412.00
0.030"39.4"100'$401.00
0.030"39.4"200'$685.00
0.040"39.4"100'$560.00
Graphite Foil Sheets from Rolls Info & Pricing
ProductThickness
Inchesq
Width
Inches
Length
Feet
Price
USD
High Purity Graphite Foil
2010A
0.005"39.4" 39.4"$16.00
0.015"39.4" 39.4" $30.00
0.040"39.4" 39.4" $62.00
Standard Purity Graphite Foil
2010B
0.005"39.4" 39.4" $14.00
0.010"39.4" 39.4" $17.00
0.015"39.4" 39.4" $22.00
0.020"39.4" 39.4" $27.00
0.030"39.4" 39.4" $30.00
0.040"39.4" 39.4" $34.00

Ready to order?

  • Rolls up to 0.020″ inches thick can be shipped by UPS. Thicker rolls must be ship freight.
  • Stock rolls can be cut to 1/2″ widths with a minimum order of five rolls.
  • 60″ inch wide foil rolls can be manufactured in all thicknesses ranging from 0.006″ – 0.060″ and up to 1000′ feet long.
  • Less than a roll lengths are available and cut to order. Minimums may apply.
  • Custom shapes and gaskets cut to print – tooling charges may apply.
  • Sheets available up to 60″ x 60″ inches & thicknesses ranging from 0.005″ – 0.25″ or precut into custom shapes made to print. Tooling charges may apply.
  • Nuclear grade not stocked and only available for large volume orders.
  • Volume discounts up to 50%.
  • If you have any additional questions or need a custom quote, our team is always available to help.

Downloadables

Graphite-Foil-brochure


What are Reinforced Graphite Sheets?

Reinforced graphite sheets, used in many applications, is one of the most ideal gasket and sealing materials on the market (Graphite Sheet, Graphite Laminate). The sheets are manufactured with high purity flexible graphite foil reinforced with metallic or non-metallic inserts in the middle of two graphite foil sheets. Insert materials provide additional strength for high pressure applications and better handling.

Types of sheets offered.

2030L Standard – A plain graphite foil sheet, homogeneous or laminated, without reinforcement insert.
2030R with Stainless Steel Reinforcement – A graphite foil sheet laminate with .002″ thick stainless steel insert reinforcement, adhesively bonded.
2030E with Stainless Steel Tang Reinforcement – A graphite foil sheet laminate with .004″ thick perforated stainless steel tang insert reinforcement, mechanically bonded.
2030S with Wire Mesh Reinforcement – A graphite foil sheet laminate with stainless steel wire mesh insert reinforcement, adhesively bonded.
2030P with Mylar Reinforcement –  A graphite foil sheet laminate with .0005″ thick polyester (PET, Mylar) insert adhesively bonded.

Benefits

  • Flexible and comfortable to seal imperfect surfaces.
  • Heat, flame, and chemical resistant. Material is compatible with most corrosive chemicals.
  • Suitable for high pressure applications.
  • Low creep relaxation and no aging.
  • Non-hazardous and RoHS compliant.
Graphite Foil with Reinforced Insert Material

Applications

2030L Standard

  • Flange gasket in relatively low pressure sealing condition.
  • Ideal filler material for metal jacketed gaskets (corrugated metal gaskets, heat exchanger gaskets).

2030R with Stainless Steel Reinforcement

  • Ideal sheet gasket material for industrial fluid sealing.Recommended for 150-300 class service.
  • Typically used in refineries, chemical and petrochemical plants, paper mills, and other industrial applications.
  • Meets stringent emission regulations and is blow-out resistant.

2030E with Stainless Steel Tang Reinforcement

  • Ideal sheet gasket material for industrial fluid sealing.Recommended for 150-300 class service.
  • Typically used in refineries, chemical and petrochemical plants, paper mills, and other industrial applications.
  • Meets stringent emission regulations and is blow-out resistant.
  • May substitute spiral wound gaskets. Recommended for 150-300 class service.

2030S with Wire Mesh Reinforcement 

  • Ideal sheet gasket material for industrial fluid sealing.Recommended for 150-300 class service.
  • Typically used in refineries, chemical and petrochemical plants, paper mills, and other industrial applications.
  • Meets stringent emission regulations and is blow-out resistant.

2030P with Mylar Reinforcement

  • Used for flange gasket in relatively low pressure sealing conditions.

Useful Charts

Flexible Graphite Sheets Info & Pricing
Thickness
Length x Width
1/32"
Meter²
1/16"
Meter²
1/8"
Meter²
1/32"
60" x 60"
1/16"
60" x 60"
1/8"
60" x 60"
2030L Standard
(GHL Equiv)
$15.00$25.00$55.00$41.00$71.50$143.00
2030R w/ SS Foil
Reinforcement
(GHR Equiv)
$55.00$60.00$80.00$134.00$145.00$250.00
2030E w/ SS Tang
Reinforcement
(GHE Equiv)
$66.00$83.00$105.00N/A$187.00$253.00
2030S w/ Wire Mesh
Reinforcement
(GHS Equiv)
$62.00$71.00$106.00$128.00$154.00$226.00
2030P w/ Mylar
Reinforcement
(GHP Equiv)
$28.00$45.00$70.00$62.00$85.00$155.00

Ready to order?

  • Sheets can be custom cut to any size and shape.
  • Additional crating cost of $30 for Meter² and $50 for 60″ x 60″.
  • Square meter sheets ship by UPS but 60″ sheets must ship freight.
  • If you have any additional questions or need a custom quote, our team is always available to help.

Downloadables

Coming soon!


What is Graphite Foil Crinkle Cut Tape?

This tape is slit and corrugated from standard purity graphite foil. 99% graphite carbon with no filler or binder. The tape is offered with an adhesive back (2020-ZH) and without (2020-Z). Special treatments for corrosion and oxidation resistance are available upon request.

Benefits

  • Compressible, conformable, and low creep relaxation.
  • Thermally and electrically conductive.
  • Heat, fire, and chemical resistant. Compatible with most chemicals.
Graphite Foil or Grafoil Crinkle Cut Tape

Applications

  • 2020-Z is the material used for making die-formed graphite rings.
  • 2020-ZH is used as form-in-place gaskets, valve stem packing, thread seal, or other irregular gasket/seal shapes.

Useful Charts

Graphite Foil Crinkle Cut Tape Info & Pricing
Width
Inches
Length
Feet
Grade 2020-Z
No Adhesive
2020-ZH
Adhesive Backing
Thickness
Inches
0.12550$1.25N/A0.015
0.2550$2.30$4.200.015
0.5050$3.30$5.850.015
0.7550$4.60$8.200.015
1.0050$5.80$10.250.015
1.550N/A$15.750.015

Ready to order?

If you have any additional questions or need a custom quote, our team is always available to help.