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    14 Products
    About Selecting Thermal Insulation
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    Compare R-value and temperature range to find the insulation material that best suits your application.

    Graphite Insulation Sheets for Furnaces

    Image of Product. Front orientation. Insulation Sheets. Graphite Insulation Sheets for Furnaces.
    Insulate high-vacuum furnaces and other low-oxygen vacuum enclosures with these flexible sheets. These sheets withstand higher temperatures when used in a vacuum.
    2 ft. Long
    4 ft. Long
    Thk.
    Wd.
    Insulation
    R Value
    Flexibility
    Max. Temp.,
    ° F
    Heat Flow Rate
    @ Temp.
    Density,
    lb/ft³
    Color
    Max. Temp. in
    a Vacuum, ° F
    Each
    Each
    1/4"24"Not RatedFlexible7500.2 BTU/hr @ 2,550° F7.49Black4,3504579N1100000004579N120000000
    1/2"24"Not RatedFlexible7500.2 BTU/hr @ 2,550° F7.49Black4,3504579N130000004579N14000000

    Rigid Graphite Insulation Sheets for Furnaces

    Image of Product. Front orientation. Insulation Sheets. Rigid Graphite Insulation Sheets for Furnaces.
    Insulate high-vacuum furnaces and other low-oxygen vacuum enclosures with these rigid sheets. They withstand higher temperatures when used in a vacuum and can be machined through sawing or drilling.
    Foil Facing—Sheets are foil faced to increase heat retention and longevity.
    Wd.
    Lg.
    Insulation
    R Value
    Facing
    Material
    Flexibility
    Max. Temp.,
    ° F
    Max. Facing
    Temp., ° F
    Heat Flow Rate
    @ Temp.
    Density,
    lb/ft³
    Color
    Max. Temp. in
    a Vacuum, ° F
    Each
    1" Thick
    24"52"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N110000000
    40"60"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1200000000
     
    1 1/2" Thick
    24"52"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1300000000
    40"60"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1400000000
     
    2" Thick
    24"52"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1500000000
    40"60"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1600000000
     
    4" Thick
    24"52"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1700000000
    40"60"Not RatedFoilRigid7509501.7 BTU/hr @ 1,500° F14.98Black5,4304346N1800000000
     

    High-Strength Ultra-High-Temperature Thread

    Image of Product. Front orientation. Thread. High-Strength Ultra-High-Temperature Thread.
    Image of Product. Front orientation. ZoomedIn view. Thread. High-Strength Ultra-High-Temperature Thread.
    This twisted carbon thread handles temperatures up to 4350° F in low-oxygen vacuum environments. Use it to sew or band graphite insulation or to wrap around parts for insulation. It is strong and corrosion resistant.
    Dia.
    Breaking Strength,
    lbf
    Lg.,
    ft.
    Material
    Color
    Can Be
    Spliced
    Max. Temp.,
    ° F
    Application
    Each
    0.075"160490CarbonBlackYes4,350Not for Lifting7399N110000000
    0.079"230410CarbonBlackYes4,350Not for Lifting7399N12000000
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