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    30 Products

    Nonporous Ceramic Alumina Sheets and Bars

    Made from nonporous alumina, these sheets and bars resist gas and air permeation for sealed furnace linings, kiln furniture, and vacuum-system components. Alumina's high hardness and compressive strength outperform metals and most other ceramics in abrasive environments.
    Sheets
    Image of Product. Front orientation. Ceramic. Nonporous Ceramic Alumina Sheets and Bars.
    Temp.
    Thk.
    Thk. Tolerance
    Wd.
    Lg.
    Min.
    Max.,
    ° F
    Dielectric Strength,
    V/mil
    Color
    Fabrication
    Performance
    Porosity
    Compressive
    Strength, psi
    Each
    0.010"-0.001" to 0.001"4 1/2"4 1/2"Not Rated3,100250WhiteFiredElectrical Insulating0%300,0008462K42000000
    0.015"-0.002" to 0.002"4 1/2"4 1/2"Not Rated2,910210WhiteFiredElectrical Insulating0%300,0008462K2400000
    0.020"-0.002" to 0.002"4 1/2"4 1/2"Not Rated2,910210WhiteFiredElectrical Insulating0%300,0008462K2600000
    0.025"-0.006" to 0.006"4 1/2"4 1/2"Not Rated3,100250WhiteFiredElectrical Insulating0%300,0008462K4300000
    0.030"-0.003" to 0.003"4 1/2"4 1/2"Not Rated2,910210WhiteFiredElectrical Insulating0%300,0008462K2700000
    0.035"-0.004" to 0.004"4 1/2"4 1/2"Not Rated2,910210WhiteFiredElectrical Insulating0%300,0008462K28000000
    0.040"-0.004" to 0.004"4 1/2"4 1/2"Not Rated2,910210WhiteFiredElectrical Insulating0%300,0008462K2300000
    0.060"-0.002" to 0.002"4 1/2"4 1/2"Not Rated3,100250WhiteFiredElectrical Insulating0%300,0008462K45000000

    Ceramic Fiber Insulation Sheets for Furnaces

    Image of Product. Front orientation. Insulation Sheets. Ceramic Fiber Insulation Sheets for Furnaces.
    The most common of our flexible high-temperature sheets, these are used to insulate furnaces. They also can be fabricated into gaskets. Insulation performs best at temperatures above 1,000° F.
    Without Binder—Sheets without binder don’t have a binder that can burn when installed, so they won’t produce a strong odor. They’re often used to vacuum heat treat furnaces. However, they’re weaker and more brittle than sheets with a binder.
    With Binder—Sheets with binder are stronger in structure, easier to cut, and more pliable than those without a binder. The binder will burn out at 350° and release gas with a strong odor, so only use them in applications where burnout is not an issue.
    Temperature
    Wd.
    Lg.,
    ft.
    Min.
    Max.,
    ° F
    Insulation
    R Value
    Heat Flow Rate
    @ Temp.
    Density,
    lb/ft³
    Flexibility
    Color
    Each
    Without Binder
     
    1/16" Thick
    6"100Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite93285K310000000
    12"50Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite93285K32000000
    24"25Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite93285K33000000
     
    With Binder
     
    1/16" Thick
    6"100-425° F2,3000.10.71 BTU/hr @ 800° F7.5FlexibleWhite93285K22000000
    12"50-425° F2,3000.10.71 BTU/hr @ 800° F7.5FlexibleWhite93285K24000000
    24"25-425° F2,3000.10.71 BTU/hr @ 800° F7.5FlexibleWhite93285K26000000
     

    Ultra-High-Temperature Ceramic Fiber Pipe Insulation Strips

    Image of Product. Front orientation. Pipe Insulation. Ultra-High-Temperature Ceramic Fiber Pipe Insulation Strips, Calcium Aluminum Silicate Ceramic Fiber.
    Image of Product. Front orientation. Pipe Insulation. Ultra-High-Temperature Ceramic Fiber Pipe Insulation Strips, Ceramic Alumina Fiber.

    Calcium Aluminum Silicate

    Ceramic Fiber

    Ceramic Alumina Fiber

    Withstands the highest temperatures of all our pipe insulation. Made of ceramic fiber, this insulation won't melt, sag, or degrade in extreme heat. It's often used in ovens, furnaces, steel mills, and other demanding environments.
    Calcium Aluminum Silicate Ceramic Fiber—Strong and durable, this insulation stays in place for many years without degrading.
    Ceramic Alumina Fiber—Handles higher heat and keeps the temperature of your line steadier than our other ceramic fiber insulation. It's ideal for your hottest applications, such as steam reformers and furnace piping.
    Adhesive Backing—Install insulation without having to hold it in place—simply position and secure it using band clamps or other components of the assembly. Apply while cool. Heat above 400° F starts to weaken the adhesive, but the insulation's temperature rating remains unaffected.
    Plain Backing
    Adhesive Backing
    Wd.
    Max. Temp.,
    ° F
    Insulation
    R Value
    Heat Flow Rate
    @ Temp.
    Density,
    lb/ft³
    Flexibility
    Lg.,
    ft.
    Each
    Lg.,
    ft.
    Each
    Calcium Aluminum Silicate Ceramic Fiber
     
    1/32" Thick
    1"1,5000.040.82 BTU/hr @ 800° F35Flexible————0254057K1000000
    1 1/2"1,5000.040.82 BTU/hr @ 800° F35Flexible————0254057K2100000
    2"1,5000.040.82 BTU/hr @ 800° F35Flexible————0254057K400000
    2 1/2"1,5000.040.82 BTU/hr @ 800° F35Flexible————0254057K2200000
    3"1,5000.040.82 BTU/hr @ 800° F35Flexible————0254057K700000
     
    Ceramic Alumina Fiber
     
    1/32" Thick
    1"2,3000.070.48 BTU/hr @ 800° F12Flexible5087575K81000000————0
    2"2,3000.070.48 BTU/hr @ 800° F12Flexible5087575K8200000————0
    2 1/2"2,3000.070.48 BTU/hr @ 800° F12Flexible5087575K3500000————0
    3"2,3000.070.48 BTU/hr @ 800° F12Flexible5087575K8300000————0
     

    Moldable Ceramic Insulation Sheets for Furnaces

    Wet these rigid sheets and they become formable. They can be molded multiple times until exposed to heat, which causes them to become rigid again. Insulation performs best at temperatures above 1,000° F.
    75 lb/ft³ Density
    Image of Product. Front orientation. Insulation Sheets. Moldable Ceramic Insulation Sheets for Furnaces.
    Wd.
    Lg.,
    ft.
    Insulation
    R Value
    Flexibility
    Temp. Range,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Each
    1/32" Thick
    23"20.1Rigid-120 to 2,7301.2 BTU/hr @ 1,200° FWhite93615K110000000
     

    Ultra-High-Temperature Easy-Machine Ceramic Alumina Sheets

    Image of Product. Front orientation. Ceramic. Ultra-High-Temperature Easy-Machine Ceramic Alumina Sheets.
    Commonly used in induction furnace components and hot glass handling, this ceramic alumina withstands higher temperatures than alumina bisque ceramic. The 99% alumina content makes it suitable for high-vacuum applications. It has excellent machinability. Material comes fired and is unaffected by water.
    Temp.
    3" × 3"
    6" × 6"
    12" × 12"
    Thk.
    Thk. Tolerance
    Color
    Min.
    Max.,
    ° F
    Fabrication
    Performance
    Dielectric Strength,
    V/mil
    Porosity
    Compressive
    Strength, psi
    Hardness
    Each
    Each
    Each
    1/32"-0.020" to 0.020"WhiteNot Rated3,000FiredEasy Machine, Ultra High Temperature7548%4,350Durometer 86D8978T7930000008978T79900000008978T8010000000
     

    Electrical Insulating Thermally-Conductive Aluminum Nitride Ceramic

    Image of Product. Front orientation. Ceramic. Electrical Insulating Thermally-Conductive Aluminum Nitride Ceramic.
    One of the few known materials that both draws heat away from hot spots and blocks electrical currents, aluminum nitride sheets are great for heat sinks and other electronic components. They also have one of the fastest rates of heat transfer, second only to high-performance metals like silver and copper. Aluminum nitride maintains its size and shape as it heats up and cools down, so it won't expand or contract. Braze or solder this material to metal—it won't corrode from molten metal. You can also use this material near lithium batteries and other chlorides without it corroding.
    Temp.
    4 1/2" × 4 1/2"
    Thk.
    Thk. Tolerance
    Color
    Min.
    Max.,
    ° F
    Fabrication
    Performance
    Dielectric Strength,
    V/mil
    Porosity
    Compressive
    Strength, psi
    Hardness
    Each
    0.025"-0.001" to 0.001"GrayNot Rated2,370SinteredElectrical Insulating, Thermally Conductive381Not Rated300,000Knoop 1170 HK 0.16167N1110000000
    0.040"-0.001" to 0.001"GrayNot Rated2,370SinteredElectrical Insulating, Thermally Conductive381Not Rated300,000Knoop 1170 HK 0.16167N112000000
    0.060"-0.001" to 0.001"GrayNot Rated2,370SinteredElectrical Insulating, Thermally Conductive381Not Rated300,000Knoop 1170 HK 0.16167N113000000
     
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