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    89 Products

    Abrasion-Resistant Rigid Calcium Silicate Thermal Insulation Sheets

    Made of high-strength calcium silicate, these durable sheets withstand high temperatures and are often used in power-generating applications.
    14.5 lb/ft³ Density
    Image of Product. Front orientation. Thermal Insulation Sheets. Abrasion-Resistant Rigid Calcium Silicate Thermal Insulation Sheets.
    Flame Resistant—Flame-resistant sheets meet ASTM E84 0/0 for flame and smoke.
    Wd.
    Lg.,
    ft.
    Insulation
    R Value
    Flexibility
    Performance
    Max. Temp.,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Flammability Rating
    Pkg.
    Qty.
    Pkg.
    1 1/2" Thick
    6"32.1RigidAbrasion Resistant, Flame Resistant1,2000.73 BTU/hr @ 800° FGoldASTM E84 0/0 for Flame and Smoke
    		20000000000000
    12"32.1RigidAbrasion Resistant, Flame Resistant1,2000.73 BTU/hr @ 800° FGoldASTM E84 0/0 for Flame and Smoke
    		2000000000000
     
    2" Thick
    6"32.7RigidAbrasion Resistant, Flame Resistant1,2000.73 BTU/hr @ 800° FGoldASTM E84 0/0 for Flame and Smoke
    		2000000000000
    12"32.7RigidAbrasion Resistant, Flame Resistant1,2000.73 BTU/hr @ 800° FGoldASTM E84 0/0 for Flame and Smoke
    		20000000000000
    18"32.7RigidAbrasion Resistant, Flame Resistant1,2000.73 BTU/hr @ 800° FGoldASTM E84 0/0 for Flame and Smoke
    		20000000000000
     
    40 lb/ft³ Density
    Image of Product. Front orientation. Thermal Insulation Sheets. Abrasion-Resistant Rigid Calcium Silicate Thermal Insulation Sheets.
    Sheets with a density of 40 lb/ft³ can be machined.
    Flame Resistant—Flame-resistant sheets meet ASTM E84 0/0 for flame and smoke.
    Wd.
    Lg.,
    ft.
    Insulation
    R Value
    Flexibility
    Performance
    Max. Temp.,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Flammability Rating
    Each
    1/2" Thick
    12"10.6RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
    24"40.6RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
    48"40.6RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
     
    3/4" Thick
    12"10.9RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		000000000000
    24"40.9RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
    48"40.9RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
     
    1" Thick
    12"11.3RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		000000000000
    24"41.3RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
    48"41.3RigidAbrasion Resistant, Flame Resistant1,7000.8 BTU/hr @ 800° FWhiteASTM E84 0/0 for Flame and Smoke
    		0000000000000
     
    55 lb/ft³ Density
    Image of Product. Front orientation. Thermal Insulation Sheets. Abrasion-Resistant Rigid Calcium Silicate Thermal Insulation Sheets.
    Sheets with a density of 55 lb/ft3 stand up to heavy compression.
    Wd.
    Lg.,
    ft.
    Insulation
    R Value
    Flexibility
    Performance
    Max. Temp.,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Each
    1/2" Thick
    12"10.5RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite00000000000000
    24"40.5RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite00000000000000
    48"40.5RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite00000000000000
     
    1" Thick
    12"11RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite0000000000000
    24"41RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite00000000000000
    48"41RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite0000000000000000
     
    1 1/2" Thick
    12"11.4RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite00000000000000
    24"41.4RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite00000000000000
    48"41.4RigidAbrasion Resistant1,7001.05 BTU/hr @ 800° FWhite0000000000000000
     

    Ceramic Fiber Thermal Insulation Sheets for Furnaces

    Image of Product. Front orientation. Thermal Insulation Sheets. Ceramic Fiber Thermal 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,
    ° F
    Wd.
    Lg.,
    ft.
    Min.
    Max.
    Insulation
    R Value
    Heat Flow Rate
    @ Temp.
    Density,
    lb/ft³
    Flexibility
    Color
    Flammability Rating
    Each
    Without Binder
     
    1/16" Thick
    6"100Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite—000000000000000
    12"50Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite—00000000000000
    24"25Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite—00000000000000
     
    1/8" Thick
    12"50Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite—00000000000000
    24"25Not Rated2,3000.10.43 BTU/hr @ 800° F9FlexibleWhite—00000000000000
     
    1/4" Thick
    24"20Not Rated2,1500.30.75 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		0000000000000
    24"20Not Rated2,1500.40.65 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		0000000000000
    48"20-4552,1500.30.78 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"20-4552,1500.40.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
     
    1/2" Thick
    24"50Not Rated2,1500.70.75 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    24"50Not Rated2,1500.80.65 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    48"50-4552,1500.50.96 BTU/hr @ 800° F4FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"50-4552,1500.60.78 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"50-4552,1500.70.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
     
    1" Thick
    24"25-4552,4001.30.78 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    24"25-4552,4001.40.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    24"25Not Rated2,15011 BTU/hr @ 800° F4FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		0000000000000
    24"25Not Rated2,1501.30.75 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    24"25Not Rated2,1501.50.65 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    48"25-4552,15010.96 BTU/hr @ 800° F4FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"25-4552,1501.30.78 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"25-4552,1501.40.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"25-4552,4001.40.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
     
    1 1/2" Thick
    24"15-4552,4002.10.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    24"15Not Rated2,1501.51 BTU/hr @ 800° F4FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		0000000000000
    24"15Not Rated2,15020.75 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		0000000000000
    24"15Not Rated2,1502.30.65 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    48"15-4552,1501.90.78 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"15-4552,1502.10.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
     
    2" Thick
    24"12 1/2-4552,4002.90.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    24"12 1/2Not Rated2,15021 BTU/hr @ 800° F4FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		0000000000000
    24"12 1/2Not Rated2,1502.70.75 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    24"12 1/2Not Rated2,1503.10.65 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		00000000000000
    48"12 1/2-4552,1502.60.78 BTU/hr @ 800° F6FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"12 1/2-4552,1502.90.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
    48"12 1/2-4552,4002.90.7 BTU/hr @ 800° F8FlexibleWhiteUL 723 0/0 for Flame and Smoke
    		000000000000000
     
    With Binder
     
    1/16" Thick
    6"100-4252,3000.10.71 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
    12"50-4252,3000.10.71 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
    24"25-4252,3000.10.71 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
     
    1/8" Thick
    6"20-4252,3000.20.71 BTU/hr @ 800° F7.5FlexibleWhite—0000000000000
    6"100-4252,3000.20.71 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
    12"10-4252,3000.20.71 BTU/hr @ 800° F7.5FlexibleWhite—0000000000000
    12"50-4252,3000.20.71 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
    24"5-4252,3000.20.71 BTU/hr @ 800° F7.5FlexibleWhite—0000000000000
    24"25-4252,3000.20.71 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
     
    1/4" Thick
    6"100-4252,3000.40.57 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
    12"50-4252,3000.40.57 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
    24"25-4252,3000.40.57 BTU/hr @ 800° F7.5FlexibleWhite—00000000000000
     

    Shock-Resistant Ceramic Fiber Thermal Insulation Sheets for Furnaces

    Designed for fluctuating, high-temperature applications, these semi-rigid sheets are typically used in furnaces and fire protection applications. They experience very little shrinkage at high temperatures, but the brittle material can be somewhat difficult to work with. Insulation is flame resistant, meeting ASTM E84 0/0 for flame and smoke. It performs best at temperatures above 1,000° F.
    18 lb/ft³ Density
    Image of Product. Front orientation. Thermal Insulation Sheets. Shock-Resistant Ceramic Fiber Thermal Insulation Sheets for Furnaces.
    With Binder—Sheet with binder is easier to handle at room temperature than sheet without a binder, but it contains a small amount of organic material that burns off and releases smoke at around 400° F.
    Without Binder—Sheet without binder won't produce smoke when heated.
    With Binder
    Without Binder
    Wd.
    Lg.,
    ft.
    Insulation
    R Value
    Flexibility
    Temp. Range,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Performance
    Flammability Rating
    Each
    Each
    1" Thick
    24"31.2Rigid0 to 2,3000.85 BTU/hr @ 1,000° FOff-WhiteFlame Resistant, Shock ResistantASTM E84 0/0 for Flame and Smoke
    		0000000000000000000000000000
     

    Rigid Silica High-Efficiency Thermal Insulation Sheets for Furnaces

    Image of Product. Front orientation. Thermal Insulation Sheets. Rigid Silica High-Efficiency Thermal Insulation Sheets for Furnaces.
    Typically used in ovens and furnaces, these are the most efficient of our rigid high-temperature insulation sheets. Please note that they require special care when installing since the crumbly material is difficult to work with and will crack easily. Sheets lose strength over time and are intended to be installed behind another facing or insulation material. They resist damage from fire and moisture. Insulation performs best at temperatures above 1,000° F.
    Thk.
    Wd.
    Lg.
    Max. Temp.,
    ° F
    Insulation
    R Value
    Heat Flow Rate @ Temp.
    Density,
    lb/ft³
    Color
    Flexibility
    Each
    3/16"19 1/2"23 1/2"1,7401.20.31 BTU/hr @ 1,470° F16WhiteRigid0000000000000
    1/4"19 1/2"23 1/2"1,7401.20.31 BTU/hr @ 1,470° F16WhiteRigid000000000000
    3/8"25 1/2"39"1,832Not Rated0.033 BTU/hr @ 1,470° F17GrayRigid0000000000000
    3/4"25 1/2"39"1,832Not Rated0.033 BTU/hr @ 1,470° F17GrayRigid0000000000000
    1"25 1/2"39"1,832Not Rated0.033 BTU/hr @ 1,470° F17GrayRigid0000000000000

    Acid-Resistant Silica Thermal Insulation Sheets for Furnaces

    Commonly used in furnaces and engine compartments, these flexible silica fiber sheets resist corrosive acids. They perform best at temperatures above 1,000° F.
    10 lb/ft³ Density
    Image of Product. Front orientation. Thermal Insulation Sheets. Acid-Resistant Silica Thermal Insulation Sheets for Furnaces.
    Wd.
    Insulation
    R Value
    Flexibility
    Temp. Range,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Performance
    Choose a Length, ft.
    Per
    Ft.
    1/4" Thick
    36"0.3Flexible0 to 2,0000.78 BTU/hr @ 800° FWhiteAcid Resistant
    2
    ,
    10
    ,
    25
    		00000000000000
     
    1/2" Thick
    36"0.6Flexible0 to 2,0000.78 BTU/hr @ 800° FWhiteAcid Resistant
    2
    ,
    10
    ,
    25
    		0000000000000
     
    1" Thick
    36"1.3Flexible0 to 2,0000.78 BTU/hr @ 800° FWhiteAcid Resistant
    2
    ,
    10
    ,
    25
    		0000000000000
     

    Moldable Ceramic Thermal 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. Thermal Insulation Sheets. Moldable Ceramic Thermal 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° FWhite000000000000000
     
    1/16" Thick
    23"20.1Rigid-120 to 2,7301.2 BTU/hr @ 1,200° FWhite00000000000000
     
    1/8" Thick
    23"20.1Rigid-120 to 2,7301.2 BTU/hr @ 1,200° FWhite00000000000000
     
    1/4" Thick
    23"20.2Rigid-120 to 2,7301.2 BTU/hr @ 1,200° FWhite00000000000000
     

    Ultra-Thin Rigid Millboard Thermal Insulation Sheets for Furnaces

    Thinner than most rigid insulation for furnaces and other high-heat applications, these millboard sheets are also used for gasket fabrication. Insulation performs best at temperatures above 1,000° F.
    2,000° F Maximum Temperature
    Image of Product. Front orientation. Thermal Insulation Sheets. Ultra-Thin Rigid Millboard Thermal Insulation Sheets for Furnaces.
    Thk.
    Wd.
    Lg.
    Insulation
    R Value
    Flexibility
    Heat Flow Rate
    @ Temp.
    Density,
    lb/ft³
    Color
    Each
    1/16"55"55"0.1Rigid0.73 BTU/hr @ 800° F37.5White0000000000000
    1/8"55"55"0.2Rigid0.73 BTU/hr @ 800° F37.5White0000000000000
    3/16"55"55"0.3Rigid0.73 BTU/hr @ 800° F37.5White0000000000000
    1/4"55"55"0.3Rigid0.73 BTU/hr @ 800° F37.5White0000000000000
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