McMaster-Carr logo
    Filter by
    Flexibility
    Maximum Temperature
    Flammability Rating
    Industrial Info Compare
    Dielectric Strength
    Minimum Temperature
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    36 Products

    Electrically Insulating Hard Fiber

    Image of Product. Front orientation. Hard Fiber. Electrically Insulating Hard Fiber.
    Widely known as fishpaper and vulcanized fiber, these thin sheets offer better electrical insulation than standard hard fiber sheets. They are constructed from lightweight cotton fabric that's been chemically treated to make it hard and dense.
    6" Wide ×
    12" Long
    12" Wide ×
    12" Long
    24" Wide ×
    39" Long
    39" Wide ×
    48" Long
    39" Wide ×
    60" Long
    Thk.
    Thk. Tolerance
    Tensile Strength,
    psi
    Hardness
    Mil.
    Spec.
    Flammability
    Rating
    Color
    Max. Temp.,
    ° F
    Impact Strength,
    ft·lbf/in
    For Use
    Outdoors
    Each
    Each
    Each
    Each
    Each
    0.005"-0.001" to 0.001"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K101000008490K15000008490K250000008490K35000000———0
    0.01"-0.001" to 0.001"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K10200008490K1100008490K21000008490K31000008490K103000000
    0.015"-0.002" to 0.002"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K10400008490K1200008490K22000008490K32000008490K10500000
    0.02"-0.002" to 0.002"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K10600008490K37000008490K38000008490K3900000———0
    0.025"-0.003" to 0.003"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K107000008490K16000008490K26000008490K36000000———0
    0.03"-0.003" to 0.003"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K108000008490K51000008490K52000008490K5300000———0
    0.04"-0.004" to 0.004"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K109000008490K54000008490K55000000———0———0
    0.045"-0.005" to 0.005"Not RatedRockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No8490K111000008490K57000008490K58000000———0———0
    0.062"-0.007" to 0.007"10,000 to 21,000Rockwell R70 (Hard)MIL-I-695UL 94 HB
    		Gray2352.5No———08490K61000008490K620000008490K63000000———0

    Humidity-Resistant Paper Insulation Sheets

    Often used in high-humidity applications for its low moisture absorption, this flexible paper insulation is made of inorganic materials. It’s typically used in appliances and electrical devices. Insulation meets UL 94 V-0 and UL 94 5VA for flame resistance.
    93 lb/ft³ Density
    Image of Product. Front orientation. Insulation Sheets. Humidity-Resistant Paper Insulation Sheets.
    Wd.
    Lg.,
    ft.
    Insulation
    R Value
    Flexibility
    Temp. Range,
    ° F
    Heat Flow Rate
    @ Temp.
    Color
    Performance
    Flammability Rating
    Each
    0.015" Thick
    36"20.06Flexible0 to 2651.73 BTU/hr @ 355° FOff-WhiteFlame Resistant, Moisture Resistant, Humidity ResistantUL 94 V-0, UL 94 5VA
    		9583T22000000
     
    back to top