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    19 Products

    Ultra-Chemical-Resistant PTFE Backup Rings

    Image of Product. Front orientation. Backup Rings. Ultra-Chemical-Resistant PTFE Backup Rings.
    Image of Attribute. Front orientation. CrossSection view. Contains Annotated. Ultra-Chemical-Resistant PTFE Backup Rings.
    These PTFE backup rings resist harsh chemicals, such as acetone, fluorinated solvents, methanol, and many acids. Use them to extend the life of your O-rings and improve their performance in high-pressure applications.
    For Dash
    No.
    Thk.
    ID
    OD
    Hardness
    Temp. Range,
    ° F
    Color
    Pkg.
    Qty.
    Pkg.
    0.183" Wide
    325
    0.07"1.475"1.841"Durometer 55D (Hard)-300 to 500White1000000000000000
    326
    0.07"1.600"1.966"Durometer 55D (Hard)-300 to 500White100000000000000
    328
    0.07"1.888"2.254"Durometer 55D (Hard)-300 to 500White10000000000000
    329
    0.07"2.013"2.379"Durometer 55D (Hard)-300 to 500White10000000000000
    330
    0.07"2.138"2.504"Durometer 55D (Hard)-300 to 500White10000000000000
    333
    0.07"2.475"2.841"Durometer 55D (Hard)-300 to 500White100000000000000
    334
    0.07"2.600"2.966"Durometer 55D (Hard)-300 to 500White50000000000000
    337
    0.07"2.975"3.341"Durometer 55D (Hard)-300 to 500White50000000000000
    338
    0.07"3.100"3.466"Durometer 55D (Hard)-300 to 500White50000000000000
    339
    0.07"3.225"3.591"Durometer 55D (Hard)-300 to 500White50000000000000
    340
    0.07"3.350"3.716"Durometer 55D (Hard)-300 to 500White50000000000000
    341
    0.07"3.475"3.841"Durometer 55D (Hard)-300 to 500White50000000000000
    342
    0.07"3.600"3.966"Durometer 55D (Hard)-300 to 500White5000000000000
    344
    0.07"3.850"4.216"Durometer 55D (Hard)-300 to 500White50000000000000
    345
    0.07"3.975"4.341"Durometer 55D (Hard)-300 to 500White50000000000000
    346
    0.07"4.100"4.466"Durometer 55D (Hard)-300 to 500White50000000000000
    349
    0.07"4.475"4.841"Durometer 55D (Hard)-300 to 500White50000000000000
    358
    0.07"5.600"5.966"Durometer 55D (Hard)-300 to 500White10000000000000
     

    EMI/RFI Shielding Gaskets

    These gaskets absorb electromagnetic interference (EMI) and radio frequency interference (RFI) to prevent inaccurate signals, flickering displays, and other electrical problems. They compress to fill gaps and complete a grounding path around doors and access panels.
    Half Round
    Image of Product. Front orientation. EMI/RFI Shielding Gaskets. Half Round.
    Half-round gaskets work well in grooves. Use a gasket slightly thicker than the depth of the groove; it will compress to fill the gap.
    Polyurethane Foam—Polyurethane foam gaskets are covered with either a conductive nickel/copper braided fabric or conductive aluminum foil. A nonconductive adhesive holds them in place. To protect sensitive equipment, they block at least twice as much interference as urethane foam gaskets. Cut these gaskets to length with scissors.
    Adhesive Backing—Adhesive-back gaskets stick to flat surfaces.
    UL 94 V-0—Gaskets that meet UL 94 V-0 self-extinguish within 10 seconds if they catch fire and won’t spread the fire by dripping.
    Thk.
    Wd.
    Lg.
    Interference Reduction
    @ Freq.
    Backing
    Type
    Temp. Range,
    ° F
    Color
    For Use
    Outdoors
    Flammability
    Rating
    Each
    Polyurethane Foam
    0.07"1/8"48"80 dB @ 1 GHzAdhesive-40 to 158BeigeNoUL 94 V-0
    0000000000000
     
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