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3M™ Thermal Bonding Film 668

3M ID  AM000000969     
3M(TM) Thermal Bonding Film 668 roll standing, peeling back
3M(TM) Thermal Bonding Film 668 roll standing, peeling back
3M™ Thermal Bonding Film 688 is a flexible thermoplastic adhesive bonding film. It is ideal for applications such as bonding flex antenna and metal face plates to the chassis. Can be diecut for precise, repeatable bonding.
Features and Benefits
  • Slight surface tack for temporary holding
  • Excellent heat resistance
  • Great adhesion to polyamide substrates
  • Thermoplastic adhesive allows metal and plastic parts to be separated, for rework and ease of recycling at end of life
  • Low temperature bonding reduces part warping, enabling higher yield potential
  • High bond strength in seconds helps to reduce assembly time while providing excellent drop test performance
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    Product Attributes

    Adhesive Thickness4.0 mil
    Adhesive Thickness (metric)0.10 mm
    Adhesive TypeThermoplastic
    ApplicationBattery Bonding, Battery Door Attachment, Bezel Bonding, Case Assembly, Flex Bonding, Flex Stiffener Bonding, Low Surface Energy Bonding, Module Bonding to PET Card
    Application CategoryBonding
    Base MaterialPolyamide Thermoplastic (non-curing)
    Bond Cure Time2 to 5 seconds
    Bondline Temp (Celsius)121 to 135 degree C
    Bondline Temp (Fahrenheit)250 to 275 degree F
    Bond TypeReworkable
    Faceside Liner Thickness3.0 mil
    Faceside Liner Thickness (metric)0.08 mm
    Faceside Liner TypeRelease Coated Paper
    Film ColorTranslucent/Tan
    Maximum Width Available24 in
    Maximum Width Available (metric)600 mm
    Product FormRoll
    Product Series668
    SubstrateAluminum, FR-4, Plastics (PC, PMMA), Steel (Cold Rolled, Stainless)


    Data Sheet

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