3M 8805 Datasheet 3M 8805

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  • Description for 3M 8805

    Designed to provide a preferential heat-transfer path between heat-generating components and heat sinks or other cooling devices (e.g., fans, heat spreaders or heat pipes).

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 1-Part
    Material Form Tape
    Substrate Untreated aluminum, Ceramic
    Industry Preferential heat-transfer path between heat-generating components, Powertrain, Heat sinks, power transformer bonding to heat sinks, CPU, Human Machine Interface, flex circuit, Other cooling devices (e.g., fans, heat spreaders or heat pipes)
    Manufacturer 3M
    Chemistry Filled Acrylic Polymer, Halogen free
    Cure Method Pressure Sensitive
    Color White
    Other Resistance Torque Resistance
    Volume Resistivity (O) 5.2e11(Ohm-cm)
    Key Specifications UL recognized

  • Technical Data for 3M 8805

    *See Terms of Use Below

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Tape
    • Substrate
      • Ceramic
      • Aluminum - Untreated aluminum
      • Other - Rigid to rigid, Flexible to rigid, Flexible to flexible, Improved surface wet-out for rough surface/LSE substrates
    • Industry
      • Storage & Graphics - CPU
      • Powertrain
      • Human Machine Interface
      • Electronics - flex circuit, Other cooling devices (e.g., fans, heat spreaders or heat pipes), Preferential heat-transfer path between heat-generating components
      • Heat sink - Heat sinks
      • Transformers - power transformer bonding to heat sinks
      • Industrial - good thermal transfer
      • Other - Ideal for thin bonding applications, Rigid to rigid bonding, Flexible to rigid, Flexible to flexible bonding
    • Chemistry
      • Halogen-free - Halogen free
      • Acrylic - Filled Acrylic Polymer
    • Application Method
      • Roll - Rubber nip rollers, heated steel rollers
      • Contact
      • Other - squeegee, finger pressure to help
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • White
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - UL recognized
    Specifications
    Bond Strength
    Peel Strength (piw) 35 (oz/in), 51 (oz/in), 53 (oz/in), 56 (oz/in.) Test Method
    Shear Strength (psi) 1000 (g), 500 (g) Test Method
    Material Resistance
    Other Resistance Torque Resistance
    Vibration Resistance/Shock Resistance Excellent shock performance
    Conductivity
    Filler Ceramic
    Dielectric Strength (V/mil) Good, 688 Test Method
    Dielectric Constant 93.50 Test Method
    Thermal Conductivity (W/m°K) Good, 0.60 Test Method
    Surface Resistivity (O) 1.6e11 (ohms-cm) Test Method
    Volume Resistivity (O) 5.2e11(Ohm-cm) Test Method
    Other Properties
    Specific Gravity 1.07 (g/cc)
    Business Information
    Shelf Life Details The shelf life of 3M™ Thermally Conductive Adhesive Transfer Tapes 8805, 8810, 8815 and 8820 is 24 months from the date of manufacture when stored in the original packaging materials and stored at 22°C (72°F) and 50% relative humidity.
    Shelf Life Temperature (°F) 72
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 24

  • Best Practices for 3M 8805

    *See Terms of Use Below

    1. Surface Preparation

      Substrate surfaces should be clean and dry prior to tape application. Isopropyl alcohol (isopropanol) applied with a lint-free wipe or swab should be adequate for removing surface contamination such as dust or finger prints. Do not use “denatured alcohol” or glass cleaners which often contain oily components. Allow the surface to dry for several minutes before applying the tape. More aggressive solvents (such as acetone, methyl ethyl ketone (MEK) or toluene) may be required to remove heavier contamination (grease, machine oils, solder flux, etc.) but should be followed by a final isopropanol wipe as described above.

      Note: Be sure to read and follow the manufacturers’ precautions and directions when using primers and solvents.

    2. Application

      Apply the tape to one substrate at a modest angle with the use of a squeegee, rubber roller or finger pressure to help reduce the potential for air entrapment under the tape during its application. The liner can be removed after positioning the tape onto the first substrate.

      Assemble the part by applying compression to the substrates to ensure a good wetting of the substrate surfaces with the tape. Proper application of pressure (amount of pressure, time applied, temperature applied) will depend upon design of the parts. Rigid substrates are more difficult to bond without air entrapment as most rigid parts are not flat. Use of a thicker tape may result in increased wetting of rigid substrates. Flexible substrates can be bonded to rigid or flexible parts with much less concern about air entrapment because one of the flexible substrates can conform to the other substrate.

      These tapes are tacky pressure sensitive adhesives loaded with thermally conductive ceramic fillers that do not require a heat cure cycle to form an excellent bond to many substrates. Only pressure is needed to form an excellent bond and thermal interface.

    3. Removal

      Rework requires separation of the two substrates. Separation can be accomplished by any practical means: prying, torquing or peeling. The tape will be destroyed upon separation and must be replaced. The surfaces should be recleaned according to the recommendations in this data page.

      Heating up the substrates can reduce the adhesion level and make removal easier.

      Part separation can be aided by immersion in warm water. This should eventually reduce the adhesion and make prying, torquing or peeling apart the substrates easier.

  • Comparable Materials for 3M 8805

    *See Terms of Use Below

    Spec Engine® Results

    • Dymax
      Ultra Light-Weld 9671(Dymax)

      A light-curable LCP adhesive, designed for rapid bonding of liquid crystal polymer (LCP), contain no nonreactive solvents.

    • 3M
      8810(3M)

      Designed to provide a preferential heat-transfer path between heat-generating components and heat sinks or other cooling devices (e.g., fans, heat spreaders or heat pipes).

    • Delo
      Dualbond OC4911(Delo)

      One-component, Solvent-free, UV/light, humidity-curing acrylate adhesive and low visocity.

    • Compare All
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Peel Strength Test Methods
Peel Strength Type Substrate Test Time Test Temperature Test Method
35 (oz/in) 90° Peel Strength Untreated aluminum 15 min 20 to 25°C Dwell, 3M TM 1 mil PET Backing
51 (oz/in) 90° Peel Strength Untreated aluminum 15 min 65°C Dwell, 3M TM 1 mil PET Backing
53 (oz/in) 90° Peel Strength Untreated aluminum 4,320 min 20 to 25°C Dwell, 3M TM 1 mil PET Backing
56 (oz/in.) 90° Peel Strength Untreated aluminum 4,320 min 65°C Dwell, 3M TM 1 mil PET Backing
Shear Strength Test Methods
Shear Strength Type Test Temperature Test Method
1000 (g) Static shear strength 25°C 3M TM: SS & PET Hold weight 1 week, holding 1000g @ Room Temp using 1 in2
500 (g) Static shear strength 70°C 3M TM: SS & PET Hold weight 1 week, holding 500g @ Room Temp using 1 in2
Dielectric Constant Test Methods
Dielectric Constant Test Method
93.50 ASTM D-150, 3 MHz
Dielectric Strength Test Methods
Dielectric Strength Test Method
Good
688 V/mil ASTM D-149
Surface Resistivity Test Methods
Surface Resistivity Test Method
1.6e11 (ohms-cm) ASTM D-2577
Thermal Conductivity Test Methods
Thermal Conductivity Test Method
Good
0.60 W/m°K ASTM C-177
Volume Resistivity Test Methods
Volume Resistivity Test Method
5.2e11(Ohm-cm) ASTM D-2577