Dow 3165 Fast Tack RTV Adhesive/Sealant

Dow 3165 Fast Tack RTV Adhesive/Sealant Datasheet
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  • Description for Dow 3165 Fast Tack RTV Adhesive/Sealant

    Fast tack-free time; noncorrosive; good green strength; good room-temperature adhesion to most substrates; non-flow.

    *See Terms of Use Below

    Brand Dowsil
    Application Type Bond, Seal, Gaskets
    1 Part or 2 Part 1 Part
    Material Form Liquid, Silicone elastomer
    Substrate Ceramics, Glass, Reactive metals, Plastics, Aluminum, Resins
    Industry Circuit boards, Light Emitting Diodes (LEDs), E-Mobility Solutions, Smart Meters, CRT module, Electrical leads, Electronic equipment, Electronics, LCD module, Modules, PDP module, Power supplies, PWBs, Staking components
    Manufacturer Dow
    Chemistry Silicone elastomer
    Cure Method Moisture, RTV
    Cure Temperature (°C) Faster or lower, 20 to 25, 20 to 25
    Viscosity (cPs) Non-flow
    Color Gray
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Key Specifications UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: UL 94 V-0

  • Technical Data for Dow 3165 Fast Tack RTV Adhesive/Sealant

    *See Terms of Use Below

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Substrate
    • Industry
      • LED (Light-Emitting Diodes) - Light Emitting Diodes (LEDs)
      • E-Mobility Solutions
      • Electronics - Circuit boards, CRT module, Electrical leads, Electronic equipment, LCD module, Modules, PDP module, Power supplies, PWBs, Staking components
      • Smart Meters
      • Power Supplies
      • Industrial - Housings, Yoke
      • Appliances
    • Chemistry
    • Application Method
      • Dispenser - Automated or manual needle dispense systems
    • Cure Method
      • Moisture
      • RTV (Room Temperature Vulcanization) - RTV
    • Color
      • Gray
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: V0 - UL 94 V-0
    • Brand
      • Dowsil
    Specifications
    Cure Specs
    Cure Temperature (°C) Faster or lower, 20 to 25, 20 to 25
    Cure Time (min)
    Viscosity (cPs) Non-flow
    Tack Free Time (min) Fast Test Method
    Bond Strength
    Shear Strength (psi) 200 Test Method
    Green Strength (psi) Good
    Tensile Strength (psi) 125
    Material Resistance
    Flame Resistance Good flame resistance
    Environmental Resistance Environmental resistance
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Moisture/Humidity Resistance Moisture/humidity resistance
    Conductivity
    Dissipation Factor 0.00300, <0.00020 Test Method
    Dielectric Strength (V/mil) Good, Durable
    Dielectric Constant 2.22, 2.38 Test Method
    Volume Resistivity (O) 2.4E+15 (ohms/cm)
    Hardness
    Shore A Hardness 35
    Elongation (%) 185
    Shore OO Hardness 83
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.350
    Coefficient of Thermal Expansion (CTE) 250 (Linear (micron/m °C or ppm ))
    Business Information
    Shelf Life Details Shelf life is indicated by the “Use Before” date found on the product label.For best results, Dow Corning RTV adhesives should be stored at or below the storage temperature listed on the product label. Special precautions must be taken to prevent moisture from contacting these materials. Containers should be kept tightly closed with head or air space minimized. Partially filled containers should be purged with dry air or other gases, such as nitrogen.
    Shelf Life Temperature (°F) 77
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 12
    Not Good For
    Don't Use With Highly plasticized plastic, Highly plasticized rubber

  • Best Practices for Dow 3165 Fast Tack RTV Adhesive/Sealant

    *See Terms of Use Below

    1. Surface Preparation

      All surfaces should be thoroughly cleaned and/or degreased with Dow Corning® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK) or other suitable solvent. Solvents such as acetone or isopropyl alcohol (IPA) do not tend to remove oils well, and any oils remaining on the surface may interfere with adhesion. Light surface abrasion is recommended whenever possible, because it promotes good cleaning and increases the surface area for bonding. A final surface wipe with acetone or IPA is also useful. Some cleaning techniques may provide better results than others

      users should determine the best techniques for their particular applications.

    2. Mixing

      Upon standing, some filler may settle to the bottom of the liquid containers after several weeks. To ensure a uniform product mix, the material in each container should be thoroughly mixed prior to use. Two-part materials should be mixed in the proper ratio (1:1 or 10:1) either by weight or volume. The presence of light colored streaks or marbling indicates inadequate mixing.

    3. Deairing/Degassing

      Automated airless dispense equipment can be used to reduce or avoid the need to de-air. If de-airing is required to reduce voids in the cured elastomer, consider a vacuum de-air schedule of >28 inches Hg for 10 minutes or until bubbling subsides.

  • Comparable Materials for Dow 3165 Fast Tack RTV Adhesive/Sealant

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Tack Free Time Test Methods
Tack Free Time Tack Free Temperature
Fast
Shear Strength Test Methods
Shear Strength Type Substrate
200 psi Lap shear strength Aluminum
Dielectric Constant Test Methods
Dielectric Constant Test Method
2.22 Dielectric constant, 100 Hz
2.38 Dielectric constant, 100 KHz
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00300 Dissipation factor, 100 Hz
<0.00020 Dissipation factor, 100 KHz
;