• Description for Dow 3-1598 HP

    Noncorrosive; self-priming; rapid heat cure; high strength; flowable; low void; contains UV indicator for automated inspection.

    *See Terms of Use Below

    Application Type Bond, Seal, Gasket
    1 Part or 2 Part 1-Part
    Material Form Liquid, Silicone elastomer
    Substrate ABS
    Industry Connector, Lighting, Smart Meters, Engine control, E-Mobility Solutions, Smart Home Devices
    Manufacturer Dow
    Chemistry Silicone elastomer
    Cure Method Heat
    Cure Temperature (°C) >100, 20 to 25, 100, 125, 150
    Cure Time (min) 180, 30, 15
    Viscosity (cPs) 86,000, Flowable
    Color Black
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Volume Resistivity (O) 4.5E+14 (ohms/cm)
  • Technical Data for Dow 3-1598 HP

    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Substrate
    • Industry
      • Lighting
      • Other Transportation - Transmission
      • Smart Meters
      • Smart Home Devices
      • E-Mobility Solutions
      • Connectors - Connector
      • Industrial - Housings, Lids
      • Engine - Engine control
      • Construction - Baseplates
    • Chemistry
    • Cure Method
      • Heat
    • Color
      • Black
    Cure Specs
    Cure Temperature (°C) >100, 20 to 25, 100, 125, 150
    Cure Time (min) 180, 30, 15
    Viscosity (cPs) 86,000, Flowable
    Work / Pot Time (min) Long Test Method
    Bond Strength
    General Bond Strength (psi) High
    Shear Strength (psi) 820 Test Method
    Tensile Strength (psi) 780
    Material Resistance
    Environmental Resistance Environmental resistance
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Moisture/Humidity Resistance Moisture/humidity resistance
    Dissipation Factor 0.00600, 0.00030 Test Method
    Dielectric Strength (V/mil) Good, Durable, 500
    Dielectric Constant 3.09, 3.03 Test Method
    Volume Resistivity (O) 4.5E+14 (ohms/cm)
    Shore A Hardness 57
    Elongation (%) 3
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.310
    Coefficient of Thermal Expansion (CTE) 275 (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 25°C (77°F). 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 Type from date of manufacture
    Shelf Life (mon) 6
    Not Good For
    Don't Use With Plastic, rubber
  • Best Practices for Dow 3-1598 HP

    *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.

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    *See Terms of Use Below

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Which answer best describes a project you are currently working on?
Work / Pot Time Test Methods
Work / Pot Time Temperature
Shear Strength Test Methods
Shear Strength Type
820 psi Lap shear strength
Dielectric Constant Test Methods
Dielectric Constant Test Method
3.09 Dielectric constant, 100 Hz
3.03 Dielectric constant, 100 KHz
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00600 Dissipation factor, 100 Hz
0.00030 Dissipation factor, 100 KHz