Dow Sylgard 577 Primerless Silicone Adhesive Kit

Dow Sylgard 577 Primerless Silicone Adhesive Kit Datasheet
  • Description for Dow Sylgard 577 Primerless Silicone Adhesive Kit

    A Gray, flowable adhesive with high tensile strength and good flame resistance, MIL-PRF-23586F tested.<br/>

    *See Terms of Use Below

    Brand Sylgard
    Application Type Bond, Sealant, Gasket
    1 Part or 2 Part 2 Part
    Material Form Liquid, Silicone elastomer
    Substrate Aluminum
    Industry Connector
    Manufacturer Dow
    Chemistry Silicone elastomer, Silicone
    Cure Method Part A/Part B, Heat
    Cure Temperature (°C) 20 to 25, 125
    Cure Time (min) Rapid, 60
    Viscosity (cPs) 98,000, Flowable
    Color Gray
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Key Specifications Mil-Spec (United States Military Standard): MIL-PRF-23586F, UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: UL 94 V-0 flammability rating
  • Technical Data for Dow Sylgard 577 Primerless Silicone Adhesive Kit

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 2 Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Substrate
    • Industry
    • Chemistry
    • Application Method
      • Flow - Flowable
    • Cure Method
      • Heat
      • 2-Part Cure - Part A/Part B
    • Color
      • Gray
    • Key Specifications
      • Mil-Spec (United States Military Standard): PRF-23586F - MIL-PRF-23586F
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: V0 - UL 94 V-0 flammability rating
    • Brand
      • Sylgard
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25, 125
    Cure Time (min) Rapid, 60
    Viscosity (cPs) 98,000, Flowable
    Work / Pot Time (min) Long, 1,320 Test Method
    Mix Ratio 10:1 (by volume)
    Bond Strength
    General Bond Strength (psi) High
    Shear Strength (psi) 984 Test Method
    Tensile Strength (psi) 988
    Material 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 0.00065, <0.00040 Test Method
    Dielectric Strength (V/mil) Good, Durable, 500
    Dielectric Constant 2.83, 2.78 Test Method
    Volume Resistivity (O) 1.3E+15 (ohms/cm)
    Hardness
    Shore A Hardness 60
    Elongation (%) 224
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.290
    Coefficient of Thermal Expansion (CTE) 300 (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) 12
    Not Good For
    Don't Use With Plastic, rubber
  • Best Practices for Dow Sylgard 577 Primerless Silicone Adhesive Kit

    *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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Work / Pot Time Test Methods
Work / Pot Time Temperature
Long
1,320 min 25°C
Shear Strength Test Methods
Shear Strength Type Substrate
984 psi Lap shear strength Aluminum
Dielectric Constant Test Methods
Dielectric Constant Test Method
2.83 Dielectric Constant, 100 Hz
2.78 Dielectric Constant, 100 kHz
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00065 Dissipation Factor, 100 Hz
<0.00040 Dissipation Factor, 100 KHz