Dow Dowsil HC 2000 Conformal Coating

Dow Dowsil HC 2000 Conformal Coating Datasheet
  • Description for Dow Dowsil HC 2000 Conformal Coating

    Fast tack-free, non-corrosive, room-temperature-vulcanizing (RTV) solventless silicone conformal coating; high viscosity; controlled volatility.

    *See Terms of Use Below

    Brand Dowsil
    Application Type Conformal Coating
    1 Part or 2 Part 1 Part
    Material Form Liquid, Silicone elastomer
    Industry HDD, Sensors, Connectors, Smart Meters, E-Mobility Solutions, Smart Home Devices, Electronic components, Flexible circuit boards, Relays, Rigid circuit boards, Sensitive components , CD, DVD, High tolerance devices
    Manufacturer Dow
    Chemistry Silicone elastomer, Solvent-free
    Cure Method RTV, Atmospheric moisture, Mild Heat
    Cure Temperature (°C) 20 to 25 RT
    Cure Time (min) 90
    Viscosity (cPs) 150, Flowable
    Color Translucent
    Ozone Resistance Ozone resistance
    Chemical Resistance Good
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Elastomeric Elastomeric
    Key Specifications Underwriters Laboratory (UL) 746E recognition is based on thickness and substrate requirements
  • Technical Data for Dow Dowsil HC 2000 Conformal Coating

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Industry
      • E-Mobility Solutions
      • Electronics - Electronic components, Flexible circuit boards, Relays, Rigid circuit boards, CD, DVD, HDD, Sensitive components , High tolerance devices
      • Sensors
      • Connectors
      • Smart Meters
      • Smart Home Devices
    • Chemistry
    • Application Method
      • Dispenser - Robotic dispensing, Select coating
      • Brush
      • Spray
      • Flow
      • Dip - Dip coated with special precautions
      • Other - Some automated pattern coating
    • Cure Method
      • Moisture / Condensation Cure - Atmospheric moisture
      • Heat - Mild Heat
      • RTV (Room Temperature Vulcanization) - RTV
    • Color
      • Translucent
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - Underwriters Laboratory (UL) 746E recognition is based on thickness and substrate requirements
    • Brand
      • Dowsil
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25 RT Test Method
    Cure Time (min) 90 Test Method
    Viscosity (cPs) 150, Flowable
    Tack Free Time (min) Fast, 18 Test Method
    Bond Strength
    General Bond Strength (psi) Good
    Material Resistance
    Ozone Resistance Ozone resistance
    Chemical Resistance Good
    UV Resistance UV resistance
    Environmental Resistance Environmental resistance
    High Temperature Resistance (°C) 200 Test Method
    Low Temperature Resistance (°C) -45, -55 Test Method
    Moisture/Humidity Resistance Resist humidity
    Conductivity
    Dissipation Factor 0.00500 Test Method
    Dielectric Strength (V/mil) 850 Test Method
    Dielectric Constant 2.70 Test Method
    Volume Resistivity (O) 1.0 E17 (ohms/cm) Test Method
    Hardness
    Shore A Hardness 25
    Elastomeric Elastomeric
    Other Properties
    Specific Gravity 1.010 Test Method
    Business Information
    Shelf Life Details Special precautions must be taken to prevent moisture from contacting Dow Corning RTV Conformal Coatings. Containers should be kept tightly closed and head or air space minimized. Partially filled containers should be purged with dry air or other gases, such as nitrogen. Shelf life is indicated by the “Use Before” date found on the product label.
    Shelf Life Temperature (°F) 77
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 12
  • Best Practices for Dow Dowsil HC 2000 Conformal Coating

    *See Terms of Use Below

    1. Curing

      Time to cure is dependent on several variables including the method of application, film thickness, temperature and humidity. Tack-free time in the data table gives an indication of typical times until surface is dry enough to handle. Cure time for full cure are indications of time needed to develop full physical properties such as durometer, tensile strength or adhesion. These times, including full cure time, can be significantly improved by introducing mild heat of 60°C or less.

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    *See Terms of Use Below

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
20 to 25°C RT 60.3 mm thickness, 20°C, 55% RH.
Cure Time Test Methods
Cure Time Test Method
90 min 60.3 mm thickness, 20°C, 55% RH.
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature
Fast 20 to 25°C RT
18 min 25°C
High Temperature Resistance Test Methods
High Temperature Resistance Test Method
200°C Operational over a temperature
Low Temperature Resistance Test Methods
Low Temperature Resistance Test Method
-45°C Operational over a temperature
-55°C Thermal cycling
Dielectric Constant Test Methods
Dielectric Constant Test Method
2.70 1MHz (JIS K 6249)
Dielectric Strength Test Methods
Dielectric Strength Test Method
850 V/mil JIS K 6249
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00500 1MHZ (JIS K 6249)
Volume Resistivity Test Methods
Volume Resistivity Test Method
1.0 E17 (ohms/cm) JIS K 6249
Specific Gravity Test Methods
Specific Gravity Test Method
1.010 Cured