Dow Dowsil HC 1000 Gray Conformal Coating

Dow Dowsil HC 1000 Gray Conformal Coating Datasheet
  • Description for Dow Dowsil HC 1000 Gray Conformal Coating

    One part, gray, fast tack free solventless conformal coating with controlled volatility, high viscosity and good flame resistance, Controlled volatility, High viscosity, Cures to soft, low stress elastomer

    *See Terms of Use Below

    Brand Dowsil
    Application Type Conformal Coating
    1 Part or 2 Part 1 Part
    Material Form Liquid
    Industry Connectors, Sensors, PCB system assemblies, E-Mobility Solutions, Smart Meters, Smart Home Devices, Electronic components, PCB system appliances , Flexible circuit boards, Printed circuits substrates, Relays, Rigid circuit boards, Printed wiring board assemblies, Most delicate components, Interconnections
    Manufacturer Dow
    Chemistry Solventless, Polydimethylsiloxane
    Application Method Flow: Flow coating
    Cure Method Atmospheric moisture , RTV, Room Temperature cure, Mild heat
    Cure Temperature (°C) 20 to 25 Room Temperature
    Cure Time (min) 30
    Viscosity (cPs) High, 12,000, Controlled volatility
    Color Gray, Translucent
    Ozone Resistance Ozone resistance
    Chemical Resistance Good
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Stress Relief Low stress
    Elastomeric Elastomer
    Key Specifications 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 Dowsil HC 1000 Gray Conformal Coating

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Liquid
    • Substrate
      • Other - Other substrates
    • Industry
      • E-Mobility Solutions
      • Electronics - Electronic components, Flexible circuit boards, Relays, Rigid circuit boards, Printed wiring board assemblies, Most delicate components, Interconnections
      • Connectors
      • Sensors
      • Printed Circuit Board (PCB) - PCB system appliances , PCB system assemblies, Printed circuits substrates
      • Smart Meters
      • Smart Home Devices
      • Appliances
    • Chemistry
    • Application Method
      • Dispenser - Robotic dispensing, Syringe dispensed, Select coating
      • Brush
      • Spray
      • Flow: Flow Coat - Flow coating
      • Dip
    • Cure Method
      • Room Temperature / Air Dry - Room Temperature cure
      • Moisture / Condensation Cure - Atmospheric moisture
      • Heat - Mild heat
      • RTV (Room Temperature Vulcanization) - RTV
    • Color
      • Translucent
      • Gray
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: V0 - UL 94 V-0 flammability rating
    • Brand
      • Dowsil
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25 Room Temperature Test Method
    Cure Time (min) 30 Test Method
    Viscosity (cPs) High, 12,000, Controlled volatility
    Tack Free Time (min) Fast, 11 Test Method
    Work / Pot Time (min) >86,400 Test Method
    Bond Strength
    General Bond Strength (psi) Good adhesion
    Material Resistance
    Ozone Resistance Ozone resistance
    Flame Resistance Good
    Chemical Resistance Good
    UV Resistance UV resistance
    Environmental Resistance Protection from harsh operating environments
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Moisture/Humidity Resistance Protection from moisture
    Vibration Resistance/Shock Resistance Protection from vibration
    Conductivity
    Dissipation Factor 0.00300 Test Method
    Dielectric Strength (V/mil) Dielectric insulation, 525 Test Method
    Dielectric Constant 3.20 Test Method
    Volume Resistivity (O) 2.0 E15 (ohm-cm) Test Method
    Hardness
    Stress Relief Low stress
    Shore A Hardness 24 Test Method
    Elastomeric Elastomer
    Flexibility Soft
    Other Properties
    Specific Gravity 1.070
    Business Information
    Shelf Life Details Storage conditions and shelf life (“Use by” date) are indicated on the product label.
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 12
  • Best Practices for Dow Dowsil HC 1000 Gray Conformal Coating

    *See Terms of Use Below

    1. Surface Preparation

      It is recommended that the coatings be applied to clean and dry substrates prior to application. On certain difficult, low-surface energy surfaces, adhesion may be improved by priming or by special surface treatment such as chemical or plasma etching.

    2. 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 Room Temperature Typical for a 5-mil thickness sample in 180° peel., 1.0 mm thickness, 20°C, 55% RH.
Cure Time Test Methods
Cure Time Test Method
30 min Typical for a 5-mil thickness sample in 180° peel., 1.0 mm thickness, 20°C, 55% RH.
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature
Fast 20 to 25°C Room Temperature
11 min 25°C Room Temperature
Work / Pot Time Test Methods
Work / Pot Time Temperature
>86,400 min <29°C
Dielectric Constant Test Methods
Dielectric Constant Test Method
3.20 1 MHz
Dielectric Strength Test Methods
Dielectric Strength Test Method
Dielectric insulation
525 V/mil JIS K 6249
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00300 1 MHz, JIS K 6249
Volume Resistivity Test Methods
Volume Resistivity Test Method
2.0 E15 (ohm-cm) JIS K 6249
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
24 Durometer