Dow 1-2620 Low VOC RTV Coating Datasheet Dow 1-2620 Low VOC RTV Coating

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  • Description for Dow 1-2620 Low VOC RTV Coating

    One-part, low viscosity; ozone-safe, solvent-borne, elastoplastic silicone resin; excellent abrasion resistance; RTV or heat accelerable cure.

    *See Terms of Use Below

    Chemical Resistance Good
    Application Type Conformal Coat
    1 Part or 2 Part 1-Part
    Material Form Liquid
    Industry Electronic Printed Wiring Board (PWB), Smart Meters, E-Mobility Solutions, Smart Home Devices, Insulation, Headlamp assemblies, Flexible circuit boards, Rigid circuit boards
    Manufacturer Dow
    Chemistry Silicone resin
    Application Method Flow: Flow coating
    Cure Method RTV, Moisture, Mild Heat
    Cure Temperature (°C) 20 to 25, 60, 60, 25
    Cure Time (min) 60, 2.00, 10
    Viscosity (cPs) 350, Low
    Color Translucent
    Ozone Resistance Ozone Resistance
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Volume Resistivity (O) 1.05E+15 (ohms/cm)
    Key Specifications Mil-Spec (United States Military Standard): I-46058-C: Mil-I-46058C Amend. 7, UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): UL 94: UL-94 V-0 flammability rating, IPC (Association Connecting Electronics Industries): IPC-CC-830 Qualified, UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association): (Amend.1) UL746E, IPC (Association Connecting Electronics Industries): IPC-CC-830A

  • Technical Data for Dow 1-2620 Low VOC RTV Coating

    *See Terms of Use Below

    Overview
    • Chemical Resistance
      • Chemical Resistance - Good
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Liquid
    • Industry
      • Smart Meters
      • Smart Home Devices
      • E-Mobility Solutions
      • Headlamp - Headlamp assemblies
      • Electronics - Electronic Printed Wiring Board (PWB), Flexible circuit boards, Rigid circuit boards
      • Insulation
    • Chemistry
    • Application Method
      • Dispenser - Robotic dispensing, Select coating
      • Brush
      • Spray
      • Flow : Flow Coat - Flow coating
      • Dip
      • Screen Print - Automated pattern
    • Cure Method
      • Moisture / Condensation Cure - Moisture
      • Heat - Mild Heat
      • RTV (Room Temperature Vulcanization) - RTV
    • Color
      • Translucent
    • Key Specifications
      • Mil-Spec (United States Military Standard) : I-46058-C : Amd. 7 - Mil-I-46058C Amend. 7
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : UL 94 : V0 - UL-94 V-0 flammability rating
      • IPC (Association Connecting Electronics Industries) : CC-830 - IPC-CC-830 Qualified
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : 746E - (Amend.1) UL746E
      • IPC (Association Connecting Electronics Industries) : CC-830A - IPC-CC-830A
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25, 60, 60, 25 Test Method
    Cure Time (min) 60, 2.00, 10 Test Method
    Viscosity (cPs) 350, Low
    Tack Free Time (min) 15, 5.00 Test Method
    Work / Pot Time (min) >86,400 Test Method
    Material Resistance
    Non-Corrosive Corrosion Resistance
    Ozone Resistance Ozone Resistance
    Abrasion Resistance Abrasion Resistance
    UV Resistance UV 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 0.00200, 0.00400 Test Method
    Dielectric Strength (V/mil) Durable, 400
    Dielectric Constant 2.49, 2.48 Test Method
    Volume Resistivity (O) 1.05E+15 (ohms/cm)
    Hardness
    Shore A Hardness 80
    Shore D Hardness 25
    Flexibility Flexible
    Other Properties
    Specific Gravity 1.000, 0.880, 1.120 Test Method
    Flash Point (°F) 60.8
    Business Information
    Shelf Life Details Storage conditions and shelf life (“Use by” date) are indicated on the product label.
    Shelf Life Temperature (°F) 77
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 12

  • Best Practices for Dow 1-2620 Low VOC RTV Coating

    *See Terms of Use Below

    1. Curing

      The time required to reach a tack-free state can be reduced with heat. When using heat for this purpose, allow adequate time for the solvent to evaporate prior to exposing to elevated temperatures in an air circulating oven. A typical cure schedule for 3 mil coatings is 10 minutes at room temperature, followed by 10 minutes at 80°C. If the coating blisters or contains bubbles, allow additional time at room temperature for the solvent to flash off prior to oven cure.

    2. Testing

      If a substrate or material is questionable with respect to potentially causing inhibition of cure, it is recommended that a small scale compatibility test be run to ascertain suitability in a given application. The presence of liquid or uncured product at the interface between the questionable substrate and the cured gel indicates incompatibility and inhibition of cure.

  • Comparable Materials for Dow 1-2620 Low VOC RTV Coating

    *See Terms of Use Below

    Spec Engine® Results

    • Dow
      Dowsil 1-2577 Low VOC Conformal Coating(Dow)

      One-part, medium viscosity; ozone-safe, solvent-borne, elastoplastic silicone resin; excellent abrasion resistance; RTV or heat accelerable cure.

    • Dow
      Dowsil HC 1100 Conformal Coating(Dow)

      One-part, gray, fast, tack-free conformal coating with controlled volatility and medium viscosity, Solventless RTV elastomeric conformal coatings require atmospheric moisture to cure, needing no expensive ovens, and various viscosity versions facilitate different application methods

    • Dow
      Dowsil HC 2000 UV Coating(Dow)

      • One-part • Translucent • Fast tack-free • Flowable • Conformal coating • RT cure •

    • Compare All
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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
20 to 25°C Typical for a 5-mil thickness sample in 180° peel.
60°C Time to cohesive failure on a 180° peel strip. Coating strength may continue to improve with time. Thicker samples require additional cure time., To prevent bubbles or voids from forming, applications thicker than 5 mils may require a 5- to 10-minute hold time at room temperature to allow solvents to evaporate before the material is exposed to higher temperatures, 15% RH
60°C
25°C
Cure Time Test Methods
Cure Time Test Method
60 min Typical for a 5-mil thickness sample in 180° peel.
2.00 min Time to cohesive failure on a 180° peel strip. Coating strength may continue to improve with time. Thicker samples require additional cure time., To prevent bubbles or voids from forming, applications thicker than 5 mils may require a 5- to 10-minute hold time at room temperature to allow solvents to evaporate before the material is exposed to higher temperatures, 15% RH
10 min
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
15 min 25°C
5.00 min 60°C 15% RH
Work / Pot Time Test Methods
Work / Pot Time Temperature
>86,400 min <29°C
Dielectric Constant Test Methods
Dielectric Constant Test Method
2.49 Dielectric constant, 100 Hz
2.48 Dielectric constant, 100 KHz
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00200 Dissipation factor, 100 Hz
0.00400 Dissipation factor, 100 KHz
Specific Gravity Test Methods
Specific Gravity Test Method
1.000
0.880 Uncured
1.120 Cured