Dow Dowsil SE 9157 Conformal Coating Datasheet Dow Dowsil SE 9157 Conformal Coating

Information provided by Gluespec
  • Description for Dow Dowsil SE 9157 Conformal Coating

    • One component • Fast tack-free RT cure • Medium viscosity • No added solvents • Conformal coating • Translucent • 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, Silicone elastomer
    Substrate Low surface energy surfaces
    Industry Connectors, Electronic components, Rigid circuit boards, Sensors, Most delicate components, Flexible circuit boards, Interconnections, PCB system assemblies, Spot protection on components, Printed circuits
    Manufacturer Dow
    Chemistry Silicone, No added solvents
    Application Method Flow: Flow coating
    Cure Method Moisture cure, RTV, RT cure
    Cure Temperature (°C) 20 to 25 RT
    Cure Time (min) Fast, 4,320
    Viscosity (cPs) Medium, 5,675
    Color Translucent
    Ozone Resistance Ozone resistance
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Other Resistance Mechanical protection
    Volume Resistivity (O) 4.0 E15 (ohm*cm)
    Stress Relief Low stress
    Repairability Excellent
    Elastomeric Elastomeric
  • Technical Data for Dow Dowsil SE 9157 Conformal Coating

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Substrate
      • Low Surface Energy - Low surface energy surfaces
      • Other - Other substrates, Most common substrates
    • Industry
      • Electronics - Electronic components, Spot protection on components, Interconnections, Most delicate components
      • Connectors
      • Printed Circuit Board (PCB) - Flexible circuit boards, Rigid circuit boards, Printed circuits, PCB system assemblies
      • Sensors
    • Chemistry
    • Application Method
      • Brush
      • Spray
      • Flow : Flow Coat - Flow coating
      • Dip - May be dip coated with special precautions
      • Other - Syringe
    • Cure Method
      • Room Temperature / Air Dry - RT cure
      • Moisture / Condensation Cure - Moisture cure
      • RTV (Room Temperature Vulcanization) - RTV
    • Color
      • Translucent
    • Brand
      • Dowsil
    Specifications
    Cure Specs
    Cure Temperature (°C) 20 to 25 RT
    Cure Time (min) Fast, 4,320
    Viscosity (cPs) Medium, 5,675 Test Method
    Tack Free Time (min) Fast, 6 Test Method
    Bond Strength
    Tensile Strength (psi) 90 Test Method
    Material Resistance
    Ozone Resistance Ozone resistance
    UV Resistance UV resistance
    Environmental Resistance Environmental protection
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45, -55
    Moisture/Humidity Resistance Moisture/humidity resistance
    Other Resistance Mechanical protection
    Conductivity
    Dissipation Factor 0.00060 Test Method
    Dielectric Strength (V/mil) 675 Test Method
    Dielectric Constant 2.70 Test Method
    Volume Resistivity (O) 4.0 E15 (ohm*cm) Test Method
    Hardness
    Stress Relief Low stress
    Repairability Excellent
    Shore A Hardness 25 Test Method
    Elastomeric Elastomeric
    Elongation (%) 180 Test Method
    Flexibility Soft
    Modulus (psi) 50 Test Method
    Other Properties
    Specific Gravity 0.995 Test Method
    Business Information
    Shelf Life Details Shelf life is indicated by the “Use Before” date found on the product label.
    Shelf Life Temperature (°F) 77
    Shelf Life (mon) 12
  • Best Practices for Dow Dowsil SE 9157 Conformal Coating

    *See Terms of Use Below

    1. Application

      Repairability: In the manufacture of PCB system assemblies, it is often desirable to salvage or reclaim damaged or defective units. Dow conformal coatings offer excellent repairability because they can be removed from substrates and circuitry by scraping or cutting, or by using solvents or stripping agents. If only one circuit component is to be replaced, a soldering iron may be applied directly through the coating to remove the component. After the circuit board has been repaired, the area should be cleaned by brushing or by using solvent, then dried and recoated. Heat cure coatings can be repaired with RTV coatings, but heat cure coatings may not work well when used to repair RTV coatings.

    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.

  • Comparable Materials for Dow Dowsil SE 9157 Conformal Coating

    *See Terms of Use Below

    Spec Engine® Results

Popular Articles

Infographic: ENSURING A STRONG BOND - 6 Basic Methods of Surface Preparation

Read Article

Testing the effectiveness of surface treatments

Read Article

In Depth Questions and Answers on UV/Light Cure Adhesives

Read Article

Silicones in LED Lighting | Gluespec

Read Article

Sponsored Articles

Unique Advantages of Contact Adhesives

Read Article

Using LOCTITE® 454™ is a Valid Option for Engineers Working with a Wide Variety of Materials

Read Article

Sylgard 184 by DOW is the Top Choice for a Transparent, Silicone Encapsulant. Read Why:

Read Article

Case Study: Creating reliable, corrosion-free bonds with LORD® 406 acrylic adhesive

Read Article

Featured Ads

Top Catalog Pages for Dow Dowsil SE 9157 Conformal Coating

Gluespec Poll

When you're researching or sourcing materials online, what device are you using?
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
Fast
6 min 25°C These values are not intended for use in preparing specifications.
Viscosity Test Methods
Viscosity Test Method
Medium
5,675 cPs These values are not intended for use in preparing specifications.
Tensile Strength Test Methods
Tensile Strength Test Method
90 psi These values are not intended for use in preparing specifications.
Dielectric Constant Test Methods
Dielectric Constant Test Method
2.70 @ 1MHz (JIS K 6249), These values are not intended for use in preparing specifications.
Dielectric Strength Test Methods
Dielectric Strength Test Method
675 V/mil JIS K 624, These values are not intended for use in preparing specifications.
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00060 @ 1MHZ (JIS K 6249), These values are not intended for use in preparing specifications
Volume Resistivity Test Methods
Volume Resistivity Test Method
4.0 E15 (ohm*cm) JIS K 6249, These values are not intended for use in preparing specifications.
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
25 Durometer, JIS, These values are not intended for use in preparing specifications.
Elongation Test Methods
Elongation Test Method
180 % These values are not intended for use in preparing specifications.
Modulus Test Methods
Modulus Test Method
50 psi Tensile Modulus,These values are not intended for use in preparing specifications.
Specific Gravity Test Methods
Specific Gravity Test Method
0.995 Cured, These values are not intended for use in preparing specifications.