Dow JCR 6126 W/C

Dow JCR 6126 W/C Datasheet
  • Description for Dow JCR 6126 W/C

    Translucent, medium-modulus LED encapsulant; thixotropic; very long working time.

    *See Terms of Use Below

    Application Type Encapsulants
    1 Part or 2 Part 2 Part
    Material Form Liquid, Silicone elastomer
    Industry Light Emitting Diodes (LEDs), Displays
    Manufacturer Dow
    Chemistry Silicone elastomer, Solvent-free
    Cure Method Heat, Base/catalyst
    Cure Temperature (°C) 150
    Cure Time (min) 60
    Viscosity (cPs) Thixotropic, 86,400, 91,800
    Color Translucent
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45
    Light Refractive Index (RI) 1.4040, 1.3960, 1.3950
  • Technical Data for Dow JCR 6126 W/C

    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 2 Part
      • Part A Name - Base
      • Part B Name - Cat
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Industry
      • LED (Light-Emitting Diodes) - Light Emitting Diodes (LEDs)
      • Displays
    • Chemistry
    • Cure Method
      • Heat
      • 2-Part Cure - Base/catalyst
    • Color
      • Translucent
    Cure Specs
    Cure Temperature (°C) 150
    Cure Time (min) 60
    Viscosity (cPs) Thixotropic, 86,400, 91,800
    Work / Pot Time (min) Very long
    Mix Ratio 10:1 (by volume)
    Bond Strength
    Tensile Strength (psi) 1.8 (Mpa)
    Material Resistance
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45
    Dissipation Factor 0.00090 Test Method
    Dielectric Strength (V/mil) Durable, 600
    Dielectric Constant 2.80 Test Method
    Volume Resistivity (O) 3.4E15 (ohm*cm)
    Shore A Hardness 26 Test Method
    Elongation (%) 3
    Flexibility Flexible
    Modulus (psi) Medium, 0.7 (Young's (MPa))
    Other Properties
    Glass Transition Temp (Tg) (°C) -121
    Light Refractive Index (RI) 1.4040, 1.3960, 1.3950 Test Method
    Coefficient of Thermal Expansion (CTE) 300 (ppm/°C)
    Flash Point (°F) 212.0
    % Solids (%) 100
    Business Information
    Shelf Life Details Shelf life is indicated by the “Use Before” date found on the product label., Dow Corning two-part products should be stored at or below 25°C (77°F). Containers should be kept tightly closed at all times to extend shelf life., Check the product label for specific storage conditions.
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 9
  • Best Practices for Dow JCR 6126 W/C

    *See Terms of Use Below

    1. Surface Preparation

      Surfaces should be clean and dry. Recommended cleaning methods include Dow Corning® brand OS Fluids, naphtha, mineral spirits, methyl ethyl ketone (MEK) or other suitable solvent. Rougher surfaces tend to promote adhesion of silicones to other surfaces.

    2. Application

      These products are also compatible with commercially available equipment and industry standard processes. These materials can be dispensed or molded depending on the product and application.

    3. Clean-Up

      Dow Corning OS Fluids are recommended to clean cured or uncured silicone residue from application equipment.

    4. 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 silicone indicates incompatibility and inhibition of cure.

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Dielectric Constant Test Methods
Dielectric Constant Test Method
2.80 1 MHz
Dissipation Factor Test Methods
Dissipation Factor Test Method
0.00090 1 MHz
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
26 JIS
Light Refractive Index (RI) Test Methods
Light Refractive Index (RI) Test Method
1.4040 Cures at 633 nm
1.3960 Cured at 1321 nm
1.3950 Cured at 1554 nm