• Description for Dow JCR 6115

    Low-modulus LED encapsulant; low viscosity; fast cure; very long working time.

    *See Terms of Use Below

    Application Type Encapsulant
    1 Part or 2 Part 2-Part
    Material Form Liquid, Silicone elastomer
    Industry Light Emitting Diodes (LEDs)
    Manufacturer Dow
    Chemistry Silicone elastomer, Solvent-free
    Cure Method 2-Part Cure, Heat
    Cure Temperature (°C) 175
    Cure Time (min) Fast, 5.00
    Viscosity (cPs) Low
    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 6115

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Elastomer - Silicone elastomer
      • Liquid
    • Industry
      • LED (Light-Emitting Diodes) - Light Emitting Diodes (LEDs)
    • Chemistry
    • Cure Method
      • Heat
      • 2-Part Cure
    Specifications
    Cure Specs
    Cure Temperature (°C) 175
    Cure Time (min) Fast, 5.00
    Viscosity (cPs) Low
    Work / Pot Time (min) Very long
    Mix Ratio 1:1 (by volume)
    Bond Strength
    Tensile Strength (psi) 0.4 (Mpa)
    Material Resistance
    High Temperature Resistance (°C) 200
    Low Temperature Resistance (°C) -45
    Conductivity
    Dielectric Strength (V/mil) Durable
    Hardness
    Shore A Hardness 13
    Elongation (%) 1
    Flexibility Flexible
    Modulus (psi) Low, 0.2 (Young's (MPa))
    Other Properties
    Light Refractive Index (RI) 1.4040, 1.3960, 1.3950 Test Method
    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) 6
  • Best Practices for Dow JCR 6115

    *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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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