Dongguan City Betterly New Materials Co., Ltd.

LED-Filament Encapsulating Silicone

The material is a two-component silicone encapsulation, it is mainly applied to high refractive index SMD. It has the advantage of excellent sulfur resistance, high luminousness, high refractive index, good weather resistance, good heat resistance, good fluid property, good heat resistance and long operation time, ect.

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Category: High Refractive Index
  • Specification Of LED-Filament Encapsulating Silicone

    Model No.
    BQ-4238
    BQ-4238 (S)
    BQ-4242
    BQ-4216
    Functional group
    Phenyl silicone resin
    Curing time
    80-110℃/1h+150℃/3hrs
    Before Cured
    Apperance
    Transparent/Transparent
    Mixed viscosity (25℃)
    mPa·s
    5000
    4000
    5500
    5700
    Refractive index
    1.54
    Light transmittance
    92%
    After cured
    Viscosity(25℃)
    g/cm3
    1.16
    Hardness shore A
    50°
    45°
    60°
    55°
    Linear expansion coefficient
    202
    202
    200
    202
    Tensile strength (MPa)
    1.5
    2
    2.8
    2.6
    Glass transition temperature Tg ℃
    30°
    29°
    38°
    36°
    Oxygen permeability
    cm3/m2 ·24h
    370
    390
    350
    345
    Permeable rate
    g/m2 ·24h
    9.1
    9.1
    8.7
    8.4


  • Using Manual Of LED-Filament Encapsulating Silicone

    • Mix the phosphors A, B, and phosphors in proportions until there is no agglomeration, and after they are uniformly thin and thick, put them in a vacuum to completely defoam.


    • Pour the rubber into the syringe to fill the glue, and put the syringe filled with the rubber in a vacuum to drain bubbles again.

    • Before pouring the glue, preheat the bracket or base to remove moisture and avoid bubbles during curing.


    • Finally, two stages of baking are carried out, first low-temperature initial curing reaction, and then high-temperature baking complete curing.



  • Product Certificate Of LED-Filament Encapsulating Silicone

    skin sensitization test of silicone rubber

  • Package Of LED-Filament Encapsulating Silicone

    led filament encapsulating silicone factory


    1kg/bottle


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