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Ensinger PEI

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CHT QSil 209 Transparent Liquid Silicone Elastomer
Categories: Polymer; Thermoset; Silicone; Silicone Rubber; Liquid Silicone Rubber (LSR)

Material Notes: Description: The product is a transparent and colorless silicone formulation and is ideal for optical applications. The viscosity profile enables excellent flow around components and is excellent for potting complex parts. The chemical composition results in a cured product that is hydrolytically stable as well as reversion resistant. The silicone elastomer provides electrical insulation and physical shock resistance of components and enables environmental protection.

Key Features

  • 1:1 mix ratio
  • Low linear shrinkage
  • Non-yellowing catalyst system
  • Chemical adhesion with use of primer
Application: LED encapsulation

Information provided by CHT Group

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Physical PropertiesOriginal ValueComments
Density 1.00 g/ccA
 1.00 g/ccB
Brookfield Viscosity 2600 cPB
 6700 cPMixed
 11000 cPA
Storage Temperature <= 38.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 60ASTM D2240-95
Tensile Strength >= 801 psiISO 37
Elongation at Break 80 %ISO 37
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.50e+16 ohm-cmASTM D-257
Dielectric Strength 500 V/mil
 
Thermal PropertiesOriginal ValueComments
Thermal Conductivity 0.180 W/m-K
Maximum Service Temperature, Air 204 °C
Minimum Service Temperature, Air -50.0 °C
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.41
 
Processing PropertiesOriginal ValueComments
Cure Time 20.0 min
@Temperature 150 °C
Pot Life 240 min
Gel Time 480 - 600 min
Shelf Life 24.0 Month
 
Descriptive Properties
AppearanceAddition
ColorTransparentCured Product
 Transparent and colorlessA
 Transparent and colorlessB
Mix Ratio1:1By Weight
RheologyLiquid, Newtonian

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PCHTSIL055 / 314538

Proto3000 – 3D Engineering Solutions

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