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Ensinger PEI

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Trelleborg Emerson & Cuming Stycast® 4640-25 Two-Component Silicone Flexible Encapsulant
Categories: Polymer; Adhesive; Thermoset; Silicone

Material Notes: Emerson & Cuming 4640-25 Stycast® Two-Component Silicone Flexible Encapsulant
Description

An RTV condensation cure. Pourable and room temperature curable.

Features
  • High Temperature
  • Poor Chemical Resistance
  • Filled
  • Mix Ratio (by weight) = 100:0.4
Cure Type: Room Temp or Heat Bonding Type: Silicone

The Stycast® product line is now a part of Henkel; this specific grade is discontinued.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 0.750 g/cc
Viscosity 45000 cP
@Temperature 25.0 °C
Mixed
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 70
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 2.0
@Frequency 1e+6 Hz
Dielectric Strength 250 V/mil
 
Thermal PropertiesOriginal ValueComments
Maximum Service Temperature, Air 260 °C
Minimum Service Temperature, Air -65.0 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 4.00 - 6.00 hour

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