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Elmet Technologies

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 PropertiesMetricEnglishComments
Density 0.750 g/cc0.0271 lb/in³
Viscosity 45000 cP
@Temperature 25.0 °C
45000 cP
@Temperature 77.0 °F
Mixed
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 7070
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 2.0
@Frequency 1e+6 Hz
2.0
@Frequency 1e+6 Hz
Dielectric Strength 9.84 kV/mm250 kV/in
 
Thermal PropertiesMetricEnglishComments
Maximum Service Temperature, Air 260 °C500 °F
Minimum Service Temperature, Air -65.0 °C-85.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 240 - 360 min4.00 - 6.00 hour

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PEMERS04 / 35696

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