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Master Bond adhesives

Wacker Semicosil® 924 Silicone Gel
Categories: Polymer; Thermoset; Silicone; Silicone Rubber

Material Notes: SEMICOSIL® 924 is a pourable, thermally curable, addition-curing one-part silicone rubber that cures to a very soft silicone gel.

Special features:

  • one-part, ready-to-use
  • thixotropic flow
  • forms a soft gel on vulcanization
  • low content of volatiles
  • low content of uncured polymer
  • low ion content
  • almost constant properties between –50 °C and +180 °C
Application: Because of the thixotropic behavior, SEMICOSIL® 924 is specially recommended for local encapsulation of delicate electronic components, e.g. bonded chips on hybrid components which are exposed to extreme external influences.

Information provided by Wacker Chemie AG.

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 0.970 g/cc0.0350 lb/in³uncured; DIN 51757
 0.980 g/cc0.0354 lb/in³cured; ISO 2781
Viscosity  2000 cP
@Shear Rate 100 1/s
2000 cP
@Shear Rate 100 1/s
ISO 3219
 35000 cP
@Shear Rate 0.500 1/s
35000 cP
@Shear Rate 0.500 1/s
ISO 3219
 
Mechanical PropertiesMetricEnglishComments
Penetration 50
@Load 0.00938 kg
50
@Load 0.0207 lb
[mm/10], quarter cone; DIN ISO 2137
 
Processing PropertiesMetricEnglishComments
Cure Time  10.0 min
@Treatment Temp. 150 °C
0.167 hour
@Treatment Temp. 302 °F
1 cm
 30.0 min
@Treatment Temp. 150 °C
0.500 hour
@Treatment Temp. 302 °F
circulating air oven
 40.0 min
@Treatment Temp. 130 °C
0.667 hour
@Treatment Temp. 266 °F
1 cm
 240 min
@Treatment Temp. 100 °C
4.00 hour
@Treatment Temp. 212 °F
1 cm
 
Descriptive Properties
Colortranslucent
Content5 ppmExtractable ion content, 121 °C / 48 h (Na, K, Li, Cl)

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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PWACK9415 / 204944

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