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Master Bond adhesives

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Henkel Loctite® Stycast® 5952-1 Two-Component Silicone Encapsulant
Categories: Polymer; Thermoset; Silicone; Silicone Elastomer, for Thermal Management

Material Notes: Loctite Stycast 5952-1 provides the following product characteristics:
  • Electrically non-conductive
  • Good elongation strength
  • Moderate tear strength
  • High thermal conductivity

Cure: Heat cure

Application: Potting or Encapsulant

Typical Assembly Applications: Transformers, Rectifiers, Thyristors, Power supplies and Heat generating modules

Other Application Areas: Thermally conductive roll coatings, Heat sinks and Thermal pads

Loctite Stycast 5952-1 is designed for encapsulation of heat generating devices. It is also recommended for applications requiring a non-corrosive casting and coating.

Loctite Stycast 5952-1 may be cured over a broad range of temperatures. After 24 hours at room temperature, it will be hard enough to handle. Optimum properties will be achieved after 7 days. Loctite Stycast 5952-1 can be cured rapidly at elevated temperatures, even in thick sections. For optimum performance, follow the initial cure with a post cure of 2 hours at 175ºC.

Information provided by Henkel.

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 2.05 g/ccMixed
 2.05 g/ccPart A
 2.125 g/ccPart B
Viscosity 25000 cPPart B
 30000 cPMixed
 60000 cPPart A
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 75
Tensile Strength 4.00 MPa
Elongation at Break 45 %
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+14 ohm-cm
Dielectric Constant 5.0
@Frequency 1e+6 Hz
Dielectric Strength 17.0 kV/mmASTM D149
Dielectric Loss Index 0.010
@Frequency 1e+6 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 200 µm/m-°C
Thermal Conductivity 0.800 W/m-K
 
Processing PropertiesOriginal ValueComments
Cure Time 1.00 hour
@Temperature 100 °C
Loctite Stycast 5952-1 may be cured over a broad range of temperatures.
Pot Life 100 min
@Temperature 100 °C
Mixed Pot Life
Shelf Life 6.00 MonthPart A, from date of manufacture
 6.00 MonthPart B, from date of manufacture
 
Descriptive Properties
AppearanceRedPart A
 WhitePart B
Mix Ratio, by Weight1 : 1Part A : Part B

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PHENK7940 / 255425

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