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Metal adhesives

Momentive Performance Materials SilCool™ LTR3292 Low Thermal Resistance Silicone Adhesive
Categories: Polymer; Adhesive; Thermoset; Silicone; Silicone, RTV, Adhesive/Sealant Grade

Material Notes: SilCool LTR3292 silicone adhesive is a one-component, low viscosity, thermally conductive material, which will remain in a liquid, uncured state at room temperature and cures to an elastomer when heat is applied. SilCool LTR3292 silicone adhesive provides much higher thermal conductivity than conventional silicone adhesives; making it suitable for use in electrical and electronic applications where thermal management & high heat transfer is critical. Utilizing a specially developed filler technology, SilCool LTR3292 is capable of achieving a reduced bond line thickness and has very low thermal resistance values. It is non-corrosive to metals and has excellent adhesive properties to a wide variety of substrates, including ceramics, glass, and most metals, including aluminum, copper and nickel plate. In addition, it also offers excellent adhesion to a broad range of high performance thermoplastics, such as PPS and PBT.

Key Performance Properties:

  • Excellent thermal conductivity properties
  • Very low thermal resistance
  • Reduced bond line thickness capability (< 2 mils)
  • Heat accelerated cure, one component, to increase productivity
  • Primerless adhesion eliminates mechanical fastening
  • Outstanding long-term performance under high humidity

GE Silicones became a part of Momentive Performance Materials in 2006.

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Physical PropertiesMetricEnglishComments
Specific Gravity 2.62 g/cc
@Temperature 23.0 °C
2.62 g/cc
@Temperature 73.4 °F
Viscosity 12000 cP12000 cP10.0/s, CSL2500 Rheometer
Brookfield Viscosity 30000 cP30000 cP
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 8383
Tensile Strength at Break 2.60 MPa377 psi
Elongation at Break 40 %40 %
Adhesive Bond Strength 0.965 MPa140 psiAluminum lap shear, 1" overlap at 0.125" thickness, 30 min. at 150°C
 3.10 MPa450 psiDie shear, Si die to aluminum shear, 2 hrs. at 150°C
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 4.60e+15 ohm-cm4.60e+15 ohm-cm
Dielectric Constant 6.2
@Frequency 1000 Hz
6.2
@Frequency 1000 Hz
Dielectric Strength 17.4 kV/mm442 kV/in
Dissipation Factor 0.0020
@Frequency 1000 Hz
0.0020
@Frequency 1000 Hz
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 1.56 W/m-K10.8 BTU-in/hr-ft²-°FBulk
 
Descriptive Properties
ColorGray
ConsistencyFlowable
Ionic content<5ppmNa+,K+,Cl+, uncured samples
Thermal Resistance28 mm2K/Wat 23°C

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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PGESIL065 / 41056

Metal adhesives

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