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Specialty Compounds RTP Company

Momentive Performance Materials RTV88 Silicone Rubber Compound for High Temperature, Red
Categories: Polymer; Adhesive; Thermoset; Silicone; Silicone, RTV, Adhesive/Sealant Grade

Material Notes: RTV31, RTV60 and RTV88 silicone rubber compounds are high temperature two-part silicone elastomers. They are supplied ready-to-use with a base compound and DEBT (deputy tin deflagrate) as the standard curing agent. DEBT is suitable for most applications, however other catalysts are available to facilitate deep section cure, faster cure and automated mixing.

RTV31, RTV60 and RTV88 silicone rubber compounds differ primarily in viscosity in the uncured state.

Mechanical and electrical properties for 0.5 wt% DEBT curing agent added, cured 7 days at 25°C and 50% relative humidity.

Key Performance Properties:

  • Variable work times and cure rates by adjusting the amount and type of curing agent
  • Room temperature cure
  • Composition free of solvents and solvent odor
  • Excellent adhesion capabilities with primer
  • Excellent release properties
  • Retention of elastomeric properties at temperatures from -54°C(-65°F) up to 260°C (500°F) continuously, and up to 316°C (600°F) for short periods of time

Applications:

  • Potting and encapsulating electric motors and transformers
  • Fabrication of rubber parts
  • Casting molds for low-melting point metals
  • Release applications such as rubber rollers
  • Thermal insulation

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

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.47 g/cc1.47 g/cc
Viscosity 880000 cP880000 cP
Linear Mold Shrinkage 0.0060 cm/cm0.0060 in/in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 5858
Tensile Strength, Ultimate 5.79 MPa839 psi
Elongation at Break 120 %120 %
Tear Strength 7.85 kN/m44.8 pli
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.80e+14 ohm-cm2.80e+14 ohm-cm
Dielectric Constant 4.6
@Frequency 1000 Hz
4.6
@Frequency 1000 Hz
Dielectric Strength 17.4 kV/mm442 kV/in
Dissipation Factor 0.030
@Frequency 1000 Hz
0.030
@Frequency 1000 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 200 µm/m-°C
@Temperature 20.0 °C
111 µin/in-°F
@Temperature 68.0 °F
Specific Heat Capacity 1.46 J/g-°C0.350 BTU/lb-°F
Thermal Conductivity 0.310 W/m-K2.15 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 260 °C500 °F
Brittleness Temperature -54.0 °C-65.2 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 1440 min
@Temperature 25.0 °C
24.0 hour
@Temperature 77.0 °F
0.5% DBT curing agent added
 
Descriptive Properties
ColorRed
ConsistencySpreadable paste
Work Time0.75 hoursAt 25°C, 0.5% DBT curing agent added

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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PGESIL029 / 41020

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