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Elmet Technologies

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Park Aerospace Nelcote® S-860 Silicone Prepreg, 1581-112NPH E-Glass Reinforced
Categories: Polymer; Thermoset; Silicone

Material Notes: Nelcote® S-860 is a MIL-P-25518 type silicone resin with a good combination of electrical and high temperature properties. GMS4001 qualified specifications

Key Features and Benefits:

  • 500°F maximum service temperature
  • Good electrical and mechanical properties at high temperatures
  • Low out-gassing for space applications

Applications/Qualifications:

  • Radomes
  • Aircraft Structures

Information provided by Park Electrochemical Corp.

Key Words: SI
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 1.76 g/cc
Volatiles <= 2.5 %
@Temperature 163 °C
8 min
 
Mechanical PropertiesOriginal ValueComments
Hardness, Barcol 59
Tensile Strength, Yield 32000 psi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D638 Type 1
Tensile Modulus 2700 ksi
@Temperature 23.9 °C
0° Direction, Dry; ASTM D638 Type 1
Flexural Strength 41.0 ksi
@Temperature 23.9 °C
Dry; ASTM D790
Flexural Modulus 2700 ksi
@Temperature 23.9 °C
Dry; ASTM D790
Compressive Strength 24.0 ksi
@Temperature 23.9 °C
Dry; ASTM D695
Compressive Modulus 2800 ksi
@Temperature 23.9 °C
Dry; ASTM D695
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 4.15
@Frequency 9.375e+9 Hz
Dissipation Factor 0.013
@Frequency 9.375e+9 Hz
 
Processing PropertiesOriginal ValueComments
Gel Time 3.00 - 4.00 min
Shelf Life 3.00 Month
@Temperature 4.44 °C
 6.00 Month
@Temperature -17.8 °C
 
Descriptive Properties
Fabric Area Weight (g/m²)302
Prepreg Resin Content (%)31-41
Resin Flow (%)10-16340°F, 10psi

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Park Aerospace Nelcote® F-502 Phenolic Prepreg, 7781 E-Glass Reinforced

PPARK069 / 89341

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