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Elmet Technologies

Park Aerospace Nelcote® V-341 Polybutadiene Prepreg, 503 Quartz Reinforced
Categories: Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes: Nelcote® V-341 is Polybutadiene resin system designed to provide excellent electrical properties in demanding airborne, shipboard, and undersea applications.

Key Features and Benefits:

  • Extremely low Dk/Df values for demanding RF / microwave applications
  • Self adhesive bond to foam cores
  • Long ambient out-time for easy processing
  • Easily processed in both vacuum/oven and autoclave processes
  • A cost effective, shop-friendly alternative to BMI and Cyanate Ester materials in many applications
  • Resistant to fungus, moisture, rain impact, and most chemicals

Applications/Qualifications:

  • High performance radomes
  • Signature control devices
  • US Army Helicopter
  • Air Force Ground-Based Radar

Information provided by Park Electrochemical Corp.
Key Words: PB
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
Volatiles <= 2.0 %
@Temperature 288 °C		<= 2.0 %
@Temperature 550 °F		10 min
Water Absorption 0.050 %0.050 %14 days immersion
 
Mechanical PropertiesMetricEnglishComments
Hardness, Barcol 6767
Tensile Strength, Yield  427 MPa
@Temperature 93.3 °C		62000 psi
@Temperature 200 °F		0° Direction, Dry; ASTM D638
 503 MPa
@Temperature 23.9 °C		73000 psi
@Temperature 75.0 °F		0° Direction, Dry; ASTM D638
Tensile Modulus 20.0 GPa
@Temperature 23.9 °C		2900 ksi
@Temperature 75.0 °F		0° Direction, Dry; ASTM D638
Flexural Strength  172 MPa
@Temperature 93.3 °C		25000 psi
@Temperature 200 °F		Dry; ASTM D790
 193 MPa
@Temperature 93.3 °C		28000 psi
@Temperature 200 °F		Dry; Post-Cure; ASTM D790
 345 MPa
@Temperature 23.9 °C		50000 psi
@Temperature 75.0 °F		Dry; Post-Cure; ASTM D790
 372 MPa
@Temperature 23.9 °C		54000 psi
@Temperature 75.0 °F		Dry; ASTM D790
Flexural Modulus  11.7 GPa
@Temperature 93.3 °C		1700 ksi
@Temperature 200 °F		Dry; Post-Cure; ASTM D790
 15.2 GPa
@Temperature 93.3 °C		2200 ksi
@Temperature 200 °F		Dry; ASTM D790
 18.6 GPa
@Temperature 23.9 °C		2700 ksi
@Temperature 75.0 °F		Dry; Post-Cure; ASTM D790
 20.0 GPa
@Temperature 23.9 °C		2900 ksi
@Temperature 75.0 °F		Dry; ASTM D790
Compressive Strength 152 MPa
@Temperature 93.3 °C		22000 psi
@Temperature 200 °F		Dry; Post-Cure; ASTM D695
Compressive Modulus 20.0 GPa
@Temperature 93.3 °C		2900 ksi
@Temperature 200 °F		Dry; Post-Cure
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant  3.09
@Frequency 1e+10 Hz		3.09
@Frequency 1e+10 Hz
 3.12
@Frequency 3.50e+10 Hz		3.12
@Frequency 3.50e+10 Hz
Dissipation Factor  0.0030
@Frequency 3.50e+10 Hz		0.0030
@Frequency 3.50e+10 Hz
 0.0035
@Frequency 1e+10 Hz		0.0035
@Frequency 1e+10 Hz
 
Processing PropertiesMetricEnglishComments
Gel Time 1.00 - 1.50 min
@Temperature 171 °C		1.00 - 1.50 min
@Temperature 340 °F
Shelf Life  3.00 Month
@Temperature 4.44 °C		3.00 Month
@Temperature 40.0 °F
 6.00 Month
@Temperature -17.8 °C		6.00 Month
@Temperature 0.000 °F
 
Descriptive Properties
Fungus ResistanceRated 1 (Pass)ASTM G21-70
Prepreg Resin Content (%)26-33
Rain Impact ErosionNo detrimental effect at 15 minutes2mm droplet at 1"/hr
Resin Flow (%)6-14350°F, 100psi

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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