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DOW™ Electrical & Telecommunications DFD-4960 NT

Low Density Polyethylene Cellular Insulation Compound

Supplied by The Dow Chemical Company

The technical datasheet with complete property values for DOW™ Electrical & Telecommunications DFD-4960 NT is available to members of the Prospector Plastics Database.
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Product Description
DFD-4960 Natural is an expandable, low-density polyethylene compound designed for use as insulation in
applications requiring good cell structure and low electrical losses. It contains a temperature-sensitive blowing agent to provide a density between 0.40 and 0.48 g/cm³ when completely foamed.

DFD-4960 Natural is widely used in coaxial applications, twin lead and CATV cables.
General  
Material Status 
  • Commercial: Active
Availability 
  • Africa & Middle East
  • Asia Pacific
  • Europe
  • Latin America
  • North America
Uses 
  • Cellular Insulation
  • Coaxial Cable Insulation
  • Foam
  • Telecommunications
  • Wire & Cable Applications
Forms 
  • Pellets
Physical
Nominal Value
Unit
Test Method
Specific Gravity
    ASTM D792
-- 2
 
 
-- 3
 
 
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)
g/10 min
ASTM D1238
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength
    ASTM D638
-- 2
psi
 
-- 3
psi
 
Tensile Elongation
    ASTM D638
Break 2
%
 
Break 3
%
 
Electrical
Nominal Value
Unit
Test Method
Dielectric Strength 4 (0.125 in)
V/mil
ASTM D149
Dielectric Constant
    ASTM D1531
1 MHz 2
 
 
1 MHz 5
 
 
Dissipation Factor
    ASTM D1531
1 MHz 2
 
 
1 MHz 5
 
 
Related Terminology
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Uses
Uses may also be described by the following terms: Cellular Insulation, Wire and Cable Applications, Wire & Cable Applications, Coaxial Cable Insulation.
Extrusion
Nominal Value
Unit
 
Melt Temperature
°F
 
Extrusion Notes
DFD-4960 Natural Insulation Compound provides excellent surface finish and outstanding output rates over a broad range of conditions. For optimum results, use melt extrusion temperatures in the suggested range of 280 to 320°F (138-160°C). However, specific recommendations for processing conditions can be determined only when the application and type of processing equipment are known. Please contact your local Dow Wire and Cable sales representative for such particulars.
Notes
1Typical properties: these are not to be construed as specifications.
2Expanded: values largely subject to processing conditions
3Solid
4Method A (Short-Time)
5Unexpanded
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.