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DOW™ Electrical & Telecommunications DGDK-6862 NT

Colorable High Density Polyethylene Compound for Cable Jacketing

Supplied by The Dow Chemical Company

The technical datasheet with complete property values for DOW™ Electrical & Telecommunications DGDK-6862 NT is available to members of the Prospector Plastics Database.
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Product Description
DGDK-6862 NT Polyethylene Resin for Self coloring Jackets is a high density Polyethylene resin that can be used as a cable jacketing material when properly colored and stabilized. The material exhibits properties such as high hardness, toughness, tensile strength and heat resistance in combination with good flexibility, excellent environmental stress crack resistance and good processing properties.
Due to the unique combination of HDPE and MDPE properties, DGDK-6862 NT is an excellent material for power cable and telecommunications cable jackets.

Applications.
DGDK-6862 NT is a natural resin that needs to be blended with a carbon black or color masterbatch with a suitable U.V.-stabilizer to ensure sufficient weathering resistance. A suitable antioxidant level is required for ageing resistance.
A further olefinic polymer is preferably added for optimized processability. This can be done together with the colorant and stabilizer. The jacket can be used for power cables and telecommunication cables including fiber optic cables.

Storage.
The environment or conditions of storage greatly influences the recommended storage time. Storage under extreme conditions may affect the quality, processing or performance of the product. Storage should be in accordance with good manufacturing practices such as a dry environment and storage temperatures between 10 and 30°C.

Main Characteristics:
  • High Vicat softening point
  • Good flexibility
  • Excellent ESCR
  • Low shrinkage

The polymeric material, using industry standard commercial extrusion practice, is compliant for use in Wire and Cable components that meet cable specifications such as:
  • ASTM D 1248 Type III, Class A, Category 4, Grade J4
  • EN 50290-2-24
  • IEC 60502-2 ST7
Consult the regulations for complete details.
General  
Material Status 
  • Commercial: Active
Availability 
  • Europe
Uses 
  • Cable Jacketing
  • Coaxial Cable Jacketing
  • Power Cable Jacketing
  • Wire & Cable Applications
  
Agency Ratings 
Forms 
  • Pellets
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
 ISO 1183
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)
g/10 min
 ISO 1133
Environmental Stress-Cracking Resistance (122°F, 10% Igepal, F0)
hr
 IEC 60811-4-1
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength
psi
 IEC 60811-1-1
Tensile Elongation
      
Break 2
%
 IEC 60811-1-2
Break
%
 IEC 60811-1-1
Flexural Modulus
psi
 ISO 178
Hardness
Nominal Value
Unit
Test Method
Shore Hardness (Shore D, 15 sec)
 
 ISO 868
Thermal
Nominal Value
Unit
Test Method
Brittleness Temperature 3
°F
 ASTM D3895
Vicat Softening Temperature
°F
 ISO 306/A50
Electrical
Nominal Value
Unit
Test Method
Volume Resistivity (73°F)
ohm·cm
 IEC 60093
Dielectric Constant (1 MHz)
 
 IEC 60250
Additional Information
Measured on compression moulded plaques.
Related Terminology
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Uses
Uses may also be described by the following terms: Wire and Cable Applications, Wire & Cable Applications, Coaxial Cable Jacketing.
Agency Ratings
This plastic material has 3 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): ASTM (1), EN (1), IEC (1).
Extrusion
Nominal Value
Unit
 
Melt Temperature
°F
  
Extrusion Notes
DGDK-6862 NT can be extruded using a range of conventional jacketing extruders. Typical extruder barrel temperatures depend on many factors such as extruder size and die dimensions. A good starting point is:
140/190/200/200/200/210/210°C with melt temperatures below 250°C.
Notes
1Typical properties: these are not to be construed as specifications.
2After ageing 10 days @100°C (212°F)
3Notched, F0
 
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.