Dow ENDURANCE™ HFDK-4201 SC Data Sheet

Cleanliness:
The cleanliness is assured through a number of precautions taken in during the manufacturing of the DOW ENDURANCE™ HFDK-4201 SC.
The specifications are set to exclude contaminants >100µm.

Stabilization system and color development:
The Dow ENDURANCE™ HFDK-4201 SC is equipped with a very efficient stabilization system, providing excellent stability against both thermal degradation and scorch. The stabilizer is compatible with PE and does not recrystallize in the end product. The result is cables without crystal contamination or sweat-out issues. Most AOs add color to plastic when exposed to heat. The interaction of the AO and peroxide in the HFDK-type XLPE generates a reddish-orange color in thermoplastic material. During crosslinking this, this color becomes totally transparent in the melt, or translucent white upon solidification. For thick walled cables and/or cables with higher heat exposure, a greenish-yellow color may appear. The strength of this color is increasing with the heat exposure. The coloration of the caused by the interaction of the AO and the peroxide does not involve the polymer. The ppm level of coloring agents measured in the plastic represents a fraction of a percent of the AO, and therefore does not influence the polymer, nor the AO itself. The performance and service life of the finished cable is therefore not affected by the color.

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. DOW ENDURANCE HFDK-4201 SC is extremely storage stable even at elevated temperatures. Peroxide may start to migrate at temperatures below 15°C.
The recommended maximum storage time is 1 year at 40°C and not more than 2 months below 15°C. In general, the material can be used for regular HV and MV applications within two years after production if stored the remaining time between 15 and 30°C. It is recommended that the practice of using the product on a first-in / first-out basis be established.

Packaging:
DOW ENDURANCE™ HFDK-4201 SC can be delivered in Dow's UNICLEAN™ big bags, or in 1000 kg octabins.

Product names can be difficult to match. You may have searched any one of these terms to find this product: Dow ENDURANCE™ HFDK-4201 SC, Dow ENDURANCE HFDK4201 SC, Dow ENDURANCE™ , Dow ENDURANCE, DowENDURANCEHFDK4201SC, DowENDURANCE, HFDK, HFDK-4201 SC, HFDK4201 SC, HFDK:4201 SC, HFDK/4201 SC, HFDK+4201 SC, HFDK_4201 SC, HFDK 4201 SC, HFDK4201, 4201SC, HFDK4201SC, HFDK_4201SC, Polyethylene, Low Density, Polyethylene Low Density, LDPE, Polyethylene, PE, Dow, PolyethyleneLowDensity, 4201HFDK

Uses may also be described by the following terms: High Voltage Insulation, Wire and Cable Applications, Wire & Cable Applications.

This plastic material has 5 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): HD (1), IEC (2), ICEA (1), AEIC (1).

DOW ENDURANCE™ HFDK-4201 SC provides excellent surface finish and outstanding output rates over a broad range of conditions. For optimum results, melt extrusion temperatures in the range of 115 -140°C are recommended, and preferably 135°C for HV applications.
If desirable DOW ENDURANCE HFDK-4201 SC allows the use of fine mesh screens (400mesh/65µm) without causing pressure build up over time. The use of 250 mesh screens (100µm) is common. Specific recommendations for processing conditions can be determined when the application and processing equipment type are known.

At start-up, it is recommended to use DFDK-4850 transition compound to achieve stable extruder conditions.