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SuperOhm® 3748

1 of 23 products in this brand
Orange polymeric composition in pellet form, based on EPR rubber containing peroxide curing agent, ready for extrusion in a conventional CV or dry cure extrusion line.

Polymer Name: Ethylene Propylene Copolymer

Processing Methods: Extrusion

Density: 1130.0 - 1170.0 kg/m³

    Knowde Enhanced TDS

    Identification & Functionality

    Technologies

    Features & Benefits

    Labeling Claims

    Applications & Uses

    Plastics & Elastomers Processing Methods
    Applications
    • Cables insulated with SUPEROHM® 3748 are suitable for industrial, power, mining, distribution, and other medium voltage applications for wire and cable products rated up to 35 kV.

    Properties

    Color
    Physical Form
    Mechanical Properties
    ValueUnitsTest Method / Conditions
    Elongation450%
    Specific Gravity1.13 - 1.17
    Tensile Strength1700psi
    Thermal Properties
    ValueUnitsTest Method / Conditions
    Retained Elongation (7 Days in 136°C Air Oven)90%
    Retained Tensile (7 Days in 136°C Air Oven)90%
    Electrical Properties
    ValueUnitsTest Method / Conditions
    Dielectric Constant2.6
    Volume Resistivity1.0 X 10^16Ohm-cm
    Dielectric Strength900V/mil

    Regulatory & Compliance

    Chemical Inventories
    Specifications

    When extruded and cured consistent with standard safe wire and cable industry practices, cable insulated with SUPEROHM® 3748 EPR insulation will comply with the requirements as specified in the following standards:
    ASTM D-2802 and D-2770
    ICEA S-68-516
    NEMA Pub. No. WC-70, WC-71, WC-74
    AEIC CS8-00
    ANSI / ICEA S-94-649-2000 Class I, II, III
    IEC Publication 60502
    UL 1072 for type MV-90, MV-105

    Certification
    • Certified Test Results including physical test data are included with each shipment.

    Technical Details & Test Data

    Processing

    SUPEROHM 3748 compound is engineered to be processed on conventional extrusion equipment. It is recommended that this product is processed using a shallow screw, cross channel obstruction such as mixing rings should be avoided. Metering screw with 2.5-3:1 compression ratio in 20/1 extruders should produce satisfactory results. The compound supplied is in the cleanest state and is of the highest quality; however, the use of a breaker plate with a screen pack of approximately 20/40 or 20/60 mesh is recommended for optimal rheological flow and steady back pressure.


    Pre-drying of the compound is not necessary, provided that the compound has been stored unopened in a cool, dry area.
    The following conditions are given as a guide for processing (single extrusion):

    Temperature Profile:

    °F

    °C

    Screw:

    170-180

    77-82

    Zone 1 (feed):

    210-220

    99-105

    Zone 2:

    210-220

    99-105

    Zone 3:

    210-220

    99-105

    Zone 4:

    210-220

    99-105

    Crosshead

    220-230

    105-110

     

    Packaging & Availability

    Packaging Type
    Packaging
    • 1,600 pounds (726 Kg) per box.

    Storage & Handling

    Handling
    • To ensure health and safety, Material Safety Data Sheets (MSDS) are available and should be consulted prior to use.
    Storage
    • SUPEROHM® 3748 containers should be stored at temperatures below 50C (120F) in a dry area to avoid massing of pellets. Product is recommended to be used within 12 months.