SuperOhm® 3748

Identification & Functionality

Chemical Family

Ethylene-Propylene Copolymers (EPR)

Polymer Name

Ethylene Propylene Copolymer

Technologies

Elastomers

Product Families

Elastomers — Thermoset Elastomers

EP Rubbers (EPDM)

Features & Benefits

Labeling Claims

Halogen-free

Materials Features

Cost Effective,

Crosslinkable,

Excellent Flexibility,

Good Colorability,

Good Electrical Properties,

Good Mechanical Properties,

High Performance

Applications & Uses

Markets

Electrical & Electronics,

Industrial

Applications

Industrial — Oil, Gas & Mining

Exploration & Upstream

Industrial — Power, Water & Utilities

Electrical Protection,

Power & Utilities

Electrical & Electronics — Wire & Cable

Jacketing & Insulation,

Power Transmission & Distribution

Cure Method

Air Dry,

Chemical Cure

Plastics & Elastomers End Uses

Cables,

Industrial Cable Insulation,

Industrial Cable Jacketing,

Medium Voltage Insulation,

Wires

Plastics & Elastomers Processing Methods

Extrusion

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

Orange

Physical Form

Pellets,

Solid

Mechanical Properties

	Value	Units	Test Method / Conditions
Elongation	450	%	-
Specific Gravity	1.13 - 1.17	-	-
Tensile Strength	1700	psi	-

Thermal Properties

	Value	Units	Test Method / Conditions
Retained Elongation (7 Days in 136°C Air Oven)	90	%	-
Retained Tensile (7 Days in 136°C Air Oven)	90	%	-

Electrical Properties

	Value	Units	Test Method / Conditions
Dielectric Constant	2.6	-	-
Volume Resistivity	1.0 X 10^16	Ohm-cm	-
Dielectric Strength	900	V/mil	-

Regulatory & Compliance

Chemical Inventories

TSCA (USA)

Quality Standards

ISO 6722 Class A,

SAE J1128,

UL 1072

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

Boxes

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.