Knowde Enhanced TDS
Identification & Functionality
- Additives Included
- Chemical Family
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Materials Features
- Key Characteristics
Low density, moisture curable polyethylene compound, for low voltage building wire applications (UL styles XHHW-2, RHW-2, RHH, SIS, USE-2). Also CSA listed for styles RW-90 and RWU-90 (-40ºC rated).
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
Properties
- Physical Form
- Mechanical Properties
- Physical Properties
| Value | Units | Test Method / Conditions | |
| Crushing Test | 1400 | lbs | UL 1581 / UL 2556 |
| Elongation Under Load (Hot Elongation Test: 15 min / 150°C, 0.2 N/mm² Load) | 40 | % | SACO AEI DWI-QA-4007 based on ICEA T-28-562 |
| Deformation | 1 | % | UL 1581 UL 2556 |
| Low Temperature Brittleness Point (LTBP) | max. -75 | °C | ASTM D746 |
| Dielectric Breakdown (After Glancing Impact) | 33 | kV | UL 1581 UL 2556 |
| Dielectric Breakdown (at Initial) | 35 | kV | UL 1581 UL 2556 |
| Dielectric Constant (1MHz - 100MHz Range) | 2.34 | — | ASTM D150 |
| Dissipation Factor (at 1 MHz) | 0.0012 | — | ASTM D150 |
| Dissipation Factor (at 100 KHz) | 0.0008 | — | ASTM D150 |
| Elongation After Exposure | 430 | % | UL 1581 UL 2556 |
| Elongation at Break | 375 | % | UL 1581 UL 2556 |
| Elongation at Break (After Gasoline: 30 Days at 23°C) | 350 | % | UL 1581 UL 2556 |
| Elongation at Break (After Oil: 60 Days at 75°C) | 330 | % | UL 1581 UL 2556 |
| Elongation at Break (After Thermal Aging: 7 Days at 121°C) | 350 | % | UL 1581 UL 2556 |
| Limiting Oxygen Index | 23.5 | % | ASTM D2863 |
| Original Elongation | 440 | % | UL 1581 UL 2556 |
| Original Tensile Strength (Weatherometer: 300 Hours Exposure) | 2650 | psi | UL 1581 UL 2556 |
| Relative Permittivity (at 90°C / 60Hz) | 2.5 | — | UL 1581 / UL 2556 |
| Tensile Strength After Exposure | 2870 | psi | UL 1581 UL 2556 |
| Tensile Strength at Break | 2000 | psi | UL1581 UL 2556 |
| Tensile Strength at Break (After Gasoline: 30 Days at 23°C) | 1825 | psi | UL 1581 UL 2556 |
| Tensile Strength at Break (After Oil: 60 Days at 75°C) | 1850 | psi | UL 1581 UL 2556 |
| Tensile Strength at Break (After Thermal Aging: 7 Days at 121°C) | 1950 | psi | UL 1581 UL 2556 |
| Tensile Strength at Yield | 1800 | psi | UL 1581 UL 2556 |
| Value | Units | Test Method / Conditions | |
| Degree of Cross-linking | 67 | % | ASTM D2765 |
| Melt Flow Rate (at 190°C / 2.16kg) | 0.8 | g/10min | ASTM D1238 |
| Specific Gravity (at 23°C) | 1.01 | g/cm³ | ASTM D792 |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Processing
The pre-grafted base PEXIDAN® A-3001 must be added with type CAT-005FR flame retardant catalyst masterbatch in the proportion 80:20 by weight. We strongly suggest dosing the two components directly in the throat of the extruder using a gravimetric or loss-inweight feeder. In order to prevent scorching the grafted compound and the catalyst masterbatch must be stored separately and mixed just prior to consumption.
PEXIDAN® X/T can be processed with PE single screw extruders having proper temperature control and a good mixing screw (2.5:1 ratio at least).The following temperature profile is suggested:
Barrel Zones Head Die Celsius 154°-171°C 185°C 185°C Fahrenheit 310°-340°F 365°F 365°F These conditions may depend on the equipment being used. It is recommended using conveyors and tools shaped in order to prevent stagnation in the head. In case of prolonged shutdown, purge the extruder with LDPE.
Curing - Curing can be done by immersion in hot water at 70°-95°C, by exposure to low pressure steam, or ambient atmospheric moisture. In all cases curing time depends on wall thickness, temperature, relative humidity and quantity of wire on the reel.
Color Masterbatch - A wide range of commonly used color masterbatches based on LDPE are available. A use level of 1.5% by weight should give an acceptable color but this will be dependent upon the concentrate itself. Levels of concentrates should be kept to a minimum because they can detract from performance. It is recommended that the catalyst and color masterbatches be dried prior to usage 4-6 hours at 60°C (150°F) using a desiccant dryer.
Packaging & Availability
- Packaging Information
The physical form of both PEXIDAN® A-3001 and CAT-005FR is free-flowing pellets, and are available in 1500- lb (680-kg) and 2000-lb (907-kg) gaylords respectively, or in 300-lb (136-kg) fiber drums.
Storage & Handling
- Storage and Handling
Due to the moisture sensitivity of PEXIDAN®, SACO AEI Polymers suggests that the following points should be considered when storing the materials:
- Packaging should remain sealed
- Avoid temperature above 30ºC
- Avoid storage outside and in direct sunlight
- Use within 8 hours of opening packaging