PEXIDAN® V/T is a low density flame-retardant XLPE system curable by moisture and consists of a silanegrafted base compound A-3001 and a flame-retardant catalyst masterbatch CAT-010FR. Mixed and extruded in the proper proportions (50/50), the two components result in a material that is curable by exposure to hot water. PEXIDAN® V/T is halogenated but is RoHS-compliant.

Polymer Name: Low Density Polyethylene Compound (LDPE Compound)

Additives Included: Flame Retardant

Melt Flow Index: 0.8 - 0.8 g/10 min

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Additives Included
Plastics & Elastomers Functions
Technologies

Features & Benefits

Key Characteristics

Low density, moisture curable polyethylene system, for low voltage building wire, control cable and cable tray applications (UL styles SIS, XHH, XHHW, XHHW-2, RHH, RHW, and RHW-2 VW-1). Also CSA listed for RW-90 and CIC (-40°C rated).

Applications & Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Degree of Cross-linking60%ASTM D2765
Melt Flow Rate (at 190°C / 2.16kg)0.8g/10minASTM D1238
Specific Gravity (at 23°C)1.3g/cm³ASTM D792
Mechanical Properties
ValueUnitsTest Method / Conditions
Crushing Test1275lbsUL 1581 / UL 2556
Deformation1%UL 1581 UL 2556
Elongation Under Load (Hot Elongation Test: 15 at 150°C, 0.2 N/mm² Load)50%SACO AEI DWI-QA-4007 based on ICEA T-28-562
Dielectric Breakdown (After Glancing Impact)37%UL 1581 UL 2556
Low Temperature Brittleness Point (LTBP)max. -45°CASTM D746
Dielectric Breakdown (at Initial)42kVUL 1581 UL 2556
Elongation at Break275%UL 1581 UL 2556
Elongation at Break (After Gasoline: 30 Days at 23°C)250%UL 1581 UL 2556
Elongation at Break (After Oil: 60 Days at 75°C)300%UL 1581 UL 2556
Elongation at Break (After Thermal Aging: 7 Days at 121°C)225%UL 1581 UL 2556
Insulation Resistance (After 12 Weeks at 90°C)29000Mꭥ-1000ft.UL 1581 UL 2556
Insulation Resistance (at 15°C)34000Mꭥ-1000ft.UL 1581 UL 2556
Insulation Resistance (at 90°C)25000Mꭥ-1000ft.UL 1581 UL 2556
Limiting Oxygen Index27%ASTM D2863
Relative Permittivity (at 90°C)376%UL 1581 / UL 2556
Tensile Strength at Break1850psiUL1581 UL 2556
Tensile Strength at Break (After Gasoline: 30 Days at 23°C)1750psiUL 1581 UL 2556
Tensile Strength at Break (After Oil: 60 Days at 75°C)1840psiUL 1581 UL 2556
Tensile Strength at Break (After Thermal Aging: 7 Days at 121°C)1700psiUL 1581 UL 2556
Tensile Strength at Yield1600psiUL 1581 UL 2556

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Processing

The pre-grafted base PEXIDAN® A-3001 must be added with type CAT-010FR flame retardant catalyst masterbatch in the proportion 50:50 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® V/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

Screw Design - Neutral 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, or by exposure to low pressure steam. 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-010FR is free flowing pellets, 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:

Other precautions are:

  • Packaging should remain sealed
  • Avoid temperature above 30ºC
  • Avoid storage outside and in direct sunlight
  • Use within 8 hours of opening packaging