Visico™ LE4421/LE4432

About
Visico LE4421/LE4432 is a scorch retardant, moisture-crosslinking polyethylene compound for low voltage insulation The combination of a VISICO base material, LE4421, and a black tin catalyst masterbatch, LE4432, provides a highly scorch retardant compound with excellent thermal stability. LE4421/LE4432 contains a patented scorch retardant additive (SRA) that increases the processing window for a moisture crosslinking compound and minimizes the tendency for premature crosslinking in the extruder, head or die. LE4432 should be added to L E4421 directly in the extruder hopper by dry blending at a ratio of 10 parts LE4432 to 90 parts LE4421. LE4432 also provides, in addition to catalyst, a stabilization package containing suitable antioxidants, a metal deactivator and a 25% loading of a fine particle size carbon black for UV weather resistance. Properly mixed, during the extrusion process, LE4421/LE4432 exhibits excellent thermal stability to oxidation. The final insulation or jacketing will also contain 2.5% of a suitable carbon black to ensure satisfactory UV weathering stability. Application LE4421.LE4432 is recommended for use as insulation for low voltage control cables and power cables up to 6 kv in rating. Specifications Visico LE4421/LE4432 can meet a variety of international specifications and standards when produced using sound commercial extrusion practice. NBN C 33-321 Canadian Standards Association C22.2 No. 1790-00-Airport Series Lighting Cables and C22.2 No. 38 Cable Type RW- 90 Outdoor ASTM D 2655 EC 502 NF C32-090 HD 603 S1 NF C33-210 Underwriters Laboratories Standards 854 for types USE and USE-2&&

About

Visico LE4421/LE4432 is a scorch retardant, moisture-crosslinking polyethylene compound for low voltage insulation The combination of a VISICO base material, LE4421, and a black tin catalyst masterbatch, LE4432, provides a highly scorch retardant compound with excellent thermal stability. LE4421/LE4432 contains a patented scorch retardant additive (SRA) that increases the processing window for a moisture crosslinking compound and minimizes the tendency for premature crosslinking in the extruder, head or die. LE4432 should be added to L E4421 directly in the extruder hopper by dry blending at a ratio of 10 parts LE4432 to 90 parts LE4421. LE4432 also provides, in addition to catalyst, a stabilization package containing suitable antioxidants, a metal deactivator and a 25% loading of a fine particle size carbon black for UV weather resistance. Properly mixed, during the extrusion process, LE4421/LE4432 exhibits excellent thermal stability to oxidation. The final insulation or jacketing will also contain 2.5% of a suitable carbon black to ensure satisfactory UV weathering stability. Application LE4421.LE4432 is recommended for use as insulation for low voltage control cables and power cables up to 6 kv in rating. Specifications Visico LE4421/LE4432 can meet a variety of international specifications and standards when produced using sound commercial extrusion practice. NBN C 33-321 Canadian Standards Association C22.2 No. 1790-00-Airport Series Lighting Cables and C22.2 No. 38 Cable Type RW- 90 Outdoor ASTM D 2655 EC 502 NF C32-090 HD 603 S1 NF C33-210 Underwriters Laboratories Standards 854 for types USE and USE-2&&

Product Description
Supplier	Borealis AG
Generic	聚烯烃，共挤薄膜用聚烯烃
Material Status	Commercial: Active
Features	Weather resistance is good,Crosslinked,Inoxidizability,Heat Stabilized
Availabilitys	Africa & Middle East ,North America,Latin America,Asia Pacific,Europe
Process Methods	Extrusion

Technical Data
PHYSICAL	Nominal value	Unit	Test method
Density			ASTM D792
—	0.923	g/cm³	ASTM D792
—	1.05	g/cm³	ASTM D792
Melt Flow Rate	0.90	g/10min	ASTM D1238

elastic body	Nominal value	Unit	Test method
tensile strength
yield	15.0	MPa	ASTM D412
Tensile strain
fracture	300	%	ASTM D412

THERMAL	Nominal value	Unit	Test method
High temperature creep			ICEA T-28-562
150℃	< 5.0	%	ICEA T-28-562
150℃	< 50	%	ICEA T-28-562

Aging performance	Nominal value	Unit	Test method
Retention rate of tensile performance
121℃	> 90	%

Electrical performance	Nominal value	Unit	Test method
Volume resistivity	1.0E+16	ohms·cm	ASTM D257
Dielectric strength	> 22	kV/mm
Dielectric constant
23 ℃，60 Hz	2.30		ASTM D2520
Dissipation factor
23℃，60 Hz	5.0E-4		ASTM D150

Process Conditions
Extrusion	Nominal value	Unit	Test method
Barrel 1 zone temperature	146	°C
Barrel 2 zone temperature	163	°C
Barrel 3 zone temperature	171	°C
Barrel 4 zone temperature	171	°C
Nozzle temperature	177	°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. Base Resin
3. Masterbatch
4. 0.20 MPa
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