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Visico™ LE4421/LE4432

Category:	Polyolefin, Unspecified , Polyolefin
Manufacturer:	Borealis AG
Trademark:	Visico™
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	4hofYP_Visico-LE4421-LE4432.pdf
PRICE:	Order Products email sales@su-jiao.com

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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.

LE4421.LE4432 is recommended for use as insulation for low voltage control cables and power cables up to 6 kv in rating.

Visico LE4421/LE4432 can meet a variety of international specifications and standards when produced using sound commercial extrusion practice.

NBN C 33-321

ASTM D 2655

EC 502

NF C32-090

NF C33-210

Underwriters Laboratories Standards 854 for types USE and USE-2

Canadian Standards Association C22.2 No. 1790-00-Airport Series Lighting Cables and C22.2 No. 38 Cable Type RW-90 Outdoor

HD 603 S1

General Information
Additive	Antioxidant Carbon Black (3%) Metal Deactivator Scorch Resistant UV Stabilizer
Features	Antioxidant Crosslinkable Good Thermal Stability Good UV Resistance Good Weather Resistance Oxidation Resistant
Uses	Cable Jacketing Low Voltage Insulation Power Cable Jacketing
Wire Types	RW-90 USE USE-2
Agency Ratings	ASTM D 2655 CSA C-22.2 No. 1790-00 CSA C-22.2 No. 38 DIN VDE 0207, 2XI1 HD 603 S1 NFC 32-090 NFC 33-210 UL 854
Forms	Pellets
Processing Method	Extrusion

Physical	Nominal Value	Unit	Test Method
Specific Gravity			ASTM D792
-- ¹	0.923	g/cm³
-- ²	1.05	g/cm³
Melt Mass-Flow Rate (MFR) ³	0.90	g/10 min	ASTM D1238

Elastomers	Nominal Value	Unit	Test Method
Tensile Strength (Yield)	15.0	MPa	ASTM D412
Tensile Elongation (Break)	300	%	ASTM D412

Aging	Nominal Value	Unit
Retention of Tensile Properties (121°C) ⁴	> 90	%

Thermal	Nominal Value	Unit	Test Method
Hot Creep			ICEA T-28-562
150°C ⁵	< 5.0	%
150°C ⁶	< 50	%

Electrical	Nominal Value	Unit	Test Method
Volume Resistivity	1.0E+16	ohms·cm	ASTM D257
Dielectric Strength	> 22	kV/mm
Dielectric Constant (23°C, 60 Hz)	2.30		ASTM D2520
Dissipation Factor (23°C, 60 Hz)	5.0E-4		ASTM D150

Extrusion	Nominal Value	Unit
Cylinder Zone 1 Temp.	146	°C
Cylinder Zone 2 Temp.	163	°C
Cylinder Zone 3 Temp.	171	°C
Cylinder Zone 4 Temp.	171	°C
Die Temperature	177	°C

Note Message
1 .	LE4421
2 .	LE4432
3 .	LE4421
4 .	After Ageing 7 d
5 .	Permanent deformation, 0.20 MPa
6 .	Elongation under load, 0.20 MPa

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