Visico™ LE4421/LE4460/ LE4437

Category:	PE, Unspecified , Polyethylene
Manufacturer:	Borealis AG
Trademark:	Visico™
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	zt7NTL_Visico-LE4421-LE4460-LE4437.pdf
PRICE:	Order Products email sales@su-jiao.com

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Message
Visico LE4421/LE4460/LE4437 is a scorch retardant, moisture-crosslinking polyethylene compound for low voltage insulation LE4421/LE4460/LE4437 is a natural, moisture-induced crosslinking polyethylene compound that is designed for use as low voltage wire insulation and jacketing. The combination of a VISICO LE4421 base resin, along with the LE4460 brominated flame retardant masterbatch and the LE4437 catalyst, provides a highly scorch retardant compound with excellent thermal stability and good retardant flame properties. LE4421/LE4460/LE4437 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. A finished compound that is composed of 75 parts of LE4421 mixed with 20 parts of LE4460 and 5 parts of LE4437 is recognized by Underwriters Laboratories as VISICO HORIZONTAL. VISICO HORIZONTAL is designed to reduce normal PE flame spread characteristics and achieve an HB-1 flame rating on 14 AWG wires and larger. LE4437 also provides, in addition to catalyst, a stabilization package containing suitable antioxidants, a metal passivator and a metal deactivator. Properly mixed, during the extrusion process, LE4421/LE4460/LE4437 exhibits excellent thermal stability to oxidation. LE4421/LE4460/LE4437 is readily pigmented to a variety of colors using standard wire & cable color concentrates designed for thermoplastic or crosslinked polyethylene. UV weather resistance is obtained by the addition of a suitable carbon black or UV additive. Using Visico LE4432 in place of LE4437 combines a tin catalyst along with the proper carbon black to provide a black, UV resistant, moisture crosslinking cable insulation.

Message

Visico LE4421/LE4460/LE4437 is a scorch retardant, moisture-crosslinking polyethylene compound for low voltage insulation

LE4421/LE4460/LE4437 is a natural, moisture-induced crosslinking polyethylene compound that is designed for use as low voltage wire insulation and jacketing. The combination of a VISICO LE4421 base resin, along with the LE4460 brominated flame retardant masterbatch and the LE4437 catalyst, provides a highly scorch retardant compound with excellent thermal stability and good retardant flame properties. LE4421/LE4460/LE4437 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.

A finished compound that is composed of 75 parts of LE4421 mixed with 20 parts of LE4460 and 5 parts of LE4437 is recognized by Underwriters Laboratories as VISICO HORIZONTAL. VISICO HORIZONTAL is designed to reduce normal PE flame spread characteristics and achieve an HB-1 flame rating on 14 AWG wires and larger. LE4437 also provides, in addition to catalyst, a stabilization package containing suitable antioxidants, a metal passivator and a metal deactivator. Properly mixed, during the extrusion process, LE4421/LE4460/LE4437 exhibits excellent thermal stability to oxidation.

LE4421/LE4460/LE4437 is readily pigmented to a variety of colors using standard wire & cable color concentrates designed for thermoplastic or crosslinked polyethylene. UV weather resistance is obtained by the addition of a suitable carbon black or UV additive. Using Visico LE4432 in place of LE4437 combines a tin catalyst along with the proper carbon black to provide a black, UV resistant, moisture crosslinking cable insulation.

General Information
Features	Flame Retardant Good Thermal Stability Good UV Resistance
Uses	Cable Jacketing Wire & Cable Applications Wire Jacketing
Agency Ratings	ASTM D 2655 EC 502 HD 603 S1 NBN C 33-321 NF C 33-210 UL 44 UL 854

Physical	Nominal Value	Unit	Test Method
Specific Gravity			ASTM D792
Base Resin	0.923	g/cm³
Yellow	0.941	g/cm³
-- ¹	2.00	g/cm³
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)	0.90	g/10 min	ASTM D1238

Elastomers	Nominal Value	Unit	Test Method
Tensile Strength (Yield)	16.5	MPa	ASTM D412
Tensile Elongation (Break)	300	%	ASTM D412

Aging	Nominal Value	Unit	Test Method
Mechanical Properties After Aging in Air Oven, 121°C, 168 hr (Change in Tensile Strength)	< -10	%	IEC 60811

Thermal	Nominal Value	Unit	Test Method
Hot Set ²			ICEA T-28-562
Elongation under load : 150°C	< 50	%
Permanent deformation : 150°C	< 5.0	%

Additional Information	Nominal Value
Horizontal Flame Test ³	PASS

Electrical	Nominal Value	Unit	Test Method
Volume Resistivity	1.0E+16	ohms·cm	ASTM D257
Dielectric Strength	> 22	kV/mm	ASTM D149
Dielectric Constant (60 Hz)	2.50		ASTM D150
Dissipation Factor (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 .	Masterbatch
2 .	0.20 MPa
3 .	14 AWG-30 mil

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