Borealis Casico™ FR4820 Natural Low Smoke Zero Halogen Flame Retardant Insulation Compound for Building Energy Cables

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Borealis Casico™ FR4820 Natural Low Smoke Zero Halogen Flame Retardant Insulation Compound for Building Energy Cables (discontinued **)
Categories:	Polymer; Thermoplastic; Polyethylene (PE)
Material Notes:	Casico™ FR4820 is a thermoplastic, low smoke zero halogen (LSZH) flame retardant, UV stabilized, natural insulation compound combining with excellent extrusion properties. It is based on the novel technology, Casico™, containing inorganic filler and a novel char-forming additive which confer flame retardancy with very limited smoke generation. Applications: 70°C rated insulation for building wires (installation cables), flexible cords, and power cables. It can be used in areas sensitive to smoke or corrosive and toxic combustion products. Casico™ FR4820 is stabilized for use in contact with copper. Specifications: Casico™ FR4820 in combination meets these applicable requirements when processed using extrusion practice and testing procedure: EN 50292-2-26; EN 50363-7 TI6; and EN 50363-7 TI7. Information provided by Borealis AG
Key Words:	PE
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Physical Properties	Original Value	Comments

Density	1.15 g/cc	compound; ISO 1872-2/ISO 1183
Water Absorption	0.0087 % @Time 1.21e+6 sec	70°C, .1mg/cm2; IEC 60811-1-3
Melt Flow	0.90 g/10 min @Load 2.16 kg, Temperature 190 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Hardness, Shore D	40	15s; ISO 868
Tensile Strength at Break	<= 2.60 MPa	after aging, 240h, 100°C; or UV aging
	13.0 MPa	50mm/min; IEC 60811-1-1
Elongation at Break	<= 110 %	after aging, 240h, 100°C; or UV aging
	550 %	ISO 527
Flexural Modulus	215 MPa	ISO 178

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+6 ohm-cm	IEC 60093
Dielectric Strength	<= 20.0 kV/mm	IEC 60243
Dielectric Breakdown	36000 V	ISO 6722

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	200 °C	ISO 4589-3
Brittleness Temperature	<= -60.0 °C	ISO 974
Smoke Density	49	NBS 6 min; flaming mode; 76x76x.7mm
	104	NBS 20 min; non-flaming mode; 76x76x.7mm
Oxygen Index	27 %

Processing Properties	Original Value	Comments
Zone 1	160 °C
Zone 2	170 °C
Zone 3	180 °C
Zone 4	190 °C
Die Temperature	190 °C

Descriptive Properties
Average Heat Release, kW/m²	244	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque
CO, kg/dm³	0.023	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque
CO₂, kg/dm³	1.7	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque
Cold Bend (-40°C)	Pass	IEC 60811-1-4
Cold Impact(-40°C)	Pass	IEC 60811-1-4
Corrosivity of Combustion Fumes	1.5	IEC 60754-2
Dielectric Duration	Pass	IEC 60227-2/2.3
Heat Combustion, MJ/dm³	29	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque
High Temperature Pressure Test, %	< 50%	90°C, 4 hours, IEC 60811-1-4
Ignition Time, sec	125	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque
Max Heat Release, kW/m²	400	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque
Smoke Obscuration, m²/dmm³	520	ISO 5660; Cone Calorimeter (heat flux 35 kW/m², 3mm plaque

**
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PBOREA400 / 108659

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