Material Properties
Insulation & Sheath Material Properties Related To Fireproof of Cable

Halogen free
AEI TP519C Thermoplastic high output, easy process HFFR sheathing
Thermoplastic, low-smoke, halogen-free flame retardant compound for data and communication cable

Test	Test method	Unit	Typical value
Physical properties and mechanical properties
Density	BS 2782 Pt. 6 Mtd 620A-D	g/cm3	1.50
Melt flow rate (21.6kgs at 150°C)	AEI Method	g/10min	14
Tensile strength	IEC 60811-1-1	N/mm²	13
Elongation at break	IEC 60811-1-1	%	140
Tear Strength	BS 6469	N/mm	5
Hardness (N)	Shore A	-	90
Typical ageing behaviour after 7 days at 135°C
Tensile strength	IEC 60811-1-2	%Variation	+12
Elongation at break	IEC 60811-1-2	% Variation	-10
Thermo mechanical properties
Hot pressure deformation at 80°C	IEC 60811-3-1	%	15
Cold bend test at -30°C	IEC 60811-1-4		pass
Elongation at break at -30°C	IEC 60811-1-4	%	50 (pass)
Cold impact at -30°C	IEC 60811-1-4		pass
Fire & smoke properties
Oxygen Index	BS ISO 4589-2	%	31
Temperature Index	BS ISO 4589-3	°C	270
Halogen Acid Gas Evolution	IEC 60754-2	%	<0.5
Smoke emission 3m cube test	BS EN 61034-2:2005		pass
Electrical properties
Insulation Constant Ki at 20°C	IEC 60502	MΩ.km	95
Insulation Constant Ki at 90°C	IEC 60502	MΩ.km	0.065
Volume Resistivity at 20°C	IEC 60502	Ohm.cm	1.96 x 1014
Dielectric Strength at 20°C	IEC 80243	kV/mm	19.4
Permittivity at 50Hz at 23°C	IEC 60250		4.65
Fluid resistance
	Time (hrs)	Temperature ° C	% Variation in TS	% Variation in EB
ASTM No2	4	70	18	7
1M NaOH	336	50	45	20
1M HCl	336	50	17	14

Extruder
An extruder with an L/D ratio (length/diameter) of 15-24 and an extruder screw with a compression ratio 1.2:1 to 2.5:1 are recommended.
Extruder temperature conditions
It is important that the melt temperature is not allowed to rise above 170°C.
As a guide the following temperature profile is recommended:-

Zone1	Zone2	Zone3	Zone4	Head	Die
115°C	125°C	135°C	145°C	155°C	160°C

This profile will vary slightly depending on extruder type, head design and output.
Screw water temperature:Depends upon screw design, but should be 30-50°C
Recommended screen pack: 50 (mesh apertures per linear inch) or 300 micron
Colour masterbatches
Addition of approved colour masterbatches, including black, up to a maximum of 1%, has no detrimental effect on the properties.
It is recommended that all masterbatches should be thoroughly dried at 60°C for 8 hours or at 80°C for 4 hours in a de-humidifying drier.
Storage and shelf life
TP519C has an unlimited shelf life. However, the following precautions should be observed:-
• Packaging should remain sealed
• Avoid temperature above 25°C.
• Avoid storage outside and in direct sunlight.

Material Properties Insulation & Sheath Material Properties Related To Fireproof of Cable

Material Properties
Insulation & Sheath Material Properties Related To Fireproof of Cable