Makrolon® 2458

MVR (300 °C/1.2 kg) 19 cm³/10 min; medical devices; suitable for ETO and steam sterilization at 121 °C; biocompatible according to many ISO 10993-1 test requirements; low viscosity; easy release

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Technical Properties & Datasheets

Property Name	Standard	Unit	Value
Barrel Temperatures - Front	-	°C	280 - 290
Barrel Temperatures - Middle	-	°C	270 - 280
Barrel Temperatures - Nozzle	-	°C	290 - 300
Barrel Temperatures - Rear	-	°C	250 - 260
Dry Air Drying Temperature	-	°C	120
Dry Air Drying Time	-	h	2 - 3
Hold Pressure (% of injection pressure)	-	%	50 - 75
Melt temperatures	-	°C	280 - 320
Moisture Content max. (%)	-	%	<= 0,02
Mold Temperatures	-	°C	80 - 120
Peripheral Screw Speed	-	m/s	0.05 - 0.2
Plastic Back Pressure (specific)	-	bar	50 - 150
Shot-to-Cylinder Size	-	%	30 - 70
Standard Melt temperature	-	°C	300
Vent Depth	-	mm	0.025 - 0.075

Property Name	Standard	Test condition	Unit	Value
Coefficient of linear thermal expansion, normal	ISO 11359-1,-2	23 to 55 °C	10^-4^/K	0.65
Coefficient of linear thermal expansion, parallel	ISO 11359-1,-2	23 to 55 °C	10^-4^/K	0.65
Flash ignition temperature	ASTM D1929		°C	480
Glass transition temperature	ISO 11357-1,-2	10 °C/min	°C	146
Oxygen index	ISO 4589-2	Method A	%	28
Resistance to heat (ball pressure test)	IEC 60695-10-2		°C	138
Self ignition temperature	ASTM D1929		°C	550
Temperature of deflection under load	ISO 75-1,-2	0.45 MPa	°C	139
Temperature of deflection under load	ISO 75-1,-2	1.80 MPa	°C	125
Thermal conductivity, through-plane	ISO 8302	23 °C; 50 % r. h.	W/(m*K)	0.2
Vicat softening temperature	ISO 306	50 N; 120 °C/h	°C	146
Vicat softening temperature	ISO 306	50 N; 50 °C/h	°C	145

Property Name	Standard	Test condition	Unit	Value
Ball indentation hardness	ISO 2039-1		N/mm²	115
Charpy impact strength	ISO 179/1eU	-60 °C	kJ/m²	N
Charpy impact strength	ISO 179/1eU	23 °C	kJ/m²	N
Charpy notched impact strength	ISO 21305/based on ISO 179/1eA	-30 °C/ 3 mm	kJ/m²	14C
Charpy notched impact strength	ISO 21305/based on ISO 179/1eA	23 °C/ 3 mm	kJ/m²	65P
Flexural modulus	ISO 178	2 mm/min	MPa	2350
Flexural strain at flexural strength	ISO 178	2 mm/min	%	7.1
Flexural strength	ISO 178	2 mm/min	MPa	97
Flexural stress at 3.5 % strain	ISO 178	2 mm/min	MPa	73
Izod notched impact strength	ISO 21305/based on ISO 180/A	23 °C/ 3 mm	kJ/m²	65P
Izod notched impact strength	ISO 21305/based on ISO 180/A	-30 °C/ 3 mm	kJ/m²	15C
Nominal strain at break	ISO 527-1,-2	50 mm/min	%	> 50
Puncture energy	ISO 6603-2	-30 °C	J	65
Puncture energy	ISO 6603-2	23 °C	J	55
Puncture impact properties - maximum force	ISO 6603-2	-30 °C	N	6000
Puncture impact properties - maximum force	ISO 6603-2	23 °C	N	5100
Strain at break	b.o. ISO 527-1,-2	50 mm/min	%	130
Stress at break	ISO 527-1,-2	50 mm/min	MPa	70
Tensile creep modulus	ISO 899-1	1 h	MPa	2200
Tensile creep modulus	ISO 899-1	1000 h	MPa	1900
Tensile modulus	ISO 527-1,-2	1 mm/min	MPa	2400
Yield strain	ISO 527-1,-2	50 mm/min	%	6.1
Yield stress	ISO 527-1,-2	50 mm/min	MPa	65

Property Name	Standard	Test condition	Unit	Value
Haze for transparent materials	ISO 14782	3 mm	%	< 0.8
Luminous transmittance (clear transparent materials)	ISO 13468-2	1 mm	%	89
Luminous transmittance (clear transparent materials)	ISO 13468-2	2 mm	%	89
Luminous transmittance (clear transparent materials)	ISO 13468-2	4 mm	%	87
Luminous transmittance (clear transparent materials)	ISO 13468-2	3 mm	%	88
Refractive index	ISO 489	Procedure A		1.586

Property Name	Standard	Test condition	Unit	Value
Melt mass-flow rate	ISO 1133	300 °C/ 1.2 kg	g/10 min	20
Melt volume-flow rate	ISO 1133	300 °C/ 1.2 kg	cm³/10 min	19
Molding shrinkage, normal	ISO 294-4	60x60x2 mm/ 500 bar	%	0.7
Molding shrinkage, parallel	ISO 294-4	60x60x2 mm/ 500 bar	%	0.65
Molding shrinkage, parallel/normal	b.o. ISO 2577	Value range based on general practical experience	%	0.5 - 0.7

Property Name	Standard	Test condition	Unit	Value
Comparative tracking index CTI	IEC 60112	Solution A	Rating	250
Dissipation factor	IEC 60250	1 MHz	10^-4^	90
Dissipation factor	IEC 60250	100 Hz	10^-4^	5
Electrical strength	IEC 60243-1	1 mm	kV/mm	34
Relative permittivity	IEC 60250	1 MHz		3.0
Relative permittivity	IEC 60250	100 Hz		3.1
Surface resistivity	IEC 60093		Ohm	1E16
Volume resistivity	IEC 60093		Ohm*m	1E14

Property Name	Standard	Unit	Value
Injection molding - Injection velocity	ISO 294	mm/s	200
Injection molding - Melt temperature	ISO 294	°C	280
Injection molding - Mold temperature	ISO 294	°C	80

Property Name	Standard	Test condition	Unit	Value
Bulk density	ISO 60	Pellets	kg/m³	660
Density	ISO 1183-1		kg/m³	1200
Water absorption (equilibrium value)	ISO 62	23 °C; 50 % r. h.	%	0.12
Water absorption (saturation value)	ISO 62	Water at 23 °C	%	0.3

Downloads

Technical Data Sheet: Download
Safety Data Sheet No direct download available, please visit www.productsafetyfirst.covestro.com: Download
Secant modulus - Strain Makrolon® 2458 (Multipoint Data Sheet) Sekantenmodul-Dehnung Makrolon® 2458 (Multipoint Data Sheet): Download
Specific Volume-Temperature (pvT) Makrolon® 2458 (Multipoint Data Sheet) Spezifisches Volumen-Temperatur (pvT) Makrolon® 2458 (Multipoint Data Sheet): Download
Stress-Strain Makrolon® 2458 (Multipoint Data Sheet) Spannung-Dehnung Makrolon® 2458 (Multipoint Data Sheet): Download
Viscosity Shear Rate Makrolon® 2458 (Multipoint Data Sheet) Viskosität Schergeschwindigkeit Makrolon® 2458 (Multipoint Data Sheet): Download

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Makrolon® 2458

About

Product Types

Material

General Characterization

Storage Conditions

Sampling

Packaging Type

Technical Properties & Datasheets

Downloads

Related topics

Do you want to know more about Makrolon® 2458? Get in touch with our experts!

Do you want to know more about Makrolon® 2458?
Get in touch with our experts!