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Makrolon? 1248

Manufacturer: Covestro
Produced At: Europe / China
Product Category: Polycarbonate（PC）
Product No: Makrolon 1248
Product Quantity: 25KG / BAG
Product Features: Food Contact Acceptable、Impact Modified、Medium Viscosity

Product information

Makrolon? 1248

Polycarbonate

Covestro - Polycarbonates

Product Description:

MVR (300 °C/1.2 kg) 7.0 cm3/10 min; food contact quality; medium viscosity; impact modified; injection molding - melt temperature 280 - 320 °C; available in light colors only

Additive	Impact Modifier
Features	Food Contact Acceptable，Impact Modified，Medium Viscosity
RoHS Compliance	RoHS Compliant
Appearance	Colors Available
Processing Method	Injection Molding

Physical	Nominal Value	Unit	Test Method
Density (73°F)	1.20	g/cm3	ISO 1183
Apparent (Bulk) Density 3	0.64	g/cm3	ISO 60
Melt Mass-Flow Rate (MFR) (300°C/1.2 kg)	7.5	g/10 min	ISO 1133
Melt Volume-Flow Rate (MVR) (300°C/1.2 kg)	0.427	in3/10min	ISO 1133
Molding Shrinkage
Across Flow	0.60 to 0.80	%	ISO 2577
Flow	0.60 to 0.80	%	ISO 2577
Across Flow : 0.0787 in 4	0.80	%	ISO 294-4
Flow : 0.0787 in 4	0.75	%	ISO 294-4
Water Absorption			ISO 62
Saturation, 73°F	0.40	%
Equilibrium, 73°F, 50% RH	0.12	%
Hardness	Nominal Value	Unit	Test Method
Ball Indentation Hardness	15700	psi	ISO 2039-1

Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus (73°F)	326000	psi	ISO 527-2/1
Tensile Stress			ISO 527-2/50
Yield, 73°F	8850	psi
Break, 73°F	10200	psi
Tensile Strain			ISO 527-2/50
Yield, 73°F	6.0	%
Break, 73°F	130	%
Nominal Tensile Strain at Break (73°F)	> 50	%	ISO 527-2/50
Flexural Modulus 5 (73°F)	326000	psi	ISO 178
Flexural Stress 5			ISO 178
73°F	12800	psi
3.5% Strain, 73°F	9860	psi
Flexural Strain at Flexural Strength 6 (73°F)	6.8	%	ISO 178
Impact	Nominal Value	Unit	Test Method
Charpy Notched Impact Strength 7			ISO 7391
-22°F, Partial Break	29	ft·lb/in2
73°F, Partial Break	33	ft·lb/in2
Charpy Unnotched Impact Strength			ISO 179/1eU
-76°F	No Break
-22°F	No Break
73°F	No Break
Notched Izod Impact Strength 8			ISO 7391
-22°F, Complete Break	14	ft·lb/in2
73°F, Partial Break	31	ft·lb/in2
Multi-Axial Instrumented Impact Energy			ISO 6603-2
-22°F	44.3	ft·lb
73°F	40.6	ft·lb
Multi-Axial Instrumented Impact Peak Force			ISO 6603-2
-22°F	1370	lbf
73°F	1170	lbf

Thermal	Nominal Value	Unit	Test Method
Heat Deflection Temperature
66 psi, Unannealed	282	°F	ISO 75-2/B
264 psi, Unannealed	257	°F	ISO 75-2/A
Glass Transition Temperature 9	298	°F	ISO 11357-2
Vicat Softening Temperature
--	295	°F	ISO 306/B50
--	298	°F	ISO 306/B120
Ball Pressure Test (280°F)	Pass		IEC 60695-10-2
CLTE			ISO 11359-2
Flow : 73 to 131°F	3.9E-5	in/in/°F
Transverse : 73 to 131°F	3.9E-5	in/in/°F
Thermal Conductivity 10 (73°F)	1.4	Btu·in/hr/ft2/°F	ISO 8302
Halving Interval - Tensile Strength (39.4 mil)	113.0	°F	IEC 60216
Temperature Index - Tensile Impact Strengh 11(39.4 mil)	851	°F	IEC 60216

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Makrolon? 1248

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