Covestro Makrolon® 1899 Polycarbonate, Impact Grade

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Covestro Makrolon® 1899 Polycarbonate, Impact Grade
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Impact Modified
Material Notes:	MVR (300 °C/1.2 kg) 16 cm³/10 min; special flame retardent system; UL 94V-0/0.75 mm; impact modified; medium viscosity; easy release; vicat softening temperature 50 N; 50 °C/h = 110 °C; injection molding - melt temperature 240 - 280 °C; available in opaque colors only; battery housing As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Metric	English	Comments

Bulk Density	0.640 g/cc	0.0231 lb/in³	pellets; IOS 60
Density	1.20 g/cc	0.0434 lb/in³	ISO 1183
Moisture Absorption at Equilibrium	0.12 %	0.12 %	ISO 62
Water Absorption at Saturation	0.30 %	0.30 %	ISO 62
Linear Mold Shrinkage, Flow	0.0060 cm/cm	0.0060 in/in	60x60x2 mm; 500 bar; ISO 294-4,2577
Linear Mold Shrinkage, Transverse	0.0065 cm/cm	0.0065 in/in	60x60x2 mm; 500 bar; ISO 294-4,2577
Melt Flow	17 g/10 min @Load 1.20 kg, Temperature 300 °C	17 g/10 min @Load 2.65 lb, Temperature 572 °F	ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	60.0 MPa	8700 psi	50 mm/min; ISO 527-1/-2
Tensile Strength, Yield	68.0 MPa	9860 psi	50 mm/min; ISO 527-1/-2
Elongation at Break	>= 50 %	>= 50 %	Nominal, 50 mm/min; ISO 527-1/-2
	115 %	115 %	50 mm/min; ISO 527-1/-2
Elongation at Yield	4.8 %	4.8 %	50 mm/min; ISO 527-1/-2
Tensile Modulus	2.60 GPa	377 ksi	1 mm/min; ISO 527-1/-2
Flexural Strength	100 MPa	14500 psi	2 mm/min; ISO 178
Flexural Yield Strength	82.0 MPa @Strain 3.5 %	11900 psi @Strain 3.5 %	2 mm/min; ISO 178
Flexural Modulus	2.60 GPa	377 ksi	2 mm/min; ISO 178
Flexural Strain at Yield	5.8 %	5.8 %	2 mm/min; ISO 178
Charpy Impact Unnotched	NB	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F	ISO 179/1eU
Impact	4500	4500	Puncture - maximum force (N); ISO 6603-2
	5400 @Temperature -30.0 °C	5400 @Temperature -22.0 °F	Puncture - maximum force (N); ISO 6603-2
Puncture Energy	50.0 J	36.9 ft-lb	ISO 6603-2
	55.0 J @Temperature -30.0 °C	40.6 ft-lb @Temperature -22.0 °F	ISO 6603-2

Electrical Properties	Metric	English	Comments
Comparative Tracking Index	100 V	100 V	CTI M; Solution B; IEC 60112
	250 V	250 V	IEC 60112
	250 V	250 V	Solution A; IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	70.0 µm/m-°C @Temperature 23.0 - 55.0 °C	38.9 µin/in-°F @Temperature 73.4 - 131 °F	ISO 11359-1/-2
CTE, linear, Transverse to Flow	70.0 µm/m-°C @Temperature 23.0 - 55.0 °C	38.9 µin/in-°F @Temperature 73.4 - 131 °F	ISO 11359-1/-2
Deflection Temperature at 0.46 MPa (66 psi)	105 °C	221 °F	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	96.0 °C	205 °F	ISO 75-1/-2
Vicat Softening Point	110 °C	230 °F	50°C/h 50N; ISO 306
UL RTI, Electrical	80.0 °C @Thickness 0.750 mm	176 °F @Thickness 0.0295 in	UL 746B
UL RTI, Mechanical with Impact	80.0 °C @Thickness 0.750 mm	176 °F @Thickness 0.0295 in	UL 746B
UL RTI, Mechanical without Impact	80.0 °C @Thickness 0.750 mm	176 °F @Thickness 0.0295 in	UL 746B
Flammability, UL94	V-0 @Thickness 0.750 mm	V-0 @Thickness 0.0295 in	IEC 60695-11-10
	5VA @Thickness 3.00 mm	5VA @Thickness 0.118 in	IEC 60695-11-20
Flash Point	460 °C	860 °F	ignition; ASTM D1929
	500 °C	932 °F	self ignition; ASTM D1929
Oxygen Index	35 %	35 %	ISO 4589-1/-2
Glow Wire Flammability Index	960 °C @Thickness 1.00 mm	1760 °F @Thickness 0.0394 in	IEC 60695-2-12

Processing Properties	Metric	English	Comments
Melt Temperature	260 °C	500 °F	Injection Molding; ISO 294
Mold Temperature	80.0 °C	176 °F	Injection Molding; ISO 294
Injection Velocity	200 mm/sec	7.87 in/sec	ISO 294

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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