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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	60.0 MPa	50 mm/min; ISO 527-1/-2
Tensile Strength, Yield	68.0 MPa	50 mm/min; ISO 527-1/-2
Elongation at Break	>= 50 %	Nominal, 50 mm/min; ISO 527-1/-2
	115 %	50 mm/min; ISO 527-1/-2
Elongation at Yield	4.8 %	50 mm/min; ISO 527-1/-2
Tensile Modulus	2600 MPa	1 mm/min; ISO 527-1/-2
Flexural Strength	100 MPa	2 mm/min; ISO 178
Flexural Yield Strength	82.0 MPa @Strain 3.5 %	2 mm/min; ISO 178
Flexural Modulus	2.60 GPa	2 mm/min; ISO 178
Flexural Strain at Yield	5.8 %	2 mm/min; ISO 178
Charpy Impact Unnotched	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
Impact	4500	Puncture - maximum force (N); ISO 6603-2
	5400 @Temperature -30.0 °C	Puncture - maximum force (N); ISO 6603-2
Puncture Energy	50.0 J	ISO 6603-2
	55.0 J @Temperature -30.0 °C	ISO 6603-2

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

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

Processing Properties	Original Value	Comments
Melt Temperature	260 °C	Injection Molding; ISO 294
Mold Temperature	80.0 °C	Injection Molding; ISO 294
Injection Velocity	200 mm/sec	ISO 294

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