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Covestro Makrolon® 3158 Polycarbonate

Category	Polymer , Thermoplastic , Polycarbonate (PC) , Polycarbonate, Optical Grade
Manufacturer	Covestro
Trade Name	Makrolon®
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Covestro Makrolon® 3158 Polycarbonate.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

Key Features:Release agentUnfilledSuitable processing methods:Injection moldingExtrusionBlow moldingInformation provided by Bayer Polymers.As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.

Physical Properties	Metric	English	Comments
Density	1.02 g/cc	0.0368 lb/in³	Melt
	1.20 g/cc	0.0434 lb/in³
Water Absorption	0.30 %	0.30 %
Moisture Absorption at Equilibrium	0.12 %	0.12 %	23°C/50% R.H.
Viscosity Test	64 cm³/g	64 cm³/g	Viscosity Number
Melt Flow	6.0 g/10 min @Load 1.20 kg, Temperature 300 °C	6.0 g/10 min @Load 2.65 lb, Temperature 572 °F

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	65.0 MPa	9430 psi
Elongation at Break	>= 50 %	>= 50 %	Nominal
Elongation at Yield	6.5 %	6.5 %
Tensile Modulus	2.40 GPa	348 ksi
Charpy Impact Unnotched	NB	NB
	NB @Temperature -30.0 °C	NB @Temperature -22.0 °F
Puncture Energy	65.0 J	47.9 ft-lb	Puncture energy +23°C
	70.0 J	51.6 ft-lb	Puncture energy -30°C
Tensile Creep Modulus, 1 hour	2200 MPa	319000 psi
Tensile Creep Modulus, 1000 hours	1900 MPa	276000 psi
Tear Strength, Total	5600 N	1260 lb (f)	Puncture maximum force +23°C

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	60.0 µm/m-°C @Temperature 20.0 °C	33.3 µin/in-°F @Temperature 68.0 °F
CTE, linear, Transverse to Flow	60.0 µm/m-°C @Temperature 20.0 °C	33.3 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	1.70 J/g-°C	0.406 BTU/lb-°F	Melt
Thermal Conductivity	0.173 W/m-K	1.20 BTU-in/hr-ft²-°F	Melt
Deflection Temperature at 0.46 MPa (66 psi)	139 °C	282 °F
Deflection Temperature at 1.8 MPa (264 psi)	127 °C	261 °F
Vicat Softening Point	146 °C	295 °F	50°C/h 50N
Glass Transition Temp, Tg	148 °C	298 °F	10°C/min
Flammability, UL94	HB @Thickness 1.50 mm	HB @Thickness 0.0591 in	UL Recognized
	V-2 @Thickness 0.800 mm	V-2 @Thickness 0.0315 in	UL Recognized
Oxygen Index	28 %	28 %

Optical Properties	Metric	English	Comments
Transmission, Visible	80 %	80 %	Manufacturer states transparent but does not quantify

Electrical Properties	Metric	English
Volume Resistivity	>= 1.00e+13 ohm-cm	>= 1.00e+13 ohm-cm
Surface Resistance	>= 1.00e+15 ohm	>= 1.00e+15 ohm
Dielectric Constant	3.0 @Frequency 1e+6 Hz	3.0 @Frequency 1e+6 Hz
	3.1 @Frequency 100 Hz	3.1 @Frequency 100 Hz
Dielectric Strength	32.0 kV/mm	813 kV/in
Dissipation Factor	0.00050 @Frequency 100 Hz	0.00050 @Frequency 100 Hz
	0.0090 @Frequency 1e+6 Hz	0.0090 @Frequency 1e+6 Hz
Comparative Tracking Index	275 V	275 V

Processing Properties	Metric	English	Comments
Melt Temperature	300 °C	572 °F	Injection Molding
Mold Temperature	80.0 °C	176 °F	Injection Molding
Ejection Temperature	130 °C	266 °F
Injection Velocity	200 mm/sec	7.87 in/sec

Descriptive Properties	Value	Comments
Effective thermal diffusivity	0.1E-6 m²/s	Melt

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