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Covestro Makrolon® 8325 Polycarbonate

Category	Polymer , Thermoplastic , Polycarbonate (PC) , Polycarbonate, 20% Glass Filled
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® 8325 Polycarbonate.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

High viscosity injection molding and extrusion grade with 20% standard glass fibers and easy mold release, high strength and stiffness.Information provided by Bayer.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	1.35 g/cc	0.0488 lb/in³
Water Absorption	0.29 %	0.29 %	Saturation in water
Moisture Absorption at Equilibrium	0.12 %	0.12 %	Equilibrium at 50% RH
Water Absorption at Saturation	0.29 %	0.29 %
Linear Mold Shrinkage	0.0030 - 0.0040 cm/cm	0.0030 - 0.0040 in/in	ASTM D955
Melt Flow	3.0 g/10 min @Load 1.20 kg, Temperature 300 °C	3.0 g/10 min @Load 2.65 lb, Temperature 572 °F

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	81	81	ASTM D785
Tensile Strength, Ultimate	103 MPa	14900 psi	ASTM D638
Elongation at Break	5.0 %	5.0 %	ASTM D638
Tensile Modulus	6.00 GPa	870 ksi
Flexural Yield Strength	134 MPa	19400 psi	at 5% strain; ASTM D790
Flexural Modulus	5.50 GPa	798 ksi	ASTM D790
Izod Impact, Notched	1.60 J/cm @Thickness 3.20 mm	3.00 ft-lb/in @Thickness 0.126 in	ASTM D256
Charpy Impact Unnotched	4.00 J/cm²	19.0 ft-lb/in²
Tensile Creep Modulus, 1 hour	10100 MPa	1.46e+6 psi
Tensile Creep Modulus, 1000 hours	9600 MPa	1.39e+6 psi

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	30.0 µm/m-°C @Temperature 20.0 °C	16.7 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	1.13 J/g-°C	0.270 BTU/lb-°F	ASTM D2766
Thermal Conductivity	0.220 W/m-K	1.53 BTU-in/hr-ft²-°F	ASTM C177
Deflection Temperature at 0.46 MPa (66 psi)	145 °C	293 °F
Deflection Temperature at 1.8 MPa (264 psi)	138 °C	280 °F
Vicat Softening Point	149 °C	300 °F
Glass Transition Temp, Tg	148 °C	298 °F
UL RTI, Electrical	75.0 °C	167 °F
UL RTI, Mechanical with Impact	75.0 °C	167 °F
UL RTI, Mechanical without Impact	75.0 °C	167 °F
Flammability, UL94	V-1 @Thickness 1.60 mm	V-1 @Thickness 0.0630 in
Oxygen Index	32 %	32 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm
Surface Resistance	1.00e+14 ohm	1.00e+14 ohm
Dielectric Constant	3.2 @Frequency 100 Hz	3.2 @Frequency 100 Hz
	3.2 @Frequency 1e+6 Hz	3.2 @Frequency 1e+6 Hz
Dielectric Strength	30.0 kV/mm	762 kV/in
Dissipation Factor	0.0010 @Frequency 100 Hz	0.0010 @Frequency 100 Hz
	0.0090 @Frequency 1e+6 Hz	0.0090 @Frequency 1e+6 Hz
Arc Resistance	30 - 80 sec	30 - 80 sec	ASTM D495
Comparative Tracking Index	175 V	175 V

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