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Polycarbonate

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Polycarbonate resin is one of the toughest, most versatile engineering thermoplastics, combining outstanding electrical insulation properties, performance history and economic advantages over other thermoplastics, metals, glass and other materials. Available with a variety of additive options which enhance UV stabilization, flame and heat resistance, impact strength, dimensional stability and optical quality: Polycarbonate resin is widely used in the appliance, automotive, packaging, electrical and electronic industries.

Makrolon® 8325 (Polycarbonate) Property Sheet
*  All Values are Nominal.
Physical Value Test
Density-Specific Gravity 1.35 sp gr 23/23 ºC ASTM D792
Melt Flow Rate (0 - 300 ºC/1.2 kg) 5 g/10 min ASTM D1238
Mold Shrink, Linear Flow 3 to 4 mil/in ASTM D955
Water Absorption @ 24 hrs .12 % ASTM D570
Water Absorption @ Equil .29 % ASTM D570
Mechanical Value Test
Tensile Strength @ Brk 15000 psi ASTM D638
Tensile Elongation @ Brk 5 % ASTM D638
Flexural Modulus 8e+005 psi ASTM D790
Flexural Strength @ Yld 19500 psi ASTM D790
Impact Value Test
Notched Izod Impact:
(73 ºF, .125 in)
(73 ºF, .25 in)		  
3 ft-lb/in
2.4 ft-lb/in		 ASTM D256
Instrumented Dart Impact Energy 72 in-lb ASTM D3763
Hardness Value Test
Rockwell Hardness (M-Scale) 81 ASTM D785
Thermal Value Test
DTUL @ 264psi - Unannealed 290 ºF ASTM D648
DTUL @ 66psi - Unannealed 293 ºF ASTM D648
CLTE, Flow 1.7e-005 in/in/ºF ASTM D696
Thermal Conductivity 1.53 BTU-in/hr/ft2/ºF ASTM C177
Specific Heat .27 Btu/lb/ºF ASTM C351
Electrical Value Test
Surface Resistivity 1e+014 ohms ASTM D257
Volume Resistivity 1e+016 ohm-cm ASTM D257
Dielectric Strength 760 V/mil ASTM D149
Dielectric Constant:
(60 Hz)
(1e+006 Hz)		  
3.2
3.2		 ASTM D150
Dissipation Factor:
(60 Hz)
(1e+006 Hz)		  
.0009
.01		 ASTM D150
Arc Resistance (.0625 in) 55 sec ASTM D495
Ignition Value Test
Flame Rating - UL:
(.125 in)
(.062 in)		  
V-0
V-2		 UL 94
Limiting Oxygen Index 32 % ASTM D2863
UL 746 Value Test
Rel Temp Index Mech w/o Imp (.062 in) 167 ºF UL 746
Rel Temp Index Mech w/ Imp (.062 in) 167 ºF UL 746
Rel Temp Index Elec (.062 in) 167 ºF UL 746
High Volt Arc Track Rate (.05905 in) 5.905 in/min UL 746
Hot Wire Ignition (.05905 in) 120 sec UL 746
High Ampere Arc Ignition:
(.05905 in)
(.2362 in)		  
120
15		 UL 746
** These are typical property values intended only as guides. They should not be used to establish specification limits or as the sole basis of design. Determining whether this information, or this plastic, should be used for a particular application is the responsibility of the user.