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Domestic Selling Policy

Pinewood Derby Cars

 

 

 

 

Square Watermelon Cases

Square Watermelon Growing Cases

Pig Pipes

Acrylic Colored Pig Pipes

 

 

 

GE Plastics LEXAN 121R Polycarbonate 

Physical Properties Metric English Comments
Density 1.2 g/cc 0.0434 lb/in³  ASTM D 792
Water Absorption 0.15 % 0.15 %  24 hours @ 73F; ASTM D 570
Water Absorption at Saturation 0.35 % 0.35 %  Equilibrium, 73F; ASTM D 570
Water Absorption at Saturation 0.58 % 0.58 %  Equilibrium, 212F; ASTM D 570
Linear Mold Shrinkage 0.005 - 0.007 cm/cm 0.005 - 0.007 in/in  Flow, 0.125 inch; ASTM D 955
Melt Flow 17.5 g/10 min 17.5 g/10 min  300C/1.2 kgf (O); ASTM D 1238

Mechanical Properties
Hardness, Rockwell M 70 70  ASTM D 785
Hardness, Rockwell R 118 118  ASTM D 785
Tensile Strength @ Break 68.9 MPa 10000 psi  Type I, 2.0 in/min; ASTM D 638
Tensile Strength @ Yield 62.1 MPa 9000 psi  Type I, 2.0 in/min; ASTM D 638
Elongation at Break 125 % 125 %  Type I, 2.0 in/min; ASTM D 638
Elongation at Yield 7 % 7 %  Type I, 2.0 in/min; ASTM D 638
Flexural Modulus 2.34 GPa 340 ksi  0.05 in/min, 2" span; ASTM D 790
Flexural Yield Strength 96.5 MPa 14000 psi  0.05 in/min, 2" span; ASTM D 790
Fatigue Strength 6.89 MPa 1000 psi  Fatigue Limit, 2.5 MM cycles; ASTM D 671
Izod Impact, Unnotched 32 J/cm 60 ft-lb/in  73F; ASTM D 4812
Gardner Impact @ 23°C 62.1 J 45.8 ft-lb  Instrumented Impact Energy @ peak, 73F; ASTM D 3763
Tensile Impact Strength 546 kJ/m² 260 ft-lb/in²  Type "S"; ASTM D 1822
Falling Dart Impact 169 J 125 ft-lb  73F; ASTM D 3029
Taber Abrasion, mg/1000 Cycles 10 10  CS-17, 1 kg; ASTM D 1044
Izod Impact, Notched 6.94 J/cm 13 ft-lb/in  73F; ASTM D 256

Electrical Properties
Volume Resistivity Min 1e+017 ohm-cm Min 1e+017 ohm-cm  ASTM D 257
Dielectric Constant 2.96 2.96  1 MHz; ASTM D 150
Dielectric Constant 3.17 3.17  60 Hz; ASTM D 150
Dielectric Strength 15 kV/mm 380 V/mil  in air, 125 mils; ASTM D 149
Dissipation Factor 0.0009 0.0009  60 Hz; ASTM D 150
Dissipation Factor 0.01 0.01  1 MHz; ASTM D 150
Comparative Tracking Index 250 - 400 V 250 - 400 V  (+/- 0.125 inch); PLC Code 2; UL 746A
Hot Wire Ignition, HWI 30 - 60 sec 30 - 60 sec  (+/- 0.125 inch); PLC Code 2; UL 746A
High Amp Arc Ignition, HAI 60 - 120 arcs 60 - 120 arcs  Surface (+/- 0.125 inch); PLC Code 1; UL 746A
High Voltage Arc-Tracking Rate, HVTR 25.4 - 80 mm/min 1 - 3.15 in/min  (+/- 0.125 inch); PLC Code 2; UL 746A

Thermal Properties
CTE, linear 68°F 68.4 µm/m-°C 38 µin/in-°F  Flow, -40F to 200F; ASTM E 831
Heat Capacity 1.26 J/g-°C 0.3 BTU/lb-°F  ASTM C 351
Thermal Conductivity 0.25 W/m-K 1.74 BTU-in/hr-ft²-°F  ASTM C 177
Deflection Temperature at 0.46 MPa (66 psi) 138 °C 280 °F  0.250 inch, unannealed; ASTM D 648
Deflection Temperature at 1.8 MPa (264 psi) 129 °C 265 °F  0.250 inch, unannealed; ASTM D 648
Vicat Softening Point 154 °C 310 °F  Rate B; ASTM D 1525
UL RTI, Electrical 130 °C 266 °F  UL 746B
UL RTI, Mechanical with Impact 130 °C 266 °F  UL 746B
UL RTI, Mechanical without Impact 130 °C 266 °F  UL 746B
Flammability, UL94 HB HB  Tested Thickness = 0.028 in.

Optical Properties
Refractive Index 1.586 1.586  ASTM D 542
Haze 1 % 1 %  0.100 inch; ASTM D 1003
Transmission, Visible 88 % 88 %  0.100 inch; ASTM D 1003

Descriptive Properties
Radiant Panel Listing UL tested  
UL File Number, USA E121562  
UV-light, water exposure/immersion F2  UL746C
 

 

 

 

 

 

 

 

 

Excel Plastics, 251 Perry St. SW, Byron Center, MI  49315  Contact Excel Plastics

Uhmwpe Rods