Oxford Polymers® Compounder and Developer of Engineering Grade Thermoplastics

Polycarbonate

Polycarbonate Page 2 >

Polycarbonate is a broadly used engineering grade thermoplastic. Polycarbonate is easily Injection molded, Extruded or thermoformed; as such, Polycarbonate is widely used especially in applications where any of its main features - high impact resistance, temperature resistance, or excellent clarity - are required.

Examples of uses include: Safety glasses, Automotive lenses, fuses & conncetors, Computer housings, Medical device, Food contact applications.

Polycarbonate Specifications

PC 68 PC 912 PC 1518 PC 20 PC 68-FDA PC 912-FDA PC 1518-FDA PC 20-FDA
  Description ASTM Test Method General Purpose, Low Flow General Purpose, Medium Flow General Purpose, High Flow, General Purpose, Easy Flow FDA, Low Flow FDA, Medium Flow FDA, High Flow FDA, Easy Flow
Physical Melt Flow rate, g-10min D1238 6 to 9 9 to 13 14 to 19 20 to 25 6 to 9 9 to 13 14 to 19 20 to 25
  Specific gravity D792 1.20 1.20 1.20 1.20 1.20 1.20 1.20 1.20
  Mold Shrinkage E-3 in/in D955 5-7 IN/IN 5-7 IN/IN 5-7 IN/IN 5-7 IN/IN 5-7 IN/IN 5-7 IN/IN 5-7 IN/IN 5-7 IN/IN
  Tensile Strength Break, PSI D638 10,500 10,000 10,000 9,500 10,500 10,000 10,000 9,500
  Tensile Strength Yield, PSI D638 9,000 9,000 9,000 9,000 9,000 9,000 9,000 9,000
Mechanical Flexural Strength, PSI D790 14,000 13,900 13,900 13,400 14,000 13,900 13,900 13,400
  Flexural Modulus, PSI x 1000 D790 335 335 335 330 335 335 335 330
  Notched Izod Impact strength ft-lb/in D256 17.0 15.0 13.0 12.0 17.0 15.0 13.0 12.0
  Gardner Falling Dart Impact in-lbs D3029 320 320 320 320 320 320 320 320
Thermal* HDT @66 PSI F D648 280 275 270 265 280 275 270 265
  HDT @264 PSI F D648 270 265 260 255 270 265 260 255
Flammability UL 94 @1/16" UL94 V-2 V-2 V-2 V-2 V-2 V-2 V-2 V-2
  UL 94 @1/8" UL94 V-2 V-2 V-2 V-2 V-2 V-2 V-2 V-2
  Processing method****   IM IM IM IM IM IM IM IM
  Drying Temp F   244-255 245-255 245-255 245-255 245-255 245-255 245-255 245-255
Typical Processing Conditions Units drying Time(hours)   3-4** 3-4** 3-4** 3-4** 3-4** 3-4** 3-4** 3-4**
  Melt Temp (F)   600-650 550-600 550-600 510-560 600-650 550-600 550-600 510-560
  Mold temp(F)   180-240 160-200 160-200 150-200 180-240 160-200 160-200 150-200
  Front Zone(F)   590-630 560-600 540-580 520-560 590-630 560-600 540-580 520-560
  Middle Zone(F)   570-610 540-580 520-560 500-540 570-610 540-580 520-560 500-540
  Rear Zone(F)   550-590 520-560 500-540 480-520 550-590 520-560 500-540 480-520
  * All mechanical and thermal testing conducted on 1/8 thick unpigmeneted test samples
  (Structural foam grades tested with foamed parts, with a 10-20% weight reduction.)
  ** Do not exceed 8 hours
  *** Do not exceed 24 hours
  ****Processing Methods: Injection molding (IM), Structural Foam (SF), Extrusion (E)
  Notched Izod @ 40F, ft-lb/in. ASTM D256