Polycarbonate (PC)

Polycarbonate is a transparent engineering thermoplastic with exceptional impact resistance — 250 times stronger than glass. It offers good optical clarity, dimensional stability, and is widely used for protective covers and optical components.

Machinability

75/100

Tolerance

±0.03 mm

Category

Engineering Plastics

Material Properties

PropertyValue
Tensile Strength65 MPa (9.4 ksi)
Yield Strength62 MPa (9 ksi)
HardnessRockwell M70
Density1.20 g/cm³
Machinability Rating75/100
Thermal Conductivity0.20 W/m·K
Melting Point267 °C (softens at 150°C)
Tolerance±0.03 mm

Common Grades

MakrolonLexanZeluxPC-GF

Advantages

  • Exceptional impact resistance
  • Optically clear
  • Good dimensional stability
  • UL94 V-2 rated
  • Lightweight

Limitations

  • Scratches easily
  • Yellows with UV exposure
  • Susceptible to chemical attack by solvents
  • Stress cracking

Common Applications

Safety shields

Lenses

Light guides

Display windows

Electrical housings

Medical devices

Industries Served

ElectronicsMedicalAutomotiveConsumer ProductsLighting

Available Surface Finishes

As-MachinedPolishedVapor PolishedHard Coated

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