Polycarbonate (PC) is an engineering powerhouse, renowned for its exceptional impact strength and clarity. Unlike standard plastics, PC combines the durability of a tough polymer with the light transmission of glass, making it a premier choice for functional prototypes and end-use parts that must withstand demanding environments. Its excellent dimensional stability and inherent flame retardancy further elevate its status as a versatile material for CNC machining, delivering high-performance components with speed and precision.
KEY BENEFITS
This table highlights the primary advantages of choosing CNC-machined Polycarbonate.
| Benefit | Description |
|---|---|
| Superior Impact Resistance | Offers exceptional toughness and is virtually unbreakable, making it ideal for protective components and housings. |
| High Optical Clarity | Provides excellent light transmission, similar to glass, for applications requiring see-through parts or lenses. |
| Good Thermal Stability | Withstands a wide range of temperatures while maintaining its structural integrity and performance. |
| Inherent Flame Retardancy | Many PC grades are naturally flame retardant (UL 94 V-0, V-2), suitable for electrical and automotive applications. |
| High Stiffness & Strength | Delivers excellent mechanical properties, providing durability and dimensional stability under load. |
APPLICATIONS
This table illustrates the real-world uses of CNC-machined PC across various industries.
| Industry | Specific Part Examples |
|---|---|
| Aerospace & Defense | Aircraft interior components, instrument panels, protective lens covers, helmet visors. |
| Automotive | Headlamp lenses, interior dash components, fluid reservoirs, electrical connectors and housings. |
| Electronics & Enclosures | Machine guards, clear inspection windows, jigs and fixtures, safety helmet visors. |
| Medical Devices | Medical device housings, surgical instrument handles, transparent fluidic components (for gamma or ETO sterilization). |
| Consumer Goods | Protective eyewear, durable consumer electronics cases, point-of-sale displays, components for high-impact sports equipment. |
TECHNICAL SPECIFICATIONS
This table provides a quick-reference overview of key technical properties for standard PC.
| Property | Value / Description | Test Method |
|---|---|---|
| Tensile Strength | 55 – 75 MPa | ASTM D638 |
| Flexural Modulus | 2.1 – 2.4 GPa | ASTM D790 |
| Impact Strength (Izod Notched) | 600 – 850 J/m | ASTM D256 |
| Heat Deflection Temp (HDT) @ 1.8 MPa | 125 – 135 °C | ASTM D648 |
| Light Transmittance | Up to 88% | – |
| Flame Rating | UL 94 V-0, V-2, HB | UL 94 |
| Density | 1.20 – 1.22 g/cm³ | ASTM D792 |
| Machinability | Excellent (Good surface finish, can be prone to internal stress if machined aggressively) | – |
Note: The values provided are typical ranges and can vary based on the specific grade and manufacturer of the Polycarbonate. We recommend consulting with our engineering team for critical applications.