Overview
Polycarbonate (PC) is a highly transparent engineering thermoplastic known for its outstanding impact resistance, optical clarity and dimensional stability. It is virtually unbreakable and is widely used as a lightweight alternative to glass in safety-critical applications. Polycarbonate also offers excellent thermal resistance, electrical insulation and is easily thermoformed or cold bent, making it highly versatile in design and fabrication. It performs well in both indoor and outdoor environments when UV stabilized, making it suitable for a range of protective, industrial and display applications.
Key Features
- Extremely high impact resistance (virtually unbreakable)
- High optical clarity (glass-like transparency)
- Good dimensional stability
- UV stabilized for outdoor use (optional grades)
- Good thermal resistance and flame retardant properties
- Excellent electrical insulating characteristics
- Easily thermoformed, cold bent or machined
- Lightweight (less than half the weight of glass)
- Good chemical resistance to mild cleaners and oils
Applications
- Machine guards and protective screens
- Transparent covers and viewing windows
- Safety glazing and impact shields
- Display and signage panels
- Lighting diffusers and skylights
- Control panels and instrument housings
- Security barriers and partitions
- Greenhouse glazing and roofing panels
Weaknesses
- Susceptible to scratching (requires coating for abrasion resistance)
- Can yellow or degrade with prolonged UV exposure (if not stabilized)
- Limited chemical resistance to solvents and strong acids
