Excellent Optical Properties: Features high light transmittance of up to 89%, comparable to glass. When coated with a UV-resistant layer, it effectively blocks ultraviolet light transmission and prevents the sheet from yellowing and hazing due to exposure to sunlight.

Lightweight: Has a low density, only about half that of glass, which reduces transportation, handling, and installation costs, and places less load on supporting structures.

Good Weather Resistance: Maintains stable physical properties across a wide temperature range from -40°C to 120°C (and even short-term higher), without becoming brittle. It exhibits good long-term anti-aging performance for outdoor applications.

High Heat and Cold Resistance: Retains good mechanical strength, rigidity, and dimensional stability in both high and low-temperature environments.

Bendability: Possesses good plasticity and flexibility, allowing for cold-curving at room temperature, making it suitable for arched structures like skylights.

Thermal Insulation and Sound Insulation: Multi-wall and hollow cell structures significantly reduce thermal conduction, offering better insulation than glass of comparable thickness. They also effectively reduce noise transmission.

Anti-Condensation: Under certain conditions (e.g., with multi-wall sheets), the interior surface temperature is higher than that of glass, helping to reduce condensation formation.

Chemical Resistance: Resists weak acids, weak alkalis, alcohols, aliphatic hydrocarbons, and other chemicals. (Note: Resistance is poor against strong acids, strong alkalis, and some organic solvents.)

 Industry & Electronics

Utilizing flame retardancy (some grades reaching V0 rating) and electrical insulation.

Electronics: Mobile phone cases, laptop shells, water dispenser bottles (PC is one of the few plastics approved for food contact), electricity meter boxes.

Industrial Equipment: Machine safety guards, soundproof barriers, riot shields, helmet visors (police riot shields, motorcycle helmet visors).

 Medical & Security

Medical Devices: Due to its transparency and radiation resistance (suitable for high-temperature sterilization), PC is used for hemodialyzer shells, high-pressure syringes, surgical face shields, etc.

Security: Laminated layers in bulletproof glass, bank counter bulletproof barriers.

 Emerging Application Areas

Photovoltaic / New Energy: Backsheets or front sheets for flexible solar panels (utilizing light transmission and weather resistance).

Semiconductors: Wafer transport boxes, electronic component trays (requiring low outgassing and anti-static properties).

What is the difference between Polycarbonate (PC) and Acrylic (PMMA) sheets?
A: This is a common question. Key differences are:

Impact Strength: PC is vastly more impact-resistant and shatterproof than acrylic.

Flexibility: PC is highly flexible (can be cold-curved), while acrylic is rigid and brittle.

Heat Resistance: PC has a higher heat deflection temperature (~120°C / 250°F) than acrylic (~80°C / 176°F).

Surface Hardness: Acrylic has a harder surface and is much more scratch-resistant. Standard PC sheets are prone to scratching without a protective coating.

Cost: PC is typically more expensive than acrylic.