# PC Board and Acrylic Precision Machining: High-Transparency Aesthetic Solutions for Display Equipment

PC Board vs. Acrylic Sheet: What's the Difference?

In display equipment, protective covers, and optical instruments, PC board (polycarbonate) and acrylic sheet (PMMA/perspex) are the two most commonly used transparent materials. They look similar but have significantly different performance characteristics.

Comparison PC Board (Polycarbonate) Acrylic Sheet (PMMA)
Light Transmittance 86%–90% 92%–93% (optical grade up to 99%)
Impact Resistance 250× that of ordinary glass ~10× that of glass
Temperature Range -40°C ~ +120°C -30°C ~ +80°C
Wear Resistance Moderate (surface hardness 3H) Good (surface hardness 6H)
Flame Retardancy V-0 grade (self-extinguishing) HB grade (combustible)
UV Resistance Requires UV coating Naturally weather-resistant
Density 1.20 g/cm³ 1.19 g/cm³
Machinability Ductile, easy to machine Brittle, requires precision cutting

Dongguan Chaorong Electronics Co., Ltd. has precision machining capabilities for both PC board and acrylic sheet, providing material selection advice and OEM/ODM custom machining services.

Typical PC Board Applications

1. Protective Covers and Safety Windows

- Machinery Protective Covers: PC impact resistance is 250× that of glass, effectively protecting personnel - Drone Protective Covers: Combines transparent visibility with impact resistance - Security Equipment Protective Windows: Anti-breakage, bullet-resistant (thick-gauge versions)

2. LED Lamp Lenses and Shades

PC materials can be injection-molded into various optical lenses, paired with light guide plates for uniform illumination. High-temperature resistance makes it suitable for high-power LED luminaires.

3. Rail Transit Interiors

- Subway/High-Speed Rail Window Glass Alternatives (laminated PC sheet) - Dashboard Transparent Panels - Switch Panel Button Windows

Typical Acrylic Sheet Applications

1. Display Equipment (Core Application)

- Acrylic Display Stands: For jewelry, cosmetics, and electronics display - Acrylic Light Boxes: Backlit/frontlit advertising signs - Acrylic Photo Frames, Trophies, and Medals: High transparency + engraveable, elegant appearance - Mall Promotional Display Stands: Supermarket shelf dividers, promotional displays

2. Signs and Signage

- Acrylic Engraved Letters: Hotel room numbers, company front desk logos - Traffic Signs: Illuminated road signs, directional signs - Safety Signs: Fire safety signs, floor indicators

3. Optical Field

- Spectacle Lenses, Optical Instrument Panels - Microscope Slide Holders - Solar Concentrating Lenses

Precision Machining Capabilities

Process Description Precision
CNC Cutting Arbitrary 2D shapes, complex parts ±0.1mm
Laser Cutting Smooth cut surface, small heat-affected zone, ideal for fine graphics ±0.2mm
Drilling/Milling Through holes, blind holes, precision keyways ±0.05mm
Polishing Cloth-wheel polishing, chemical polishing, flame polishing Transmittance restored to 92%+
Bending Hot-press curved parts, hot bending, precise angles ±1°
Silk-Screen Printing/UV Printing Patterns, logos, text directly printed Photo-quality accuracy
Bonding Acrylic-specific adhesive, transparent seamless splicing —

Chaorong Electronics PC/Acrylic Machining Commitments

- Toll Manufacturing or Full-Service: Customer supplies material or we procure on your behalf - Rapid Prototyping: Samples delivered within 3 days of drawing receipt - Mass Production: Stable delivery, supports OEM brand customization - Quality Assurance: ISO quality management system, inspection report included with each shipment

Material Selection Advice: Choose PC board for high impact resistance; choose acrylic sheet for high transparency and aesthetics; choose acrylic sheet or UV-coated PC board for long-term outdoor use.

For PC board or acrylic sheet machining solutions, contact Dongguan Chaorong Electronics Co., Ltd. We specialize in precision plastic sheet machining and serve display equipment, advertising signage, and protective equipment manufacturers.