Dafu

When your project demands exceptional clarity, dimensional stability, and reliable electrical insulation, standard plastics often fall short. Enter optical transparent polycarbonate film and sheet​ – a material that combines the impact resistance of polycarbonate with near-glass transparency. Among the leading options in this category, Foshan Dafu New Material Co., Ltd.​ offers a dedicated optical grade PC sheet (code DFPC11) that delivers consistent performance across demanding industrial and consumer applications.

What Makes Dafu Optical PC Sheet Stand Out?

Dafu’s optical grade polycarbonate film is engineered for applications where light transmission and surface quality are critical. Here are the key features backed by real test data:

Superb Transparency

With a light transmission rate of 89–90%​ (tested per ASTM D1003), Dafu DFPC11 rivals glass in clarity while remaining lightweight and shatter-resistant. This makes it ideal for viewing windows, digital photo frames, and protective covers where optical purity matters.

Excellent Printability & Mechanical Strength

The film accepts printing inks well, enabling crisp graphics for nameplates and panels. Mechanically, it offers:

• Tensile strength ≥ 60 MPa​ (ASTM D882)
• Ultimate elongation ≥ 90%
• Pencil hardness 2B​ (ASTM D3363)

This balance of strength and flexibility allows the sheet to withstand handling, forming, and long-term use without cracking.

Thermal Stability You Can Rely On

• Vicat softening temperature: 135°C​ (ASTM D1525)
• Heat shrinkage ≤ 1% at 135°C​ (ASTM D1204)

These numbers mean Dafu PC sheet holds its shape under heat – crucial for processes like thermoforming, screen printing drying ovens, or applications near warm components.

Electrical Insulation & Flame Retardance

For electronics and electrical enclosures, Dafu optical PC offers:

• Dielectric strength ≥ 30 kV/mm​ (at 10 mils, ASTM D149)
• Volume resistivity > 1×10¹⁷ Ω·cm
• Surface resistivity > 1×10¹⁵ Ω·cm
• UL 94 V-2 rating​ at thicknesses ≥ 0.25 mm

This combination qualifies the material for use in insulating layers, control panel windows, and internal barriers in AV/OA equipment.

Low Moisture Absorption

At just 0.35% water absorption​ (24 hr, ASTM D570), the film resists warping and maintains stable dimensions even in humid environments – a must for outdoor or high-moisture settings.

Where Can You Use Dafu Optical PC Sheet?

Thanks to its versatile property profile, Dafu DFPC11 is already specified in these industries:

Dafu also offers metallizing grade​ and hard-coating grade​ versions for customers who need reflective surfaces or scratch-resistant topcoats.

Available Sizes & Customization

The standard DFPC11 optical grade comes in:

• Thickness range:​ 0.100 mm to 3.500 mm (0.004″ – 0.138″)
• Width options:​ 915 mm and 1220 mm (3′ and 4′)
• Gauge tolerance:​ ±10% for thickness < 0.25 mm; ±5% for thickness ≥ 0.25 mm

Both sides are polished (gloss/gloss texture), ensuring maximum clarity right out of the box.

Why Choose Dafu for Your Next Project?

• Proven quality with ASTM-tested data
• Three grades available (optical, hard-coating, metallizing)
• Reliable supply from a Chinese manufacturer with global shipping experience
• Suitable for both prototyping and mass production